Systems, apparatuses, and methods to control a bridgeless totem pole power factor correction (pfc) circuit

Abstract

Apparatuses, systems, and methods to control a bridgeless totem pole power factor correction (PFC) circuit are provided. An exemplary method includes providing a PFC circuit comprising switches and providing a PFC controller coupled to the PFC circuit. The PFC controller comprises a voltage rectification circuitry coupled to a voltage sense circuitry, a current rectification circuitry coupled to a current sense circuitry, an analog control circuitry coupled to the voltage rectification circuitry and the current rectification circuitry, and a driving logic circuitry coupled to the analog control circuitry. The analog control circuitry is configured output a pulse-width modulation (PWM) signal based on a voltage sense signal from the voltage rectification circuitry and a current sense signal from the current rectification circuitry. The driving logic circuitry is configured to generate signals based on the PWM signal. The method includes operating a switch of the switches to change states based on the signals.