An H-bridge is an electronic circuit which enables DC electric motors to be run forwards or backwards. These circuits are often used in robotics. H-bridges are available as integrated circuits, or can be built from discrete components.
To power the motor ,you turn on two switches thet are diagonally opposed. In the picture to the right, left imageine that the high side left(s1) and low side right(s2) switehes are turned on. The current flow is shown in green. The motor begins to turn in a "positive" direction. So that right imageine,you turn on the high side right(s3) and low side left (s2) switches.The current flows the other direction through the motor and the motor turns in the opposite direction.
ไม่มีความคิดเห็น:
แสดงความคิดเห็น