![]() ![]() Using one current source, you can drive current in two directions by closing two switches. In the image above, the load is the M connecting the two sets of switches. How do H bridges work?Īn H-bridge is built of four switches that control the flow of current to a load. This means that a half H-Bridge can apply varying amounts of power to the motor, but can not change the motors direction. How is a half H-bridge different from a full H-bridge?Īs the name implies, a half H-Bridge has half the functionality of a regular H-Bridge. The diodes represented in the H-Bridge are called “fly back diodes.” These diodes provide a path for the current to dissipate when the motor switches from on to off. And it controls the flow of current to a load. An H-bridge is used to drive a load, such as a brushed DC motor, in both directions. The H-bridge is an electronic circuit that looks like the letter H. Shoot through happens when both the High Side and Low Side Power MOSFETs or IGBTs are ON at the same time. Shoot through current usually leads to catastrophic damage in an H Bridge. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |