ML4822 Datasheet ZVS Average Current PFC Controller

Manufacturer: Micro Linear

ML4822 zvs average current pfc controller by Micro Linear - Datasheet Preview

Datasheet Details

Part number	ML4822
Manufacturer	Micro Linear
File Size	201.71 KB
Description	ZVS Average Current PFC Controller
Download	ML4822 Download (PDF)

General Description

The ML4822 is a PFC controller designed specifically for high power applications.

The controller contains all of the functions necessary to implement an average current boost PFC converter, along with a Zero Voltage Switch (ZVS) controller to reduce diode recovery and MOSFET turn-on losses.

The average current boost PFC circuit provides high power factor (>98%) and low Total Harmonic Distortion (THD).

Overview

May 1997 ML4822* ZVS Average Current PFC Controller GENERAL.

Key Features

include undervoltage lockout, overvoltage protection, peak current limiting, and input voltage brownout protection. The ZVS control section drives an external ZVS MOSFET which, combined with a diode and inductor, soft switches the boost regulator. This technique reduces diode reverse recovery and MOSFET switching losses to reduce EMI and maximize efficiency.

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