dc motor

Interfacing DC Motor with 8051 using L293D – AT89C51

In some of the electronics projects you may want to control a DC Motor with 8051 microcontroller. The maximum current that can be sourced or sunk from a 8051 microcontroller is 15 mA at 5v. But a DC Motor need currents very much more than that and it need voltages 6v, 12v, 24v etc, depending upon the type of motor used. Another problem is that the back emf produced by the motor may affect the proper functioning of the microcontroller. Due to these reasons [...]

dc motor

Interfacing DC Motor with PIC Microcontroller using L293D

This tutorial explains " How to interface DC Motor with PIC Microcontroller ? ". DC Motor and L293D We can't drive a DC Motor (depends) directly with a Microcontroller, as DC Motors requires high current and high voltage than a Microcontroller can handle. Microcontrollers usually operates at +5 or +3.3V supply and it I/O pin can provide only up to 25mA current. Commonly used DC Motors requires 12V supply and 300mA current, moreover interfacing DC Motors directly with Microcontrollers may affect [...]


L293D – Quadruple Half H DC Motor Driver

L293 and L293D are quadruple half H Bridge driver having high current capability. It can also be seen as a dual H Bridge driver for driving Motors. L293D can provide currents up to 600mA and L293 can provide currents up to 1A at voltages ranging from 4.5 to 36. Both L293 and L293D are designed to drive inductive loads such as solenoids, relays, dc motors, bipolar stepper motors and other high current or voltage applications. Features Wide range of supply voltage from 4.5 to 36v Separate Input Logic Supply [...]