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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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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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