Monday, 3 December 2018

Club de Arduino – Week 2: Building an H-Bridge

H-bridge prototype on breadboardToday we tried to build an H-bridge to control the motors.

An H-bridge is a circuit that makes it easy to control a motor to go backward or forward, for example from an Arduino.

We used TIP120 and TIP127 transistors and built the following circuit using 5V as VCC:

H-bridge circuit using BJT transistors with diode protection

It did not work.

We are not sure if there was a problem with the connections – or if the circuit design itself as the problem.

What’s next?

Until next time, I will check the connections of the circuit and do some measurements. Eduardo will look at simulations to see if he can find any problems with the circuit there.

We’ll meet up in one week to continue building the robot.

Go back to the overview of Club de Arduino

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