Home page

5KW capacitive load AC_DC charger

Release time:

2023-05-24 14:26

PROJECT INTRODUCTION

The reference design is a peak 5KW AC/DC solution for capacitiveload,with input range 90-264Vac and output OV~700V/7AInterleaved parallel PFC and phase-shift full bridge DC/DC weredesigned to adapt to the wide output voltage range of 0-700V. Tomeet the design spec of high capacitive load, the current loop soft-start was optimized and CC & CV dual control loop was designed toensure the system reliability.

DESIGN SPECIFICATION

Input Voltage	90Vac~264Vac
Output Voltage	700Vdc
Rated Power	5000W
Switching Frequency	PFC: 60KHz; Full Bridge: 100KHz
Rated Load Charging Time	10mF (1s charge from 0-700V)

FEATURES

· MCU control, input power auto-regulate according to different input;:

· 10mF charging form 0 to 700V in 1s;

· Patented current-loop soft-start method, fast power replenishment;

· Online high frequency charging and discharging:

MAIN TOPOLOGY

MAIN DEVICES

Function	Part Number	Brand
Input Fuse	0324040.MXP	Littelfuse
Relay	CHS01-S-112LA	Churod
Input Rectifier	IXTH60N65X2	IXYS
PFC MOS	IXTH60N65X2	IXYS
PFC Diode	C3D10060A	Wolfspeed
Current Sensor	MCA1101-20-5	Aceinna
Full Bridge MOS	IXFH46N65X2	IXYS
Output Rectifier	C5D05770H	Wolfspeed
Driver	IXDN604SIA	IXYS
MCU	SPC1168	Spintrol