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Code for Dot Matrix display using PIC16F877A

By on April 5, 2012 in Microcontroller, PIC

Here is the code which i used for dot matrix display using ccs c compiler you can download it from here also http://www.mediafire.com/download.php?m6s2871o9bwxfuj

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SCR DC Drives Basics and Circuits

By on September 4, 2011 in D.C Brushed Motor, Motor Control, Power Electroincs

Which Circuits are used in this Drive Since the introduction of microcontrollers and microprocessors drive technology of motors and power supply have change drastically. Today most of the drives are made of latest microcontroller from arm 32 bit and other high end microcontroller. Since I am in power electronics and embedded electronics industry I can [...]

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Creating PWM with op amp and 555 timer

By on August 13, 2011 in Analog

Here are some of the example circuits and tutorials for generating pwm using 555 timer ic and op amp ic http://www.maxim-ic.com/app-notes/index.mvp/id/3201 http://www.instructables.com/id/OP-AMP-PWM/ http://www.instructables.com/id/Simple-and-dirty-Pulse-Width-Modulation-PWM-Wi/ http://www.dprg.org/tutorials/2005-11a/index.html http://www.williamson-labs.com/555-circuits.htm

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Scr Phase Angle Control and triggering using PIC16F877A

By on August 3, 2011 in Microcontroller, PIC, Power Electroincs

It has been very difficult to control power electronics with proper tool selection and knowledge of driving it i would like to share some knowledge to trigger scr with the help of 16f877a. since i have to control firing angle of scr with help of pic i have to fully isolate the power side and [...]

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Dot Matrix moving display using pic16f877A & 74hc595

By on July 31, 2011 in Microcontroller, PIC

This dot matrix moving display message board will be of 8, 5X7 dot matrix which will be able to display 7 character at a time. this is a stand alone system which means we can change the string without help of any other host computer of pc. you can able to change the string with [...]

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4 Ampere Stepper Motor Driver

By on July 31, 2011 in Motor Control, Stepper Motor

here is the schematic of 4 ampere stepper motor driver it comes with pwm chopping by which we can control the current flowing. The ic’s i have used for this are below listed L297(stepper translator) L6203(5 A max) 7805(5 volt linear regulator) 40106(inverting Schmitt trigger) mct2e or 4n33 opto coupler (for isolating pulse and direction) [...]

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Welcome To Embedded Labs

By on July 31, 2011 in Microcontroller

Welcome To Embedded Labs

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