Design Gopher

Product and Process Design. Electronic Projects, EE Magazines and EDA Tools. Design Reference like HandBooks, Manuals and Datasheets.

Search This Blog

Saturday, September 05, 2020

ROHM - Electronic Components

ROHM Co. Ltd. was established in Kyoto, Japan, in 1958. ROHM designs and manufactures semiconductors, integrated circuits and other electronic components. These components find a home in the dynamic and ever-growing wireless, computer, automotive and consumer electronics markets.....

ROHM - Electronic Components - https://www.rohm.com/

1954 - Toyo Electronics Industry established. Carbon film resistors developed and marketed.
1967 - Transistors and switching diode developed and marketed.

Company History Rohm

Discrete Semiconductors, Opto Electronics, LED / LCD Drivers, Sensor ICs, Laser Diodes, Contact Image Sensor.

ROHM - Electronic Components

High speed Switching - High Voltage Resistance MOSFET Series

ROHM expands its widely used lineup of high speed switching, high voltage resistance MOSFETs for PFC circuits in switching power supplies and main switch circuits with a variety of package types.

ROHM Semiconductor Americas
2323 Owen Street Santa Clara, CA 95054 United States

Tuesday, September 01, 2020

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.

 Linear Technologynow part of Analog Devices

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.

Linear Technology - Analog and Interface Solutions

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.

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. In 2017 Intersil  became a part of Renesas.

Intersil - Analog and Power Semiconductors

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.

History

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.

Monday, August 10, 2020

Autodesk - 2D and 3D CAD

Since 1982, Autodesk has ushered in state-of-the-art 2D and 3D technologies that let customers visualize, simulate, and analyze the real-world performance of their ideas early in the design process.

Autodesk - 2D and 3D CAD -  https://www.autodesk.com/

AutoCAD is a suite of CAD software products for 2- and 3-dimensional design and drafting, developed and sold by Autodesk, Inc.. The original concept of AutoCAD in the 1980s was to promote customization and feature extensibility, and was what made it especially appealing to customers.
Most contemporary CAD products at that time offered little if any customization capability and most were far more expensive.

clever is your personal assistant within Inventor

clever is your personal assistant within Inventor, for a quick access to where used and variants/copies. One click opens your drawing or model, or let you replace components.

MIPS Technologies - Semiconductor design IP

MIPS creates industry-standard processor architectures and embedded semiconductor cores that are the heart of many Electronic Gadgets and Equipment or Appliance.

The MIPS architecture was developed decades ago by Stanford University engineering Professor John Hennessy. It is an remarkable example of RISC processing.

"On 8 February 2013[5] MIPS Technologies, Inc. was acquired by Imagination Technologies"

"Imagination Technologies Group plc  a British-based semiconductor R&D company"

MIPS Technologies - Semiconductor design IP - Wayback Machine Snapshot

Processors, analog IP and software tools for the embedded market. Applications in digital television, broadband access, WiFi, cable set-top boxes, DVD recorders, HD DVDs, and VoIP.
  • RF and Wireless Connectivity IP Solutions
  • Connectivity IP Solutions
  • FPGAView Software
The MIPS SEAD -3

The MIPS SEAD -3 System engineering and development board is designed to provide a low-cost means to support various CPU cores allowing the user to evaluate the cores in an FPGA environment.

SEAD-3 also provides a user the ability to utilize the on board Xilinx FPGA for their own custom programming when a MIPS® FM-3 module is added to house the CPU core. When the FM-3 is added the user can then additionally stack on a MIPS® FPGA 5b board that can house up to two additional Xilinx XC5VLX330s providing extra design capacity.

MIPS Technologies, Inc.
955 East Arques Avenue, Sunnyvale, CA 94085, United States

Updated 4th June 2014

Wednesday, August 05, 2020

Linear Applications Handbook

National Semiconductors Application note collection. Circuits and design notes of many analog and mixed signal chips. These designs just work and building them will help you learn the Science of Analog Design.

Linear Applications Handbook

National Semiconductor Linear Applications Handbook.

1994 National Semiconductor Corporation (now part of Texas Instruments or TI). TI, Fairchild, National and others were born with the chips. The birth of Integrated Circuits starts with them. Even the people who made Intel and many others have their early roots in these mother firms.

Sunday, July 12, 2020

Electric VLSI Design System EDA

Custom IC layout, Schematic Capture, Languages such as VHDL and Verilog. An Open-source Electronic Design Automation, EDA.

Electric VLSI Design System EDA

Electric EDA of Static Free Software written by Steven M. Rubin

"Electric has many analysis tools, including design-rule checking, simulation, and network comparison. Electric has many synthesis tools, including routing, compaction, silicon compilation, PLA generation, and compensation."

Electric VLSI Design System EDA

Electric is a sophisticated electrical CAD system

Electric is a sophisticated electrical CAD system that can handle many forms of circuit design, including.    Custom IC layout ASICs, Schematic drawing, Hardware description language specifications.

ESI Group - Virtual Prototyping Solutions

Software Simulation Solution for prototype development and manufacturing process engineering with applied mechanics. - https://www.esi-group.com/

ESI Group - Virtual Prototyping Solutions

ESI Group - Paris, France - ESI is a world-leading supplier and pioneer of digital simulation software for prototyping and manufacturing processes that take into account material physics.

"Extensive suite of coherent, industry-oriented applications to realistically simulate a product's behavior during testing and real life use.." ESI's products represent a unique collaborative and open environment for End-to-End Virtual Prototyping.

ESI Group - Virtual Prototyping Solutions

Visual-Viewer from ESI is a complete, productive and innovative post processing environment for CAE applications.

Visual-Viewer allows easy and fast graphical interpretation with very useful animation control features such as simple section cut tool, video reading and aligning with simulations, synchronized simulation, and plot windows.

ESI Group
100-102 Avenue de Suffren 75015 Paris FRANCE

Monday, July 06, 2020

Glew Engineering - Technology Expertise

Consulting Service for the semiconductor and microelectronic industry, FEA modeling, mechanical, electrical & materials engineering applications. https://glewengineering.com/

Glew Engineering - Technology Expertise

Experts in Electrical, Materials and Mechanical Engineering Consulting. Consulting and Support areas include Business Development, Solar & Flat Panel Technologies, Materials Science among many others.

CAD and finite element analysis (FEA)

FEA allows for comprehensive modeling of the chamber's integrity during testing conditions. The FEA model serves as a virtual experiment that allows reduction in prototype cost and testing. An accurate model can reduce the costly repercussions of an incorrectly designed system.

Glew Engineering - Technology Expertise

High-Purity Gas Panels Part 10
:
Pressure Transducers in Semiconductor Equipment

Semiconductor equipment engineers, usually mechanical engineers or electrical engineers, have some of these same purposes in mind when they install pressure transducers directly on semiconductor tools, with the additional goal of granting the tool operator control over the pressures of incoming gas and in the process chamber.

Glew Engineering Consulting Inc.
240 Pamela Drive, Mountain View, CA 94040, USA

Wednesday, May 13, 2020

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 

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.

Principles of Semiconductor Devices

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.

Topics Include -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.

    Saturday, May 09, 2020

    LM3445 - TRIAC dimmable offline LED driver

    Conventional TRIAC dimmers are designed to interface to a resistive load (halogen or incandescent bulb), while today's LED driver solutions interfaced to a standard wall dimmer produce 120 Hz flicker of the LED and/or do not allow 100:1 dimming.

    LM3445 - TRIAC dimmable offline LED driver

    The LM3445 provides a constant current for illuminating high power LEDs and includes a TRIAC . The LM3445 contains all the necessary circuitry to build a line-powered (mains powered) constant current LED driver whose output current can be controlled with a conventional TRIAC dimmer.

    LM3445 - TRIAC dimmable offline LED driver

    Thermal shutdown limits total power dissipation by turning off the output switch when the IC junction temperature exceeds 165°C. After thermal shutdown occurs, the output switch doesn ’t turn on until the junction temperature drops to approximately 145°C

    Monday, May 04, 2020

    Plessey Semiconductors - CMOS IC Solutions

    British electronics company which design and develop Semiconductor Chip Solutions like RF components, data converters, power regulators, imaging sensors, programmable DSPs and special ASICS.

    Plessey Semiconductors - CMOS IC Solutions

    Highlights of Services
    • In-house development team
    • RF, Mixed Signal and High Performance Analogue
    • Full custom / Semi-custom IC design service
    • Process design Kits (PDK) Development and Support
    • Characterization, Modelling and ESD

    EPIC Sensor technology

    EPIC Sensor technology

    A innovative  sensor technology that measures changes in an electric field in a similar way to a magnetometer detecting changes in a magnetic field. The EPIC sensor, which requires no physical or resistive contact to make measurements.....

    Plessey Semiconductors Ltd
    Plymouth Tamerton Road, Roborough, Plymouth, Devon, United Kingdom PL6 7BQ.

    Friday, April 10, 2020

    CD4060 Binary Counter Divider Oscillator

    The CD4020BC, CD4060BC are 14-stage ripple carry binary counters, and the CD4040BC is a 12-stage ripple carry binary counter. The counters are advanced one count on the negative transition of each clock pulse. The counters are reset to the zero state by a logical "1" at the reset input independent of clock.

    CD4040BC, 12-Stage Ripple Carry Binary Counters
    CD4060BC, 14-Stage Ripple Carry Binary Counters


    CD4060 - 14-Stage Ripple Carry Binary Counters
    you can also use a crystal between pin 10 and 11 with two caps 22pF from 10, 11 to gnd and a 10M resistor between 10 and 11 in place of R C network for more precision.

    Thursday, April 09, 2020

    TDA5145 Brushless DC motor drive circuit

    TDA5145 is a bipolar integrated circuit used to drive3-phase brushless DC motors in full-wave mode. The device is sensorless (saving of 3 hall-sensors) using the back-EMF sensing technique to sense the rotor position.It includes bidirectional control, brake function and has a special circuit built-in to reduce the EMI (soft switching output stages)

    TDA5145 Brushless DC motor drive circuit

    TDA5145 offers a sensorless three phase motor drive function. It is unique in its combination of sensorless motor drive and full-wave drive. The TDA5145 offers protected outputs capable of handling high currents and can be used with star or delta connected motors. It can easily be adapted for different motors and applications.

    TDA5145 Brushless DC motor drive circuit

    Full-wave driving of a three phase motor requires three push-pull output stages. In each of the six possible states two outputs are active, one sourcing (H) and one sinking(L). The third output presents a high impedance (Z) to the motor, which enables measurement of the motor back-EMF in the corresponding motor coil by the EMF comparator at each output. The commutation logic is responsible for control of the output transistors and selection of the correct EMF comparator. In Table 1 the sequence of the six possible states of the outputs has been depicted.

    The zero-crossing in the motor EMF (detected by the comparator selected by the commutation logic) is used to calculate the correct moment for the next commutation,that is, the change to the next output state. The delay is calculated (depending on the motor loading) by the adaptive commutation delay block.

    Thursday, April 02, 2020

    LM311 - Voltage Comparator

    The LM111, LM211 and LM311 are voltage comparators that have input currents nearly a thousand times lower than devices like the LM106 or LM710. They are also designed to operate over a wider range of supply voltages: from standard ±15V op amp supplies down to the single 5V supply used for IC logic.

    LM311 - Voltage Comparator

    LM311 - Voltage Comparator

    Both the inputs and the outputs of the LM111, LM211 or the LM311 can be isolated from system ground, and the output can drive loads referred to ground, the positive supply or the negative supply. Offset balancing and strobe capability are provided and outputs can be wire ORed.
    • Operates from single 5V supply
    • Input current: 150 nA max. over temperature
    • Offset current: 20 nA max. over temperature
    • Differential input voltage range: ±30V
    • Power consumption: 135 mW at ±15V
    Related Resources -

    Voltage Comparator Information And Circuits

    This page provides basic information about voltage comparator integrated circuits and is to act as reference material for other circuits. The circuits shown are based on the LM339 Quad Voltage Comparator chip or the LM393 Dual Voltage Comparator chip. These devices are functionally the same. The LM311 Voltage Comparator can be used for these applications as well but it also has a number of unique features.

    Comparators and Schmitt Triggers

    An LM311 in a comparator circuit is shown at the right, with the pin numbers for the connections. The open-collector output is at pin 7, and the ground for this transistor is at pin 1. It is shown pulled up to the logic voltage of +5 with a 1k resistor, which is typical. The output of the LM311 can sink 8 mA. A comparator's output is essentially binary, YES or NO.

    Monday, February 17, 2020

    Introduction to Mechatronics

    Introduction to Mechatronics and Measurement Systems. This text provides comprehensive coverage of the field of mechatronics for mechanical, electrical and aerospace engineering majors. The author presents a concise review of electrical circuits, solid-state devices, digital circuits, and motors.

    Mechatronics and Measurement Systems

    Mechatronics design considerations are presented throughout the text and in Design Example. The text's numerous illustrations, examples, class discussion items, and chapter questions provide an opportunity to understand and apply concepts.

    Introduction to Mechatronics

    Online video demonstration available for viewing. The clips show and describe electronic components, mechatronic device and system examples, and laboratory exercise demonstrations.

    Mathcad and Matlab files for performing analyses throughout the book. The files can be downloaded and edited to perform similar and expanded analyses.

    Dr. David G. Alciatore and Michael B. Histand of the Colorado State University in Mechanical Engineering have books and info for Robotics and Mechatronic Students.

    Monday, February 10, 2020

    Cadence Design Systems and OrCAD

    Cadence RF Design Methodology Kit enables customers to rapidly address wireless opportunities by addressing system-level, verification and IC parasitic challenges.

    Cadence Design Systems and OrCAD

    Cadence PSpice A/D and Advanced Analysis - Spice-based simulator for system design. It simulates complex mixed-signal designs containing both analog and digital parts, and it supports a wide range of simulation models such as IGBTs, pulse width modulators, DACs, and ADCs.

    Cadence Design Systems and OrCAD

    Cadence OrCAD Capture and Capture CIS 

    Schematic design solution, supporting both flat and hierarchal designs from the simplest to the most complex. Seamless bi-directional integration with OrCAD PCB Editor enables data synchronization and cross-probing/placing between the schematic and the board design.

    Cadence Tutorial for VLSI Design

    This site contains a complete on-line tutorial for a typical bottom-up design flow using CADENCE Custom IC Design Tools (version 97A). The examples were generated using the HP 0.6 um CMOS14TB process technology files, prepared at North Carolina State University (NCSU) and made available through MOSIS.

    Monday, February 03, 2020

    ADS7816 - 12-Bit High Speed Sampling AD

    The ADS7816 is a 12-bit, 200kHz sampling analog to- digital converter. It features low power operation with automatic power down, a synchronous serial interface, and a differential input. The reference voltage can be varied from 100mV to 5V, with a corresponding resolution from 24mV to 1.22mV. - From TI Applications

    ADS7816  - 12-Bit High Speed A/D Converter

    Low power, automatic power down, and small size make the ADS7816 ideal for battery operated systems or for systems where a large number of signals must be acquired simultaneously. It is also ideal for remote and/or isolated data acquisition.

    ADS7816 - 12-Bit High Speed Sampling AD

    12-Bit High Speed Micro Power Sampling Analog-to-Digital converter

    The ADS7816 is a classic successive approximation register (SAR) analog-to-digital (A/D) converter. The architecture is based on capacitive redistribution which inherently includes a sample/hold function.

    The converter is fabricated on a 0.6µ CMOS process. The architecture and process allow the ADS7816 to acquire and convert an analog signal at up to 200,000 conversions per second while consuming very little power

    Saturday, January 18, 2020

    Beyond Logic - Interfacing the PC

    The site started in 1995 under the name of Interfacing the PC and was moved to beyondlogic.org on the 29th February 2000 where it has cemented itself as an established, up to date source of non-biased information.

    Beyond Logic - Interfacing the PC

    Beyond Logic includes detailed information on Universal Serial Bus, Serial Ports (RS232), Parallel Ports (SPP/ECP/EPP/IEEE1284), Device Drivers and more.

    Beyond Logic - Interfacing the PC

    Falcom FSA03 Smart Antenna with uBlox 5 GPS Chipset

    The Falcom FSA03 GPS module is an extremely cost effective GPS solution for embedded systems. the FSA03 includes an uBlox 5 single chip GPS module integrated with a Sarantel quadrifilar helix antenna to make a tidy single board solution.

    The Old Beyond Logic Site - Ethernet & TCP/IP Interfaces, RS-232 Interfacing and Universal Serial Bus Reference pages.

    Feedback and Temperature Control

    Excellent Online Educational Pages at Exeter. Students and Teachers can get ideas on how to enhance and enrich the Science Education Process.

    e-Learning Resources - Physics at Exeter

    A Sound understanding of Physics and Chemistry is needed for stepping into “Electricity and Magnetism”. We have to move young minds into Electronics even before High School, as a part of Science itself.

    e-Learning Resources – Physics at Exeter
    • Practical Electronics II and Electronics for Measurement Systems
    • Feedback and Temperature Control
    • Computer Interfaces for Instrumentation Systems
    • Troubleshooting Op-Amp Circuits
    Troubleshooting Op-Amp Circuits

    The ability to diagnose and cure problems in a systematic manner is an exceptionally valuable skill. In PHY2028 students are given a heap of components, a breadboard, and measuring equipment.

    Feedback and Temperature Control

    System Model, Types of Feedback Control, On-Off Control, Proportional+Derivative Control, Proportional+Integral+Derivative Control, Proportional+Integral Control, Third-Order Systems..

    Joar Falstad - Low cost industrial IO

    Combine standard Industrial I/O cards and a 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

    Joar Falstad - Low cost industrial IO

    AD/DA Conversion and Data Acquisition 

    Latest USB interface and the one of the first ISA interface boards we used in mid 90's  made easy. Users : laboratories & more. 

    Jo Tech Service
    Lykkmarka 53, 7081 Sjetnemarka, 047 Norway