A solid state circuit breaker may include a power module, a gate driver, a current sensor, and a controller. Each power module may include two back-to-back MOSFETs with body diodes. The MOSFETs may have opposite orientations and a common source connection within the power module. A current sensor may detect the current, and a controller may determine whether the current exceeds a predetermined threshold. When the current exceeds a predetermined threshold, the controller may transmit a signal to each of the gate drivers to cause each of the gate drivers to output a signal to the back-to-back MOSFETs such that current through the solid state circuit breaker is blocked in both directions.
一种固态断路器,可以包括功率模块、栅极驱动器、电流传感器和控制器。每个功率模块可以包括两个具有体二极管的背靠背MOSFET。MOSFET可以在功率模块内具有相对的取向和公共源极连接。电流传感器可以检测电流,并且控制器可以确定电流是否超过预定阈值。当电流超过预定阈值时,控制器可以向每个栅极驱动器传输信号,以使每个栅极驱动器向背靠背MOSFET输出信号,使得在两个方向上阻断通过固态断路器的电流。
High-power bidirectional solid-state circuit breaker
高功率双向固态断路器
2024-10-22
Patent
Electronic Resource
Chinese
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