Wednesday, August 10, 2011

Basic Analog for Digital Designers

"There is a long gap between engineering college and mid career in a non-engineering position, but technology marches on so a simple method of keeping abreast with the latest developments is required. This application note starts with an overview of the basic laws of physics, progresses through circuits 1 and 2, and explains op amp operation through the use of feedback principles."

Basic Analog for Digital Designers - Application Note 

Basic Analog for Digital Designers

AN9510.2 October 19, 2004 - This is an Analog Reference for the Embedded Engineer. An Application Note from Intersil Tech Reference.
  1. Basic Physics Laws, Circuit Theorems and Analysis
  2. Ohm’s and Kirchoff’s Laws
  3. Voltage and Current Dividers
  4. Thevenin’s and Norton’s Theorems
  5. Networks in the Feedback Path 
  6. Types of Opamp Configurations
  7. Video Amplifiers 

Some algebra, the basic laws of physics, and the basic circuit laws are adequate to gain an understanding of op amp circuits. By applying these tools to various circuit configurations it is possible to predict performance. Further in-depth knowledge is required to do op amp design, and there are many sources where this knowledge can be obtained. Don’t hesitate to try some of these tricks on your local circuit design engineer, but be aware that it may result in a long lecture about circuit design.

Tuesday, August 09, 2011

MAX1169 ADC and PIC Microcontroller

What is the use of a Robot, which cannot perceive its environment in detail. Where can a Control system be effective, if it does not get a "feedback" about its actions. How could one do Analysis and Research or Verify, when he cannot Measure a parameter with good accuracy and resolution.

ADC are the Eyes and Ears for a uC, this brings the Real world as Numbers within the CPU. Without ADC a uC is like a Frog in the Well and has to create an Imaginary World for himself. That is beyond the scope of Engineering.

MAX1169 ADC and PIC Microcontroller

Bring your favorite PIC Microcontroller to his senses. Give him an ability to Perceive the Reality around him. Get him an Analog to Digital Converter and don't forget to code.

MAX1169 ADC is better than 4 1/2 Digit Value. For me the Intersil chip is a Benchmark. Beyond 5 1/2 Resolution may be needed only for Scientific Research.

I would say, 2 1/2 is like Analog Meters/Bar Graphs, 3 1/2 for Control systems, 4 1/2 for T&M and beyond 5 1/2 is for R&D.

Anantha Narayan delabs

Abstract: This application note describes how to interface a MAX1169 analog-to-digital converter (ADC) to a PIC microcontroller. It includes an example circuit and software for a PIC18F442. The software contains function calls to interface the ADC to the PIC microcontroller using the internal MSSP I²C port at 400kHz.

Interfacing the MAX1169 ADC to a PIC Microcontroller - Maxim

Friday, August 05, 2011

Technical Writing and Support

Proper documentation of product after design include Engineering Documentation, Production and Purchasing Inputs, Service Manuals, Operator Manual, Quick Reference Cards. Charts and Tech Catalogs.

There are more important documentation before you start planning product design. These impact everything else, but we should not get stuck up on Red Tape.

Docs, Notes and Logging are essential and need to be simple. ISO 9000/Agilent - "Document what you do. Do what you document."

LaTeX Equation Editor - Equation Maths

Writing Mathematics on the Internet. Witing equations is difficult in a doc, they have to be font independent, that implies images. Webapps do it well.

LyX – The Document Processor

LyX combines the power and flexibility of TeX/LaTeX with the ease of use of a graphical interface. This results in world-class support for creation of mathematical content (via a fully integrated equation editor) and structured documents like academic articles, theses, and books.

LyX – The Document Processor

Also try AbiWord a free word processing program. Excellent for a wide variety of word processing tasks. Has MathML and LaTex input.
  1. is an open source office suite and has an equation editor which can export formulas in MathML
  2. GtkMathView is a C++ rendering engine for MathML documents.
  3. MathML Software - Editors
LaTeX Equation Editor -Equation Maths

The interactive LaTex equation editor let's you write and download equations in seconds! You can now integrate the sitmo equation editor with iGoogle or your own site. - sitmo

Wednesday, August 03, 2011

Lighting LED Driving Solutions from ROHM

ROHM’s High Efficiency LED Lighting Solutions

ROHM products include DC/DC and AC/DC Converters which are ideal for Consumer LED Lighting. High Efficiency LED Drivers are also in the Product line.

“Uniform, shadow-free light (fluorescent type LEDs) A proprietary design consisting of a large number of medium-power LEDs creates uniform, shadow-free light.”

Lighting LED Solutions OHM

ROHM Semiconductor and Modules. System LSI, discrete components and module products, utilizing the latest in semiconductor technology.

ROHM – Electronic Components

Tuesday, August 02, 2011

TechnoLogismiki - Scientific Software Development

TechnoLogismiki - Scientific Software Development
Greek software company
  • develop and distribute scientific software
  • develop and distribute specialized debugging tools
TechnoLogismiki Works 2008 the most robust solution for Engineers:

Hydraulics: infrastructure networks, culverts, dams, solvers
Hydrology: water budget in catchments and flood flows
Environmental: roadway pollution, mobile emissions model, landfill gas, construction noise
Financial: estimation of engineer's fees for projects and services (in Greek only)

Hackman 9.2 is an advanced hex editor, disassembler and template editor. It comes with cryptography capabilities, decoding with algorithms and a fully-featured editor. You can edit any file, disk drive, RAM process, ZIP drive and more.

Hackman Suite - TechnoLogismiki
With Hackman Hex Editor you can edit any type of file in your hard disk, even your hard disk itself or a process in memory. Data are presented in 6 different ways (modes): ASCII, Hex, Binary, Octal, Decimal and Custom mode. The editor comes with unlimited undo/redo with undo/redo lists, full clipboard control: cut, copy, paste, paste special, clear clipboard, highly sophisticated find and replace, unlimited watches and bookmarks and numerous conversion modes, including Java, C++, VB, ASCII, text and more.

Hackman Suite - TechnoLogismiki

You can always use the Patch Maker, the MS-DOS Executable Maker, Merger/Splitter and Checksums (CRC16/32, MD5, SHA1 and more) to check and / or manipulate files. Embedded cryptographic capabilities (Skipjack, NSA, RCA algorithms), support for macros, inline command bar, numerous plugins and external tools, configurable toolbar, shortcuts and menus, multilingual interface and online help consist a part of the features list.