Bidirectional current limiter based on bidirectional BUCK converter and bidirectional current limiting method thereof

The invention provides a bidirectional current limiter based on a bidirectional BUCK converter and a bidirectional current limiting method thereof. The bidirectional current limiter based on a bidirectional BUCK converter comprises a bidirectional BUCK converter, a current detection circuit and a control circuit. The bidirectional BUCK converter includes a positive-direction BUCK converter and a negative-direction BUCK converter which are in reverse series connection and share one common inductor L. An input end of the current detection circuit is connected with a current input end of the bidirectional BUCK converter. An output end of the current detection circuit is connected with an input end of the control circuit. A control output port of the control circuit is connected with the bidirectional BUCK converter. The bidirectional current limiter has the advantages of simple structure and low cost.