Patent ID: 9325245
Filing Date: 2016-04-26
CPC Classification: H02M

Claim Text:
1. A bidirectional isolated DC-DC (direct current to direct current) converter, comprising: a first port; a second port, wherein one of the first port and the second port is selectively used as an input terminal of the bidirectional isolated DC-DC converter, and another of the first port and the second port is used as an output terminal of the bidirectional isolated DC-DC converter correspondingly; a first voltage and current isolated acquisition unit, connected with the first port to sample voltages and currents at the first port and generate a corresponding feedback signal; a second voltage and current isolated acquisition unit, connected with the second port to sample voltages and currents at the second port and generate another corresponding feedback signal; a processing module, connected with the first voltage and current isolated acquisition unit and the second voltage and current isolated acquisition unit, to receive feedback signals generated by the first voltage and current isolated acquisition unit and the second voltage and current isolated acquisition unit, and output corresponding control signals according to the feedback signals; a first filtering-circuit unit, connected to the first port via the first voltage and current isolated acquisition unit; a second filtering-circuit unit, connected to the second port via the second voltage and current isolated acquisition unit; and a bidirectional power-converting module, connected with the processing module, connected to the first port via the first filtering-circuit unit and the first voltage and current isolated acquisition unit, and connected to the second port via the second filtering-circuit unit and the second voltage and current isolated acquisition unit, wherein the bidirectional power-converting module is configured to perform the conversion of different voltages between the first port and the second port according to the control signals outputted from the processing module.