H bridge motor driver circuit


Posted on Feb 5, 2014

The circuit given here is of a simple H bridge motor driver circuit using easily available components. H Bridge is a very effective method for driving motors and it finds a lot of applications in many electronic projects especially in robotics. The circuit shown here is a typical four transistor H Bridge. The diodes D1 to D4 provide a safer path f


H bridge motor driver circuit
Click here to download the full size of the above Circuit.

or the back emf from the motor to dissipate and thus it protects the corresponding bipolar transistors from damage. Resistors R1 to R4 limit the base current of the corresponding transistors. Working of this circuit is very easy to understand. When terminal D is grounded and A is pulled to +Vcc, transistors Q1 and Q4 will be on and current passes through the motor from left to right. When terminal B is grounded and C is pulled to +Vcc, transistors Q3 and Q2 will be on and current passes through the motor from right to right making the motor to rotate in the opposite direction.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Tin Can Waveguide WiFi Antenna
Digital Clock
Keypad Combination Lock circuit
Timing within the one-chip computer Counter and interrupt system
hygrometer
synopsis
144mhz 2m converter
Seismic detectors
Fred Nachbaurs Theremax modifications
remote shift light
12 volt power supply circuit using LTM4096 IC
Homemade tablet CarPC
CD71061 holiday lights ASIC
SF04E emission circuit diagram composed SF04B



Top