An H-Bridge allows a DC motor to be controlled clockwise and counterclockwise with simple logic signals.
The H-bridge consists of 4 transistors (2 NPN type and 2 PNP type) which controls the motor by activating pairs of complementary and opposing transistors.
In this project, I used bipolar transistors since they are very inexpensive and work well, but we could very well have used MOSFET transistors if we have a motor that draws more current.
In addition, as it is 5V logic signals that activate the transistors, we can use the PWM to vary the speed of the motor. So, in addition to varying the direction of rotation of the motor, one can vary the speed of the DC motor.
Also, this assembly has the advantage of being isolated from the control system by transistors, so motors can be operated with a supply voltage higher than the control voltage without problem.
In this video we will continue our discovery of the Arduino and our self-training. In this new assembly, I present the electrical diagram to control a DC motor and for this we will need new components which will be the MOSFET transistor and the freewheel diode.
An H-Bridge allows a DC motor to be controlled clockwise and counterclockwise with simple logic signals.
The H-bridge consists of 4 transistors (2 NPN type and 2 PNP type) which controls the motor by activating pairs of complementary and opposing transistors.
In this project, I used bipolar transistors since they are very inexpensive and work well, but we could very well have used MOSFET transistors if we have a motor that draws more current.
In addition, as it is 5V logic signals that activate the transistors, we can use the PWM to vary the speed of the motor. So, in addition to varying the direction of rotation of the motor, one can vary the speed of the DC motor.
Also, this assembly has the advantage of being isolated from the control system by transistors, so motors can be operated with a supply voltage higher than the control voltage without problem.
In this video we will continue our discovery of the Arduino and our self-training. In this new assembly, I present the electrical diagram to control a DC motor and for this we will need new components which will be the MOSFET transistor and the freewheel diode.
No comments:
Post a Comment