Design Gopher

TechLib - Electronic Experimenter Records

2009-07-09T07:24:00.000+05:30

TechLib - Electronic Experimenter Records

A technical library for the hobbyist and experimenter. - Charles Wenzel

World's Smallest Geiger Counter
Karen's Mic. Input Telemetry Device
Temperature Controlled Ovens
Two-Transistor Atomic Frequency Standard
Super-Sensitive Ionization Chamber
Cockcroft-Walton Diode Voltage Multipliers

CE - Conformite Europeenne - Safety Standards

2009-07-08T07:49:00.000+05:30

CE - Conformite Europeenne - Safety Standards

"The CE marking (also known as CE mark) is a mandatory conformity mark on many products placed on the single market in the European Economic Area (EEA)."

ASTM International - Technical Standards Organization

2009-07-07T16:46:00.000+05:30

ASTM International - Technical Standards Organization

"ASTM International is one of the largest voluntary standards development organizations in the world-a trusted source for technical standards for materials, products, systems, and services."

"ASTM International, originally known as the American Society for Testing and Materials (ASTM), was formed over a century ago...."

CENELEC - Electrotechnical Standardization

2009-07-07T15:32:00.000+05:30

CENELEC - Electrotechnical Standardization

"CENELEC's mission is to prepare voluntary electrotechnical standards that help develop the Single European Market/European Economic Area for electrical and electronic goods and services removing barriers to trade, creating new markets and cutting compliance costs."

CENELEC - Technical Support

ASQ - Resources for the Quality Professional

2009-07-07T11:10:00.000+05:30

ASQ - Resources for the Quality Professional

"ASQ was born in the days when "quality control" usually meant ensuring that manufactured products were free of defects...."

First steps to Build Quality into your Manufacturing Process.

Malcolm Baldrige - Leadership Lessons

2009-07-07T10:12:00.000+05:30

Malcolm Baldrige - Leadership Lessons

"While the Baldrige Award and the Baldrige recipients are the very visible centerpiece of the U.S. quality movement, a broader national quality program has evolved around the award and its criteria..."

History of the Malcolm Baldrige National Quality Award

Related

ISQED - Design and Design Automation

2009-07-06T14:40:00.000+05:30

ISQED - Design and Design Automation

"ISQED is the pioneer and leading conference dealing with design for manufacturability and quality issues, front to back."

Targetted Audience - Researchers, Developers, and Users of EDA/TCAD Tools & Design Flows and Methodologies

ISQED Tweeter

Cadelec Electrical Circuit Design and Engineering Software

2009-06-11T10:19:00.000+05:30

Cadelec Electrical Circuit Design and Engineering Software

CADELEC started in 1986 as a custom development for a major automotive parts manufacturer.

International distribution and localization started in 1988, when CADELEC was first exhibited at a trade show in Paris, France. and Siscad SA was formally incorporated in Switzerland.

Some of the most prestigious names in the electrical industry have adopted CADELEC as their standard for electrical design throughout Europe, the Americas, Africa and Asia.

SolidWorks 3D Mechanical CAD

2009-06-11T09:38:00.000+05:30

SolidWorks 3D Mechanical CAD

SolidWorks is a 3D mechanical CAD (computer-aided design) program that runs on Microsoft Windows and was developed by SolidWorks Corporation - now a subsidiary of Dassault Systèmes, S. A. (Suresnes, France). It is currently one of the most popular products in the 3D mechanical CAD market. - SolidWorks - Wikipedia

AutoCAD, DWG, DXF, eDrawings viewer
BluePrint Now - Free DWG Web Editor
Drawings Now - Share CAD Design Online!

Autodesk - 2D and 3D CAD

2009-06-11T09:01:00.000+05:30

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.

AutoCAD - Wikipedia

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.

Online learning AutoCAD - 2D Tutorials

Circuit Cellar - The Magazine for Computer Applications

2009-06-02T14:20:00.000+05:30

Circuit Cellar - The Magazine for Computer Applications

Since its founding in 1988, Circuit Cellar has delivered exactly what its paying subscribers demand-intensive, exploratory articles about hardware and software methods for embedded-control systems.

Circuit Cellar has always been written by engineers, for engineers.

IEEE - Technologies - Electrical - Standards and Publications

2009-06-02T10:10:00.000+05:30

IEEE - Technologies - Electrical - Standards and Publications

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

The full name of the IEEE is the Institute of Electrical and Electronics Engineers, Inc., although the organization is referred to by the letters I-E-E-E and pronounced Eye-triple-E.

IEEE at Wikipedia

"IEEE is one of the leading standards-making organizations in the world. IEEE performs its standards making and maintaining functions through the IEEE Standards Association (IEEE-SA). "

ISA - Instrumentation Systems and Automation Society

2009-06-02T09:37:00.000+05:30

ISA - Instrumentation Systems and Automation Society

Founded - 1945, ISA is a leading, global, nonprofit organization that is setting the standard for automation by helping members and other professionals worldwide. Research Triangle Park, North Carolina.

Certifies industry professionals; provides education and training; publishes books and technical articles; and hosts the largest conference and exhibition for automation professionals in the Western Hemisphere.

automationfederation.org - founding sponsor

Instrumentation, Systems, and Automation Society, formerly the Instrument Society of America, a professional organization for instrument engineers.

AnalogHome.Com - Steven C. Hageman

2009-06-02T08:50:00.000+05:30

AnalogHome.Com - Steven C. Hageman

Electronic design services for Industrial, OEM and Consumer clients in the areas of: Analog, RF, Digital, Microcontroller, Firmware, Software, Power Supply and high performance PCB board design.

Steve C. Hageman

ISO - International Organization for Standardization

2009-05-08T14:25:00.000+05:30

ISO - International Organization for Standardization

ISO is a network of the national standards institutes of 157 countries, on the basis of one member per country, with a Central Secretariat in Geneva, Switzerland, that coordinates the system.

ISO 9000 / ISO 14000

American National Standards Institute - ANSI

2009-05-08T11:40:00.000+05:30

American National Standards Institute - ANSI

The American National Standards Institute (ANSI) coordinates the development and use of voluntary consensus standards in the United States and represents the needs and views of U.S. stakeholders in standardization forums around the globe.

Founded - October 19, 1918

ANSI Online, ANSI eStandards Store (eSS), NSSN: A National Resource for Global Standards

ANSI Reporter, ANSI Congressional Standards Update, What's New, Standards Action.

NIST - National Institute of Standards and Technology

2009-05-08T11:20:00.000+05:30

National Institute of Standards and Technology

Information

NIST- Wikipedia

The National Institute of Standards and Technology (NIST), known between 1901-1988 as the National Bureau of Standards (NBS), is a non-regulatory agency of the United States Department of Commerce's Technology Administration. The institute's mission is to promote U.S. innovation and industrial competitiveness by advancing measurement science, standards, and technology in ways that enhance economic security and improve quality of life.

Kids, General public.

Safety and Health Standards - CSA

2009-05-07T11:20:00.000+05:30

Safety and Health Standards - CSA

The Canadian Standards Association is a not-for-profit membership-based association serving business, industry, government and consumers in Canada and the global marketplace.

The Canadian Standards Association is a not-for-profit membership-based association serving business, industry, government and consumers in Canada and the global marketplace.

Underwriters Laboratories - Product Compliance

2009-05-07T10:44:00.000+05:30

Underwriters Laboratories - Product Compliance

UL is the trusted source across the globe for product compliance. Benefiting a range of customers - from manufacturers and retailers to consumers and regulating bodies - we've tested products for public safety for more than a century.

Underwriters Laboratories Inc. (UL) is an independent, not-for-profit product safety certification organization that has been testing products and writing Standards for Safety for over a century.

NEMA - National Electrical Manufacturers Association

2009-05-07T08:00:00.001+05:30

NEMA - National Electrical Manufacturers Association

NEMA, created in the fall of 1926 by the merger of the Electric Power Club and the Associated Manufacturers of Electrical Supplies, provides a forum for the standardization of electrical equipment, enabling consumers to select from a range of safe, effective, and compatible electrical products.

FreePCB - PCB editor

2009-05-04T06:46:00.000+05:30

FreePCB - PCB editor

FreePCB is a free, open-source PCB editor for Microsoft Windows, released under the GNU General Public License. It was designed to be easy to learn and easy to use, yet capable of professional-quality work. It does not have a built-in autorouter, but it can use the FreeRoute web-based autorouter at freerouting.net. Some of its features are:

1 to 8 copper layers
Board size up to 60 inches by 60 inches
Uses English or metric units (i.e. mils or mm) for most functions.
Footprint libraries courtesy of Ivex Design International Inc.
Copper fill areas
Footprint Wizard and Footprint Editor for creating or modifying footprints
Imports and exports PADS-PCB netlists
Exports extended Gerber files (RS274X) and Excellon drill files
Design rule checker
Autosave

Example - Logic Analyzer: This is an open-source logic analyzer called MiniLA contributed by Bob Grieb of the User Forum. The image on right is the Logic Analyzer PCB.

FaultLink International - Electrical Power Diagnostics

2009-04-11T15:40:00.000+05:30

FaultLink International - Electrical Power Diagnostics

"Faultlink International is a fully independent broad-range electrical/electronics fault investigation and analysis consultancy."

Marc's Technical Pages - knowledge-base of Faultlink International

TDA5140A Brushless DC Motor Drive - NXP

2009-04-09T15:25:00.000+05:30

TDA5140A Brushless DC Motor Drive - NXP

"The TDA5140A is a bipolar integrated circuit used to drive 3-phase brushless DC motors in full-wave mode. "

Features Include -

Full-wave commutation without position sensors.
Three push-pull outputs: 0.8 A output current.
Thermal protection - Flyback diodes
Tacho output without extra sensor

AN93014_EIE; TDA5140AT with Position Indicator Page-In & Speed Control - PDF

NXP Semiconductors - NXP - Application Notes

NXP (for Next eXPerience) semiconductor company founded by Philips.

4-20mA Conditioning - XTR101 TI BB

2009-04-09T13:02:00.000+05:30

4-20mA Conditioning - XTR101 TI BB

These are Burr Brown Devices from TI. The BB Chips are excellent devices and High Precision, but a bit more expensive. These can be used when customer demands a Higher Quality and Precision. These are good for High Reliability Industrial Instrumentation. - delabs

From TI Data Sheets -

The XTR101 is a microcircuit, 4-20mA, two-wire transmitter containing a high accuracy instrumentation amplifier (IA), a voltage-controlled output current source, and dual-matched precision current reference.

The XTR106 is a low cost, monolithic 4-20mA, two-wire current transmitter designed for bridge sensors. It provides complete bridge excitation (2.5V or 5V reference), instrumentation amplifier, sensor linearization, and current output circuitry.

The XTR115 and XTR116 are precision current output converters designed to transmit analog 4-to-20mA signals over an industry standard current loop. They provide accurate current scaling and output current limit functions.

Eurotherm Invensys Training Tutorials

2009-04-09T11:20:00.000+05:30

Eurotherm Invensys Training Tutorials

Articles on Temperature and Power Control Technology in Industry and Research, by Arthur Holland, Holland Technical Skills, Oakville ON Canada.