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6KW three channels interleaved parallel PFC

Release time:

2023-05-24 13:34

PROJECTINTRODUCTIO

This project is 6KW three channels interleaved parallel PFC, withinput range 176Vac~264Vac, rated output 390Vdc/15.4A. The 3channels 120°interleaved operation significantly reduces highfrequency ripple current on the input DC BUS and the outputcapacitor; Switch frequency is set as 60KHz; Peak efficiency is up to97.6%.

DESIGN SPECIFICATION

Input Voltage	176Vac~264Vac
Output Voltage	390Vdc
Rated Power	6000W
Switching Frequency	60KHz
System Efficiency	97.8%a30% load;97.0%afullload

FEATURES

· Three channels 120' interleaved, smaller input & output current ripple;

· Smaller inductor volume, total volume is only 1/3 of the single PFC;

· Inductor volume is reduced by 66% compared with the traditional 20llow frequency IGBT PFC;

· The loss is evenly distributed and the thermal design is simple;

· Full protection, including input UVLO, output ovP and 2 levels OCP

· Small volume（ 148mm*250mm*50mm）， high power density（50W/inch^3）；

MAIN TOPOLOGY

MAIN DEVICES

Function	Part Number	Brand
Input Rectifier	DSP45-12A	IXYS
PFC MOS	IXTH34N65X2	IXYS
PFC Diode	C3D08060A	Wolfs peed
Driver IC	1X4427N	IXYS
Output Filter Capacitor	EGP687M2WO50SW	IXYS