H Bridge Circuit Diagram Dc Motor. 10 illustrates the use of a motor power switch to turn off a generic h bridge circuit. Why use an h bridge.
These circuits can be designed such that they can be completely separate boards reusable from project to project. H bridge dc motor controller circuit. Based on the above schematics simply switch motor voltage off change direction then motor voltage back on.
That is an h bridge allows a microcontroller logic chip or remote control to electronically command the motor to go forward reverse brake and coast.
This is easily demonstrated by applying a 9 volt battery to the leads of a small motor and then switching the terminals to change directions. H bridge motor control circuit using l293d ic the ic lm293d consists of 4 ip pins where pin2 and 7 on the left side of the ic and pin 10 and 15 on the right side of the ic. This is easily demonstrated by applying a 9 volt battery to the leads of a small motor and then switching the terminals to change directions. Based on the above schematics simply switch motor voltage off change direction then motor voltage back on.