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2500W ON BOARD DC/DC

Release time:

2023-05-24 10:36

PROJECT INTRODUTION

The reference design is a 2.5KW on board DC/DC converter with inputvoltage range 200~450Vdc, rated output 12.5V/200A. The maintopology is Boost + full bridge LLC + peak current control synchronousrectifier output.

DESIGN SPECIFICATION

Input Voltage	200vdc-450Vdc
Output Voltage	12.5Vdc
Rated Power	2500KW
System Efficiency	95.6%网25%load:93afull load
Switching Frequency	Boost:100KHz; LLC:80~300KHz

FEATURES

· Boost + peak current control synchronous rectifier LLC:

· High efficiency, peak up to 95.6%:

· Fast response, cycle-by-cycle protection;

· No electrolytic capacitor design, longer life and higher reliability;

· Small volume 145mm200mm*50mm, power density 28W/incha3:

· Full protection, including input OVP & UVP, output ovp & OCP and shortcircuit protection

MAIN TOPOLOGY

MAIN DEVICES

Function	Part Number	Brand
Boost-MOS	IXFH46N65X2	IXYS
Boost Diode	C3D10060A	Wolfspeed
Boost Driver	IXDN604SIA	IXYS
LLC Primary MOSFET	IXFH60N65X2	IXYS
LLC Secondary MOSFET	IXTA340NO4T4-7	IXYS
LLC MOSFET Driver	IXDN604SIA	IXYS