Patent ID: 9716399
Date: 2017-07-25
CPC Classifications: H02J

Claim:
1. A vehicle charger, comprising: a power supply device configured to change an input voltage into a voltage required to charge a portable device and output the changed voltage; a communication module configured to receive a communication signal from the portable device, the communication signal including information indicating at least one of a voltage and a current, required to charge the portable device; a reference changing unit configured to generate at least one of a reference voltage and a reference current based on the at least one of the voltage and the current indicated in the communication signal; a compensator configured to generate a compensation signal based on a result obtained by comparing the at least one of the reference voltage and the reference current with at least one of a sensed voltage and a sensed current, which are obtained by sensing at least one of an output voltage of the power supply device and a current supplied from the power supply device to the portable device; a controller configured to generate a gate driving signal according to the compensation signal; and a gate driver configured to generate a gate voltage for controlling switching operation of the power supply device according to the gate driving signal.