Patent ID: 9584029
Date: 2017-02-28
CPC Classifications: H02M,Y02B

Claim:
1. An apparatus comprising: a voltage regulation module that controls output voltage of a direct current (“DC”) to DC converter to an output voltage reference over an output current range between an operating condition where output power of the converter reaches a positive power reference and output power of the converter reaches a negative power reference, the converter comprising a bidirectional converter; a positive power regulation module that controls output power of the converter to the positive power reference over a positive constant power range between the output voltage of the converter being at the output voltage reference and output current of the converter being at a positive output current reference; a negative power regulation module that controls output power of the converter to the negative power reference over a constant power range between output voltage of the converter being at the output voltage reference and a maximum negative power limit of the converter; and a constant current module that limits output current to a positive output current reference in a range between a minimum output voltage and output power of the converter reaching the positive power reference.