Patent ID: 9584039
Date: 2017-02-28
CPC Classifications: H02M,Y02B

Claim:
1. A regulated AC-DC hybrid rectifier system comprising: an AC-side coupled interphase transformer (IPT) based passive rectifier, wherein the IPT-based passive rectifier comprises a low harmonic rectifier coupled to a diode network, wherein an output of the diode network is an input to a boost stage, wherein the boost stage comprises: a voltage sensor coupled to the output of the boost switch, wherein an output of the voltage sensor is coupled to the PWM controller, wherein the PWM controller is configured to send a PWM control signal to the boost switch to toggle operation of the boost diode; and a first notch filter configured to absorb a first harmonic ripple at 4,400 Hz; a second notch filter configured to absorb a second harmonic ripple at 5,200 Hz, wherein an output of at least one of the first notch filter and the second notch filter is coupled to an input of the low harmonic rectifier.