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Monday, August 05, 2019

7800 and 7900 Series Voltage Regulators

The LM78XX series of three-terminal positive regulators is available in the TO-220 package and with several fixed output voltages, making them useful in a wide range of applications. Each type employs internal current limiting, thermal shut-down, and safe operating area protection.

7805 is popular for Embedded Systems and 7905 is sometimes used for the Dual Supply needs in such Microcontroller cards with Mixed Design sub-sections like A/D or Opamps.

7812 and 7912 are very popular in powering Traditional Opamp or communications circuits with a stable and reliable Dual Supply.

Power Supplies Section - Here you will find examples of 7824 and 7924 Power supplies.

Fairchild LM7812

In Instrumentation and Industrial Circuits where Size is not a problem and the current or power usage is less. A Mains transformer, bridge regulators, capacitors and these regulators are a time tested low noise and robust system.

SMPS does have EMI-RFI problems, hence use when small sizes are needed and high currents are required. In battery powered devices switching supplies are inevitable as they are power efficient.

Saturday, August 03, 2019

Electrical Safety and Clean Power

This is an educative and important guide for Electrical Equipment Safety. This can be also applied partially to Power Electronics and Home Energy Systems. Electronic Equipment also have to be maintained by Calibrating them and protecting them from environmental parameters like dust, grime, direct sunlight, moisture, humidity, sea wind (brine), corrosive fumes and chemicals. They should not be even placed near machines like a big lathe, sub-sonic or low frequency vibrations.

Electrical Safety Testing Reference Guide

Electrical Safety is a Serious Issue Electrical Safety in the workplace is the most important job of an electrical worker. No matter how much training one has received or how much employers try to safeguard their workers, Electrical Safety is ultimately the responsibility of the electrical worker.

Electrical Safety and Clean Power

Electrical Safety Hazards Handbook

Power Studies, Arc-Flash Hazard Labeling, Data Gathering and Inspection, Engineering Services.

The steps to osha electrical safety

Electrical Design, Lighting and most important Earthing or Grounding. Good Reference Articles and Product Reviews.

Friday, August 02, 2019

Types of Switches in Electronics

Switches are electromechanical devices. The are used to control the  path of current or energy flow. Power switches are used to turn on and off loads. The contacts should be robust and have immunity to  sparking and corrosion. Switches for signals need to be gold plated for low contact resistance and within a sealed enclosure.

Types of Switches in Electronics

Illuminated Rocker and Plain Rocker DPDT switches are popular in Power Boards and Extension Boxes for Mains power switching. Both Phase and Neutral lines are switched ON or OFF. This is not only safe but also reduces sparking.

Friday, July 19, 2019

MunEDA - Enhance Design Performance

They provide solutions in EDA that simplify the circuit design process and enhance the Performance/Yield. They provide the technology for analysis and optimization of yield and performance of analog, mixed-signal and digital designs.

MunEDA - Enhance Design Performance

MunEDA WiCkeD tools are seamlessly integrated into the main industrial standard simulation environments and design frameworks but also support customer specific inhouse simulators and designflows.

BAS - Basic & Sensitivity Analysis

BAS - Basic and Sensitivity Analysis

"WiCkeD Basic delivers a powerful basic feature compilation to enable the circuit designer to do enhanced topology analysis, constraint setup and management as well as different analysis types for circuit performance, parameter sensitivity and correlation."

MunEDA GmbH
Stefan-George-Ring 29 81929 Munich, Germany

Wednesday, July 17, 2019

Rugged Circuits - Design Service

Design and Manufacturing Service for Industrial Embedded Systems for Robust Requirements. Services include component selection, PCB design, prototyping, manufacturing, and distribution.

Rugged Circuits - Design Service

Rugged Circuits - Design Service

Custom control system for an industrial machine

Triple RS485 outputs, graphic LCD display interface with dimmable backlight, 4x4 keypad interface, real-time clock, 8 discrete and protected I/O's, and in-the-field firmware upgrades over USB.

They also have a estore with products related to Ruggeduino (Rugged+Arduino ), including components, kits, Shields. The products like Rugged Motor Driver and Yellowjacket a WiFi microcontroller module, need special mention.

Rugged Circuits LLC
Wayland, Michigan 49348