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3KW Push-Pull DCDC converter

Release time:

2023-05-24 11:30

PROJECT INTRODUCTION

This reference design is a 3KW push-pull converter and Buck DC/DCconverter with input range 20-30Vdc, output 450V-700V.Interleavedparallel push-pull topology reduce current ripple on input capacitor;SiC diode alleviate reverse recovery loss; Buck converter converts thepush-pull output to 450-700V adjustable; Peak current control modewith cycle-by-cycle current limiting function improves the reliability ofthe system.

DESIGN SPECIFICATION

Input Voltage	20Vdc~30Vdc
Output Voltage	450~700Vdc
Rated Power	3000W
Switching Frequency	65KHz
System Efficiency	Peak 92.5%

FEATURES

· Push-pull + Buck designd with wide input/output range;

· Interleaved Push-Pull, smaller current ripple;

· Outputs can be connected in parallel;

· Full protection, including input UVP, output OvP/OCP & power limitingprotection

MAIN TOPOLOGY

MAIN DEVICES

Function	Part Number	Brand
MOSFET	IXFH320N10T2	IXYS
Output Rectifier Diode	C4D08120A	Wolfspeed
MOSFET Driver	IXDN609SIA	IXYS
Output Filter Capacitor	EKP397M2WP45SZSHP	Samxon