Friday, December 05, 2008

Principles of Semiconductor Devices

The purpose of this text is to explore the internal behavior of semiconductor devices, so that we can understand the relation between the device geometry and material parameters on one hand and the resulting electrical characteristics on the other hand.

Principles of Semiconductor Devices 

Principles of Semiconductor Devices  

"The Primary Focus: The MOSFET and CMOS Integrated Circuits The Metal-Oxide-Silicon Field-Effect-Transistor (MOSFET) is the main subject of this text, since it is already the prevailing device in microprocessors and memory circuits. In addition, the MOSFET is increasingly used in areas as diverse as mainframe computers and power electronics. The MOSFET’s advantages over other types of devices are its mature fabrication technology, its successful scaling characteristics and the combination of complementary MOSFETs yielding CMOS circuits."

Some of the Topics
  • Schottky diode current
  • Metal-Semiconductor contacts
  • Electrostatic analysis of a p-n diode
  • Reverse bias breakdown
  • Optoelectronic devices
  • Light Emitting Diodes (LEDs)
  • Ideal transistor model
  • MOSFET SPICE MODEL
  • Power MOSFETs

Engineering Electronics Shop Page

Engineering Electronics Shop Page

The Shop Pages are intended to provide students and staff with access to Internet E.E.-related resources, to explain in detail the functioning of our labs and Shop, and to provide information of particular interest to any E.E. student designing electronics projects. Web readers outside of the University of Nebraska - Lincoln campus should know that some of the services mentioned on these pages are applicable to UN-L only.

Wednesday, December 03, 2008

gedasymbols.org - gEDA suite

gedasymbols.org - gEDA suite

gedasymbols.org. This website is a repository for symbols, footprints and documentation that are useful to anyone using the GPL schematic creation program gschem or the GPL pcb layout program PCB. The misson of gedasymbols.org is to increase the usage of the gEDA suite of tools by distributing symbols and footprints for these programs.

Please note that this site is undergoing transition (as of Feb 2006 at least) so please bear with us while we get our act together. Meanwhile, here are some links to relevent information:

gEDA - full GPL'd suite of Electronic Design Automation tools. These tools are used for electrical circuit design, schematic capture, simulation, prototyping, and production.
Open Collector - gedasymbols - PCB - Delorie Software

Open Programmer PIC and Atmel

An open source USB programmer for PIC micros, I2C EEPROMs, some ATMEL micros, generic I2C/SPI devices and (soon) other devices.

Open Programmer PIC and Atmel

  • Completely free and Open Source (including firmware)
  • Programs PIC10-12-16-18, 24xxxx I2C EEPROMs, some ATMEL micros, communicates with generic I2C & SPI devices (see supported devices)
  • USB interface, HID class (same as keyboards, mice, etc.)
  • Self powered
  • Doesn't need drivers
  • Built from easy to find components (estimated cost ~10€)
  • Hardware generated timings for maximum speed and reliability (writes a 18F2550 in 15s, 8s under Linux)
  • Doesn't saturate your CPU and doesn't suffer when other programs are running
  • Open source control programs for Linux and Windows
USBPicprog, another open source programmer

Monday, December 01, 2008

CompuPhase articles and Application notes

CompuPhase articles and Application notes CompuPhase

On-line publications "for programmers"; they are also written "by programmers".

CompuPhase develops electronic designs, printed circuit boards, prototypes of custom apparatus and the embedded software that runs on the devices. Examples of such apparatus are the various LED-panels that we set up in several exhibit centres, under contract of Podium (Netherlands). Look also at our list of recent projects.

Joar Falstad - Low cost industrial IO

Combine standard Industrial I/O cards and a multimedia PC

The idea is to make the use of low-cost , massproduced industrial I/O cards in conjunction with a multimedia PC easy , yet powerful and flexible.

Joar Falstad - Low cost industrial IO

Joar Falstad - " I'm a self employed service engineer in my own company Jo Tech Service  in Norway " , working with the same products & more ."
  • Advanced automatic spot announcing machine
  • Time & masterfile controlled analog conversion
  • Alarm generator for ships , schematic
  • PLC add on / PLC controlled analog multiplexer schematic
Composing examples using lowcost massproduced industrial standard analog / digital I/O cards :

Special ideas, programming  and news

Standard analog  digital I/O cards  Interface to PC

The function of an indirect regulator  like a thermostate, a textfile listing the correct unitvalues and the PC-clock was  the main  components used while composing / writing this program  . A non complex  program idea . This program is easy to learn and  accurate in practical use 

Jo Tech Service
Lykkmarka 53, 7081 Sjetnemarka, 047 Norway


Tuesday, November 04, 2008

JEDEC - Solid-state Standards

JEDEC - Solid-state Standards

JEDEC is the leading developer of standards for the solid-state industry. The publications and standards that they generate are accepted throughout the world. All JEDEC standards are available online, at no charge.

6th International System-on-Chip (SoC)

IEEE Microwave Theory and Techniques Society

"The IEEE Microwave Theory and Techniques Society - MTT-S is a transnational society with more than 9,000 members and 80 chapters worldwide. Our society promotes the advancement of microwave theory and its applications, including RF, microwave, millimeter-wave, and terahertz technologies."

"The activities sponsored by the MTT-S include a broad spectrum of conferences, workshops, tutorials, technical committees, chapter meetings, publications and professional education programs."

IEEE Microwave Theory and Techniques Society

IEEE - The IEEE, a non-profit organization, is the world's leading professional association for the advancement of technology.

The MTT-S’ field of interest is "microwave theory, techniques and applications" of RF, microwave, guided wave, and wireless technologies, as they relate to components, devices, circuits, transmission lines, and systems involving the generation, modulation, demodulation, control, transmission, detection and effects of electromagnetic signals. It shall include scientific, technical, and industrial activities.

National Electronics Museum

From telegraph and radio to radar and satellites, the National Electronics Museum offers visitors access to the electronic marvels that have helped to shape our country and our world.

Monday, November 03, 2008

Intersil - Analog and Power Semiconductors

Intersil's products include amplifiers, analog front ends, communication interfaces, data converters, digital potentiometers, display solutions, DSL solutions, optical storage products, power management products, real time clocks, switches/MUX's, etc.

Intersil - Analog and Power Semiconductors

Intersil has developed into a leading analog semiconductor manufacturer with five specialized product groups: Consumer Power, Consumer Electronics, Analog Mixed Signal, Industrial Communications and Automotive & Military/Space Specialties.

iSim Online Designer
 
Advanced design tool for creating complex solutions, this is available both as a software download or an online app.

Capture schematic, view waveforms, perform application analysis and more. It is an interactive web-based design tool for selecting and simulating devices from Intersil's broad portfolio. (power management devices and operational amplifiers.)

Remote Strain Gauge Reference Design
 


"Intersil's applications engineer, Daniel Goodhew, presents the remote strain gauge reference design using Nextreme's thermal energy harvester and Intersil's low power, low noise chopper amplifier."

History

The original Intersil was founded in 1967. After being acquired by General Electric Corp in 1981, it was sold to Harris Corporation in 1988, at which point the name was retired. Intersil at Wikipedia.

My own analog design carrer (while in college) started with national semiconductor databooks and Intersil CMOS Hot ideas.

Thursday, October 16, 2008

GE Industrial Systems - Design Resources

Design Resources
Information for electrical engineers when designing or specifying GE equipment.

Publication Library
Technical documentation, time current curves, CSI Specifications.

GE Industrial Systems

Programs available that provide analytical tools, advanced power quality analysis, monitor energy consumption, and manage loads.

Wednesday, October 15, 2008

Spread Spectrum Scene Online

Spread Spectrum Scene Online

RF chips, white papers, FCC, a variety of specialty books on various wireless/ spread spectrum / RF areas, and a wide range of other information.

Spread Spectrum Scene Online is managed by Pegasus Technologies, Inc. A small design house located in East Tennessee. We do custom RF / wireless design work and also offer a variety of Rf modules that can be incorporated into your designs.

Linear Technology - Analog and Interface Solutions

They have unique Interface products that make blending the real world analog and the digital electronics that makes embedded computing possible.

They have Solutions in power management, data conversion, signal conditioning, wireless and circuit and device interface. 

Linear Technology - Analog and Interface Solutions

Some Special Products include - SmartMesh WirelessHART, Signal Chain µModule Receivers, Supercapacitor Chargers, Optical Communications and µModule LED Drivers.  

Linear Technology Corporation was founded in 1981 as a manufacturer of high performance linear integrated circuits. Linear Technology products  include high performance amplifiers, comparators, voltage references, monolithic filters, linear regulators, DC-DC converters, battery chargers, data converters, communications interface circuits, RF signal conditioning circuits, and many other analog functions.



The DC9022 SmartMesh WirelessHART RF Certified Starter Kit provides all the tools for evaluating SmartMesh network performance for your application needs, including high reliability, ultralow power, scalability and ease of installation. This accelerates device integration and application development.

The DC9018A-C Evaluation/Development Mote Modules feature easy-to-probe signal pins. In addition, the starter kit provides access to both manager and mote software application programming interfaces (APIs) to enable application software development.

Linear Technology
1630 McCarthy Blvd. Milpitas, CA  95035-7417, USA.

OpenEEG hardware - Amplifiers

OpenEEG hardware - Amplifiers

OpenEEG hardware - Amplifiers

Design documentation

Amplifier schematic [55kb] (aka analogue board; contains two amplifiers) and digital board schematic [48kb] as images.

Note -

I found the amplifier designs extremely good as a learning material. Medical instruments after development should undergo a approval process and have high product safety requirements. So above circuits to be used for study only, not for practical applications. When integrating, Medical professionals have to beta test it and after approval used for further tests.

A simulated electrical noise signal source for experimentation is good enough for Degree Projects.

- ananth

Friday, September 12, 2008

Lammert Bies - Computer Interfacing

Information about computers and how to interface them to all kind of equipment. Both software and hardware help is available. - Lammert Bies

Lammert Bies - Computer Interfacing

  • RS-232 specs
  • RS-485 information
  • The serial UART
  • USB interface
  • Modbus interface
  • Unitronics RJ11

Simple null modem without handshaking

Simple null modem without handshaking

"only the data lines and signal ground are cross connected in the null modem communication cable. All other pins have no connection. An example of such a null modem cable without handshaking can be seen in the figure below."

interfacebus.com - Interface and Cable design

Providing detailed electronic design information regarding Interface, Computer, Cable, Processor and Embedded Buses. - Leroy Davis

Buses used on Personal Computers, Computers & Peripherals, Standards, Wireless, Logic Design.
    interfacebus.com - Interface and Cable design

    The site is geared toward Engineers who develop or design equipment. There are 3 main sections; OEM Equipment / Components listings, Computer buses, and engineering design data.

    In this site you will find a wealth of knowledge regarding Analog and Digital Integrated Circuits; Memory, Processor and Programmable Logic IC's, Bus Interface IC's,  Passive, and Mechanical components; Resistors, Capacitors, Inductors and Sensors, EDA Software vendors,

    interfacebus.com - Interface and Cable design

    PCI104 Bus

    PCI-104 is the newest variation of the standard. PCI-104 removes the old PC XT / AT bus from the specification leaving only the PCI bus. The PCI bus connector is a 4x30, 2mm stack-through connector. PCI-104 cards may still reside in a stack with either PC/104 cards or PC/104-Plus cards.

    Wednesday, September 10, 2008

    Instrumentation Design Office

    Instrumentation Design Office

    Instrumentation Design Office (IDO) is software for creating and managing industrial instrumentation and control systems design data and documentation including instrument datasheets, loop diagrams, termination diagrams, hookup drawings, I/O lists, instrument index, cable schedules, Bill of Materials and other reports.

    IDO consists of an integrated suite of software applications using advanced graphical user interfaces to a shared project or plant relational database. The user interface is intuitive and includes online help.

    Much of the data is created through automated functions & design rules, picklists and use of catalog data and data importation. IDO essentially automates production of design documentation from the database ensuring superior design integrity and significant reduction in manual data entry.

    Friday, September 05, 2008

    Eng-Tips Forums - Electrical and Electronic

    Eng-Tips Forums - Electrical and Electronic

    These pages will probably help you do a design review of your new circuit or even answer a doubt in your product design. Use the Search.

    • Electrical/Electronic engineering other topics
    • Programmable Logic Controllers (PLC)
    • Communication & Signal Processing engineering

    Wednesday, August 13, 2008

    Compliance Engineering ESD EMC Safety

    Ce-mag.com is the world's foremost on-line resource for international developments in regulatory compliance for electronics engineers.

    Compliance Engineering
    Compliance Engineering ESD EMC Safety
     
    Ce-mag.com serves as an on-line extension of Compliance Engineering magazine, providing the same in-depth print resources readers have come to expect from the print publication. These include all current and archived articles, the annual reference guide, a current events calendar, and the suppliers directory.
    • Compliance Engineering Reference Guide
    • CE-Mag Discussion Forum
    • Mr. Static

    Saturday, August 09, 2008

    Beige Bag Software User Resources

    Beige Bag Software User Resources Beige Bag Software User Resources
    • B² Spiceand RIAA Preamps By John Broskie
    • DC Uninterruped Power Supply by Mike Rooke
    • Stepper Motor Circuit by Mike Rooke
    • Polyphase AC source - by Harvey Morehouse
    • Simple Nonlinear Inductor Modeling by Harvey Morehouse
    • Simple Mechanical DC Relays by Harvey Morehouse
    • SMPS modeling by Harvey Morehouse
    B2 Spice v5

    The latest version of the popular and powerful mixed mode simulator builds upon B2 Spice A/D v4's powerful capabilities to reach new standards in ease-of-use, power, and capabilities.

    B2 Spice A/D v4


    A fully featured mixed mode simulator that builds upon B2 Spice A/D 2000's ease of use and adds its own powerful and innovative features to make it the simulator of choice for power SPICE users.

    New features include a parts chooser window, workspace editor, importing and exporting to Eagle PCB as well as other PCB programs, and animated schematics.

    Friday, August 08, 2008

    National Instruments - Test and Measurement

    Use Computers and the Web, to create custom, software configurable and Modular T&M for test automation, research and industrial process control. Products include LabVIEW, Multisim and Modular Plug-in like hardware that can be interconnected and interfaced to Computing system.

    National Instruments - Test and Measurement

    NI 9792 WSN Programmable Gateway

    KnowledgeBase - Browse common questions and answers, with illustrations and step-by-step instructions.
    LabVIEW, Data Acquisition, Modular Instruments, PXI, Programmable Automation Controllers.
    • VXI and VME
    • PXI and CompactPCI
    • LXI and LAN
    Seen on right is a NI 9792 WSN Programmable Gateway
    • Small rugged LabVIEW Real-Time embedded controller
    • 533 MHz processor, 256 MB DDR2 memory.
    • 2 GB nonvolatile storage for local data logging
    • 2.4 GHz, IEEE 802.15.4 radio - Star and Mesh
    • Dual Ethernet ports.
    • Embedded Web and file servers
    • Hi-Speed USB host port

    Wednesday, August 06, 2008

    Robotics Institute - Publications

    Robotics Institute: Publications

    This site includes abstracts and bibliographic references for most publications by RI researchers. Additionally, the full text of many of the publications is downloadable in PDF or Postscript format.

    The Robotics Institute - Carnegie Mellon University

    Thursday, July 17, 2008

    Brannon Electronics Inc - Design Services

    Professional Services in Analog and Digital Circuit Design, PC Board Layout, and Embedded Controller hardware/software.

    Brannon Electronics Inc - Design Services
    • Cross Conduction Inhibit in Switching Power Supplies
    • Push-Pull DC to DC Converter
    • Self-Oscillating DC to DC Converter
    • Status Inputs using Serial Link
    • 4 Phase Clock Generator
    • I2C Isolation Barrier
    Embedded Processor/Controller Design

    New Product Design, Firmware Coding and Modification, System tradeoffs and improvements, C and assembly programming.

    More ... Electronic Design Tips - written by Tom Brannon.

    Serial Status Input Circuit

    Serial Status Input Circuit

    When collecting status input data, a few points rapidly consume many connections requiring distribution panels, multiplex logic and expensive parallel IO devices. This simple serial circuit allows you to daisy chain status inputs up to 16 inputs using only four wires. I chose this circuit for a Subsea System due to the high cost of underwater cabling and connectors.

    uCpros - MicroController Pros

    uCpros - MicroController Pros

    Embedded System Design, Microcontroller Development Tools, Management & Marketing, Training, Technical Writing and Translation Services

    Training
    MiicroController Pros develops and conducts corporate training courses. We offer customization of training programs to meet your specific microcontroller software and hardware development training needs.

    Technical Writing
    MicroController Pros is your technical writing resource. We perform contract technical writing services, like: report writing; specification writing; and technical writing of manuals, datasheets, application notes and product articles.

    CSE - Electronic Design Consulting Services

    Electronic System Problem Solving for High-Tech and New Product Research & Development. The design products using select leading-edge devices and technology to assure that you get the maximum benefits available today.

    CSE - Electronic Design Consulting Services

    Concept Exploration, Schematic Capture, Device Programming, Board Layout, Circuit Board Production, Product Development. They also undertake Device porting, Prototype testing and MTBF Calculations.

    CSE - Electronic Design Consulting Services

    Support for Electromechanical Design and Mechanical Tools. They help with Boxes and housings, CNC machining, Plastic injection molding, Stereolithography prototypes and CAD based mechanical drafting and drawing.

    CSE provides tried and true electronic consulting services for a broad range of electronic circuit types and technologies.
    • Digital electronics, including high-speed processor based systems,....
    • Analog electronics, including video, RF, specialty transducer interfacing,....
    • Various digital communications protocols and hardware standard architectures,...
    CSE - Electronic Consulting Services - Florida
    2664 Sunvale Ct., Cape Coral, FL 33991 - USA

    Wednesday, July 16, 2008

    Indesign - Electronic Product Development

    Indesign - Electronic Product Development

    Indesign, LLC. Indianapolis. - Engineering Services - Electronic Product Design Engineering.

    Engineering Design of Electronic Products and Systems. Engineering Design Center, Company formed in 1996 by a group of Bell Labs engineers. Electrical, Software, Mechanical, Human Factors, Testing.

    Areas- Consumer, Medical, Computer, Military, Industrial, Automotive, etc.

    John Shaw Process Control Solutions

    John Shaw Process Control Solutions

    Consulting and contract engineering services for manufacturers and users of process control equipment and systems.


    Netrino - Embedded Experts

    Netrino - Embedded Experts

    Netrino's specialty is the design and development of products with computers embedded inside them. Each member of our team of senior engineers has specific skills and expertise such as mechanical engineering, electrical engineering, and/or embedded software development.

    Embedded Systems Glossary. The glossary is sorted alphabetically, with one page for each letter and another for terms that start with numbers or symbols. The maintainer of the glossary is a founder of Netrino and co-author of the book Embedded Systems Dictionary. - Michael Barr

    The Articles section of our library contains most of our published magazine and journal articles, conference papers, and many other short technical pieces relevant to the practice of real-time embedded systems design.

    Theta Electronic Engineering Services

    Theta Electronic Engineering Services
    "Theta Engineering was founded in 1993 to provide economical engineering services for companies needing to augment their technical resources. Theta Engineering provides a full range of electronic design and software/firmware development services aimed at getting your product to market."
    Products developed by Theta Engineering
    Robotic Cell Phone Programmer

    Designed and programmed custom stepper motor driver boards for a robotic cellular phone programmer. This project involved inter-processor communication between 8 Microchip PIC-family microcontrollers supporting simultaneous motion of up to 7 axes.
    Robotic Arm Test System Project
    Designed and built 4 different automated test fixtures for Beckman Instruments (now Beckman Coulter). The unit pictured uses a combination of pneumatics and electronics for measuring the force and accuracy of a robotic arm which is itself a component in one of Beckman's medical lab instruments.

    Thursday, June 26, 2008

    fpga4fun - Electronic Adventures with FPGA

    fpga4fun - Electronic Adventures with FPGA
     
    "This site reflects my experience and my opinions on FPGA technology. It is meant to be informative and useful to anybody interested in learning FPGA technology."

    - Jean P. Nicolle
    • HDL tutorials
    • SMD technology
    • Crystals and oscillators
    • How FPGAs work
    • Digital oscilloscope

    Wednesday, June 25, 2008

    Synopsys - EDA Software Services

    Synopsys - EDA Software Services

    "Synopsys, Inc. is a world leader in delivering semiconductor design software, intellectual property (IP), design for manufacturing (DFM) solutions and professional services that companies use to design systems-on-chips (SoCs) and electronic systems."

    "The company was founded in 1986 by Dr. Aart J. de Geus and a team of engineers from General Electric's Microelectronics Cente...."

    Synopsys Virtualizer Development Kit (VDK) for evaluation and education

    Software as a Service. SaaS

    "It includes a virtualized Ethernet Controller, UARTs, keyboard and mouse interfaces, and a frame-buffer console that allows the user to interact with the platform, just like you would with a real hardware board."

    Synopsys Virtualizer Development Kit

    Synopsys Corporate Headquarters
    700 East Middlefield Road, Mountain View, CA 94043 USA

    gEDA - Electronic Design Automation

    The gEDA project is working on producing a full GPL'd suite of Electronic Design Automation tools. These tools are used for electrical circuit  design, schematic capture, simulation, prototyping, and production.

    gEDA  - Electronic Design Automation

    Currently, the gEDA project offers a mature suite of free software applications for electronics design, including schematic capture, attribute management, bill of materials (BOM) generation, netlisting into over 20 netlist formats, analog and digital simulation, and printed circuit board (PCB) layout.

    gEDA Project's Homepage 

    gEDA  - Electronic Design Automation

    gschem is the schematic capture program/tool which is part of gEDA. Its sole purpose is to facilitate the graphical input of components/circuits.

    PCB is an interactive printed circuit board editor.  PCB offers high end features such as an autorouter and trace optimizer which can tremendously reduce layout time. For custom requirements,

    Icarus Verilog is a Verilog simulation and synthesis tool. It operates as a compiler, compiling source code written in Verilog (IEEE-1364) into some target format. For batch simulation, the compiler can generate an intermediate form called vvp assembly.

    GTKWave is a fully featured GTK+ based waveform viewer. GTKWave is designed to handle many signals at once, it has three signal searching modes (Regular Expressions, Hierarchy, and Tree) as well as the ability to display data in many different formats.

    GTKWave

    Tuesday, June 24, 2008

    Embedded Systems Academy - Training Consulting

    Embedded Systems Academy - Training Consulting

    "Expertise covers several microcontroller architectures and their development tool chains. In addition we focus on topics such as time-to-market, quality improvement and embedded networking applications using Controller Area Network (CAN, CANbus), CANopen and Embedded Internetworking."

    • Code Architect - Free code generation tool
    • MicroCANopen - Free, minimized CANopen stack
    • MicroMessaging - Embedded serial network system
    • Philips 8051, XA - Free code examples and libraries
    • German page esacademy.de

    Eda-Stds.org - Electronic Design Automation

    Eda-Stds.org - Electronic Design Automation

    Dedicated to the support, open exchange and dissemination of in-development standards from EDA Industry Working Groups. The Electronic Design Automation (EDA) and Electronic Computer-Aided Design (ECAD) one-stop resource on the WWW!

    Mentor Graphics - Technical Publications

    Mentor Graphics - EDA Technology

    Mentor Graphics is a technology leader in electronic design automation (EDA), providing software and hardware design solutions that enable companies to develop better electronic products faster and more cost-effectively.

    The company offers innovative products and solutions that help engineers overcome the design challenges they face in the increasingly complex worlds of board and chip design.

    EZwave can analyze time or frequency domain waveform of any type: analog, digital, eye diagram, smith chart, polar or complex chart, and histogram.

    "The EZwave Joint Waveform DataBase (JWDB) is a high-performance waveform database for manipulating huge waveform databases from leading simulators, loading gigabytes of data in seconds."


    From Hyper
    Embedded - Microcontroller ASIC and EDA
    LP Viewer

    "View Physical Component and Land Pattern superimposed for visual accuracy. You can turn layers on/off, print datasheets, see component dimensions, land pattern dimensions, calculator setting, global settings, Toe, Heel and Side statistical data."

    Saturday, May 10, 2008

    Transtronics Automation - Industrial Control

    Transtronics Automation - Industrial Control

    Industrial control automation equipment. PC test equipment, PLC battery backup, Current sensing, Lots of useful information.

    • Capacitors and ESR
    • Pressure Transducer Primer
    • Thermostat signals and wiring
    • Dead-band or Hysteresis
    • Intro to ladder logic

    Friday, May 09, 2008

    Rohde and Schwarz - Application Notes

    Rohde & Schwarz is a leading supplier of solutions in the fields of test and measurement, broadcasting, radiomonitoring and radiolocation.

    Test and measurement equipment for mobile radios and radiocommunications.

    Dr. Lothar Rohde and Dr. Hermann Schwarz set up shop under the name "Physikalisch-technisches Entwicklungslabor Dr. L. Rohde und Dr. H. Schwarz" (PTE)......... 75 Years Rohde & Schwarz

    Tektronix Test and Measurement Equipment

    Tektronix electronic test, measurement and monitoring equipment. Products include oscilloscopes, logic analyzers, fiber optic instruments, video and mobile protocol test equipment. It is also called Tek.

    Tektronix Test and Measurement Equipment
     
    Tektronix electronic test, measurement and monitoring equipment. Tektronix, Inc. is a United States corporation best known for its test and measurement equipment such as oscilloscopes, logic analyzers, and video and mobile test protocol equipment. Tek is the nickname by which Tektronix is known to its employees, customers, and neighbors.

    Oscilloscopes are indispensable tools for anyone designing, manufacturing or repairing electronic equipment. In today's fast-paced world, engineers need the best tools available to solve their measurement challenges quickly and accurately.

    Tektronix Test and Measurement Equipment

    MSO/DPO Series Mixed Signal Oscilloscope Virtual Product Demo
     
    The company traces its roots to the electronics revolution that immediately followed World War II. The company's founders C. Howard Vollum and Melvin J. "Jack" Murdock invented the world's first triggered oscilloscope in 1946, a significant technological breakthrough.

    XYZs of Oscilloscopes - Tektronix
     
    "Oscilloscopes are indispensable tools for anyone designing, manufacturing or repairing electronic equipment. In today's fast-paced world, engineers need the best tools available to solve their measurement challenges quickly and accurately. "

    Tektronix Oscilloscopes Museum
     
    This site contains photos, specs, material and stories about tube built Tektronix oscilloscopes up to the late 60´s. The reasons of outstanding quality and inspired engineering of these classic scopes formed the basis of the worldwide reputation of Tektronix.

    Wednesday, May 07, 2008

    Keysight Technologies - Test and Measurement

    "From a small garage in Palo Alto, California, to employees around the world serving customers in 110 countries......."  Changes that happened --- hp >> agilent >> Keysight Technologies

    Please Note - Just like HP who started as a T&M Equipment firm, hived off the founding Niche as Agilent, Now Keysight holds that root Niche of T&M that companies like Fluke, Tek and Rohde & Schwarz belong.

    The company founded by William "Bill" Redington Hewlett and Dave Packard was know as Hewlett-Packard Company or HP. This was a Test and Measurement company. First popular product was a precision audio oscillator, the Model HP200A.

    Later Computer and Printer products divisions retained the brand and firm and Agilent was spun off for for the Test and Measurement and other non-computer product line.

    Keysight Technologies - Test and Measurement



    34405A Digital Multimeter, 5½ digit

    "The 34405A comes with a broad range of measurement functions, including temperature and capacitance measurements. The 34405A features simultaneous reading of DC and AC measurements with its dual display and can take up to 19 readings/sec at 4½ digit resolution through the standard USB interface."

    History Breadcrumb -  HP --- Agilent --- Keysight

    Fluke Electronics - Industrial and Electrical TM

    Fluke Electronics - Industrial and Electrical TM
      Fluke 125 Industrial Network Test
    Fluke test tools offer solutions in predictive maintenance, electrical testing, biomedical test, thermography, and plant maintenance. Manufactures, distributes and services electronic test tools.

    Fluke 125 Industrial Network Test
     
    "Fluke 125 is the ScopeMeter of choice for the maintenance engineer who deals with industrial machinery and the industrial network connecting his machinery."

    Bandwidth - 40 MHz

    Sample Rate:
    • 2.5 GS/s repetitive sampling
    • 25 MS/s single shot sampling
    Fluke Application Notes

    Thursday, April 17, 2008

    International Rectifier - Power Semiconductors

    International Rectifier Corp. is a manufacturer of power semiconductors like MOSFET, IGBT, diodes and thyristors. They also provide the support devices which are analog and mixed-signal ICs, power systems and specialized components.

    International Rectifier - Power Semiconductors
    • Reference Designs
    • HEXFET Power MOSFETs
    • High Voltage Gate Drivers
    • IGBTs
    • Integrated Circuits
    IRAM Evaluation Kit with the IRMCF341 Motor Controller

    IRMCF341 Motor Controller
    The IRADK-S10UP60 is an Evaluation kit for the 6A and 10A IRAM Integrated Power Modules in SIP1 packages. These modules are optimized for electronic control of 3- phase motors in a variety of industrial and appliance applications in the 400W to 750W power range.

    International Rectifier
    101 N Sepulveda Blvd. El Segundo, CA 90245 USA

    Updated Aug 2013

    Wednesday, April 16, 2008

    Open Circuits - Open Source Electronics

    Open Circuits is a wiki for sharing open source electronics knowledge, schematics, board layouts, ports and parts libraries. This include open hardware Music Players, atomic microscopes, PC, PDA and mobile phones, and batteries. Please help us to build this resource by submitting your component descriptions, projects, techniques, and PCB footprints.

    Open Circuits - Open Source Electronics

    Some Projects that look Interesting are

    • Multi-purpose Embedded System
    • dsPIC33 Development Board
    • ADuC832 Development Board
    • N8VEM Home Brew Computing Project

    The Open Source Movement, typically covers Open Hardware, Open Firmware, and Open Software. The Open Firmware movement provides firmware which you may also know as soft-IP or FPGA coding see Open Cores for more details.

    Excellent examples of Open Hardware projects range from projects at OpenCircuits to Tiny Embedded Ethernet Devices and Advanced & Intelligent Camera Designs which provide solid-state camera and FPGA assisted hardware designs. A solid overview of projects can also be found at Open Innovation Projects.

    National Semiconductor - Texas Instrurments

    National Semiconductor was an American semiconductor manufacturer, that specialized in analog devices and subsystems, formerly headquartered in Santa Clara, California, USA.
    National Semiconductor Corporation Logo

    The products of National Semiconductor included power management circuits, display drivers, audio and operational amplifiers, communication interface products and data conversion solutions.

    National Semiconductor

    National's key markets included wireless handsets, displays and a variety of broad electronics markets, including medical, automotive, industrial, and test and measurement applications.

    On September 23, 2011, the company formally became part of Texas Instruments as the "Silicon Valley" division.

    Wiki of National Semiconductor

    An Exquisite Evaluation Board from National Semiconductor

    National Semiconductor

    SD356EVK Evaluation Kit Board for LMH0356 SDI Reclocker

    Thursday, March 20, 2008

    ibrt Engineering Solutions

    ibrt Engineering Solutions

    Ing.Büro R.Tschaggelar offers a wide range of consulting services including

    • hardware and software - design and development
    • PC based or embedded
    • control and communication applications
    • simulations and measurements

    german pages - ein eher kleiner Teil auf deutsch

    Area - broad combined background from electronics, software engineering and physics, many complex problems become more solvable.

    Atlantic Quality Design Product Design Services

    Atlantic Quality Design Product Design Services

    Electronics development services to industry from offices in Virginia. From small gadgets to nationwide systems and factory floor instrumentation.

    Area- Embedded system design, that is, microprocessor based products. This includes all the real world analog, digital, and communications interfaces demanded of today's applications.

    Electronic product design and see the Interesting Publications too.

    Colorado Electronic Product Design

    Colorado Electronic Product Design

    Electronic Design

    o System design
    o Hardware
    o Software
    o Regulatory Approvals
    o Patent Documentation
    o Product Feasibility Study
    o Product Cost reduction
    o Transfer to Manufacturing

    Monday, March 17, 2008

    MAX8881and DS2490 Characterization for Cells

    Rechargeable AA cells are very popular for a large variety of portable applications. The number of brands is also high, and the cell quality can differ considerably. Cell capacity is sometimes different from that specified, and the capacity often deteriorates dramatically after a limited number of discharge cycles. ....

    See Maxim Application Note - Simple Characterization Circuit for Rechargeable AA Cells

    PDF Copy - Simple Characterization Circuit for Rechargeable AA Cells

    Resources

    Sunday, March 16, 2008

    PWM Control Circuit - TL494

    PWM Control Circuit - TL494

    • Complete PWM Power-Control Circuitry
    • Uncommitted Outputs for 200-mA Sink or Source Current
    • Output Control Selects Single-Ended or Push-Pull Operation
    • Internal Circuitry Prohibits Double Pulse at Either Output
    • Variable Dead Time Provides Control Over Total Range
    • Internal Regulator Provides a Stable 5-V Reference Supply With 5% Tolerance
    • Circuit Architecture Allows Easy Synchronization

    The TL494 incorporates all the functions required in the construction of a pulse-width-modulation (PWM) control circuit on a single chip. Designed primarily for power-supply control, this device offers the flexibility to tailor the power-supply control circuitry to a specific application.

    The TL494 contains two error amplifiers, an on-chip adjustable oscillator, a dead-time control (DTC) comparator, a pulse-steering control flip-flop, a 5-V, 5%-precision regulator, and output-control circuits.

    View Application Notes for PWM Power Supply Controllers

    TL494 Related Links

    Wednesday, February 13, 2008

    Avtech Applications Information

    Avtech Applications Information - and other useful information. LabView Drivers are available.
    • General Applications Information
    • What Coaxial Cable Should I Use?
    • How Can I Connect to an SHV Connector?
    • How Can I Extend the Amplitude Range to Low Levels?
    • How to Deliver a Fast 2 Amp Pulse to a Diode in a Probing Station
    Avtech Electrosystems - Nanosecond Waveform Generators
     
    Avtech
    Avtech manufactures over 500 standard models, ranging from basic general-purpose ±5V pulse generators, to exotic 500 Amp ultra-high-current laser diode drivers, and including ultra-high-speed pulse generators with rise times as low as 40 ps!

    Some Test Equipment they make
    • Frequency Dividers
    • Pulse Converters & Stretchers
    • Broadband bias tees
    • 1 to 10 Ohm Transmission Lines
    Avtech Electrosystems Ltd.
    PO Box 265, Ogdensburg, NY, 13669-0265 USA

    Tuesday, February 12, 2008

    Professor Mark Csele - Projects and Hobbies

    "I present, below, a collection of projects I have worked-on over the past few years. For over a decade, I had taught both embedded systems (microcontroller technology) and digital signal processing and practice what I preach...."

    Professor Mark Csele - Projects and Hobbies

    Nixie Thermostat - A heating and cooling thermostat employing technologies spanning fourty years from the unique Nixie tube display, circa 1960's, to a PIC 18F microcontroller, circa 2006.

    A High-Powered Power Backup Inverter

    A High-Powered Power Backup Inverter - The working prototype of the 2 KVA inverter is complete. Fed from an array of lead-acid cells totalling 600 Ah (at 12 Volts), it easily drives real-world loads such as single-phase motors. The inverter has been tested and found to operate at an efficiency of between 71% and 82% driving a variety of both inductive and resistive loads

    Peter H. Anderson - Embedded Processor Control

    Peter H. Anderson - Embedded Processor Control

    PC Parallel Port, BasicX, BASIC Stamp, 68HC11, PIC, PICAXE, Data Acquisition and Control
    Peter Anderson
    • Serial K Thermocouple
    • Relative Humidity and Temperature Sender Unit
    • Dallas DS1821 Thermostat Programmer
    • EPROM Tutorials
    • Parallel Port Basics
    • Homebrew Basic Stamp 2 on a Protoboard
    • Programming in PIC C
    Serial Control and Measurement. Many Microchip PIC Types , Use of a  PC Printer Port for Control and Data Acquisition,  Interfacing with 2, 3 and 4 Wire Serial Devices.

    (Thanks - Many students have learnt from these pages and it has also helped them in their career, thanks again to the excellent writing and teaching - delabs)

    Douglas Beattie Engineering Consultant

    Douglas Beattie Engineering Consultant

    • 6502 / 65C02: Hardware / Software
    • eZ80F91 Reference Design
    • Parallel Port Interfacing (''roll-your-own'')
    • Z80 Forth page

    Wednesday, February 06, 2008

    Kilowatt Classroom Electrical Training

    The Industrial Electricians Notebook - Free online electrical books selection that features interesting and timely subjects: electrical theory, electrical reference information, electrical equipment and maintenance data, industrial electronics, and electrical safety regulations.

    Kilowatt Classroom Electrical Training

    "The harnessing of electrical power to lighten mankind’s work-load is only a little over a century old. During my own career, I have witnessed many changes in equipment, work methods, industry organization, and company philosophies."

    Kilowatt Classroom Electrical Training

    "All electrical systems are composed of the same basic equipment. Experience has shown it is most economical to generate power in large bulks, transmit it at very high voltage to minimize line losses, and transform it to low voltages for safe feeding to individual customers in small quantities."

    The Electrician’s Notebook - Kilowatt Classroom, LLC - Elwood V. Gilliland

    Monday, February 04, 2008

    NASA Tech Briefs and Innovations

    NASA Tech Briefs and Innovations

    "The monthly magazine features exclusive reports of innovations developed by NASA and its industry partners/contractors that can be applied to develop new/improved products and solve engineering or manufacturing problems."

    • Electronics & Computers
    • Semiconductors & ICs
    • Materials
    • Manufacturing & Prototyping
    • Machinery & Automation
    • Test & Measurement

    Blocks

    80C51 Analog Analog-Design Analytical-Instrumentation Android Application-Notes-2 ASIC-Design ASIC-SOC-FPGA Bipolar-Transistors Capacitors Circuit-Archive Circuit-Design Circuit-Design-2 Communications Communications-Chips Component-Testing Computer-IC-Module Computer-Interfacing Control-Systems Design-Service Design-Service-2 Design-Service-3 Digital Discrete-Semiconductors DSP EDA EDA-2 EDA-3 EDA-4 EDA-5 Educational Educational-2 Electrical Electromechanical Embedded Embedded-2 Embedded-Applications Embedded-Systems-Tools Energy-Power Engineering-Services Engineering-Services-2 Engineering-Services-3 ESD-EMI-RFI Firmware Home-Automation Industrial-Automation IoT-WSN-M2M LED-Lighting Magazines Manufacturing-Services Materials-Nanotech Mechanical-3D-CAD Mechatronics Medical-Electronics MEMS Microcontroller Microelectronics Mixed Mixed-Semiconductor Mixed-Signal-Design Opamps Open-Hardware Optoelectronics Organizations-Associations Passive-Components PCB-Layout Photonics-Optics PIC Power-Devices Power-Electronics Power-Electronics-Design Process-Control Process-Control-2 Product-Safety Product-System-Design Projects Quality Reference Research-Institutes RF-Components RF-Design RF-Engineering-Services RF-Microwave RF-Semiconductor RF-Wireless-Networking Robotics Scientific-Software Semiconductors Sensors SMPS-Power-Supply Software-Code Spice-Simulation Standards Standards-2 Tech-Docs Tech-Media Technical-Computing Test-Measurement TM-Applications Training-Consulting Virtual-Instrumentation