Overvoltage protection using a link current sensor

摘要

An example overvoltage protection device (18) includes a switch (30) and a link current sensor (28) that measures current through the switch. The overvoltage protection device is selectively activated by transitioning the switch between an off-state and an on-state. The switch is transitioned from the on-state to the off-state in response to a current measurement from the DC link link current sensor. The current sensor is a DC link current sensor in one example.