ACTIVE SHORT-CIRCUIT PROTECTION CIRCUIT FOR VEHICLE, EMB SYSTEM, EPS SYSTEM, AND PROTECTION METHOD

An active short-circuit protection circuit includes: a PWM output switch module connected between an output terminal of a gate drive module and a control terminal of each of lower bridge arm switching transistors of an inverter; a short-circuit protection switch module powered by the battery and converts supplied power into a voltage matching each of the lower bridge arm switching transistors; and a short-circuit protection power supply module connected in series between the short-circuit protection power supply module and the control terminal of each of the lower bridge arm switching transistors, wherein the short-circuit protection switch module is turned on when the voltage of the battery exceeds a specified threshold, to control each of the lower bridge arm switching transistors to be turned on, so that stator windings of the motor are coupled.