Patent ID: 9685863
Date: 2017-06-20
CPC Classifications: H02M,Y02B

Claim:
1. A converter, comprising: a PFM (pulse frequency modulation) controller operable for controlling a power output stage in a PFM mode in response to a power stage voltage output generated by the power output stage during a first period of time in which the power output stage is operating in the PFM mode; a PWM (pulse width modulation) controller operable for controlling the power output stage in a PWM mode in response to a power stage voltage output generated by the power output stage during a second period of time in which the power output stage is operating in the PWM mode; and an auxiliary voltage output stage operable for generating an auxiliary voltage during a third period of time wherein the PWM controller is operable for controlling the auxiliary power output stage in response to the auxiliary voltage during the third period of time.