Patent ID: 9729057
Date: 2017-08-08
CPC Classifications: H02M,Y02B

Claim:
1. A power supply circuit comprising: a transistor coupled to a power source and configured to provide current to a load connected to an output of the power supply circuit; an error amplifier having an input operably connected to the output of the power supply circuit and an output configured to provide an indication of voltage at the output of the power supply circuit; a comparator having an input operably connected to the output of the error amplifier and an output configured to provide a comparison result of the indication of the voltage and an indication of an amount of the current provided by the transistor; a capacitor connected to a potential lower than the power source and configured to compensate the output of the error amplifier; a first switch connected between the output of the error amplifier and the capacitor; a voltage source configured to provide voltage at approximately a nominal voltage of the output of the error amplifier; a second switch connected between the capacitor and the voltage source; and a controller operably connected to the output of the comparator and to a gate of the transistor, the controller configured to: