18KW logistic vehicle charger
Release time:
2023-05-24 11:08
PROJECT INTRODUCTION
This reference design is a solution for logistic vehicle charger withover 700V bus input, which outputs a wide voltage range of 42-60 Vand maximum current 300 A. Phase shift full bridge topology wasdesigned to realize ZVS operation for the main switching MOSFETs.and current doubling rectification reduce the output rectifier devicescurrent stress and also the inductor volume.
DESIGN SPECIFICATION
| Input Voltage | 700Vdc |
| Output Voltage | 42~60Vdc |
| Rated Power | 1800W |
| Switching Frequency | 96% Max |
| System Efficiency | 100KHz |
FEATURES
· 100KHz high frequency, greatly reduce the volume ofinductor and capacitor:
· Simple and reliable transformer driver for both high side and low side MOS.
· Current doubling rectifier, inductor volume reduce by 50% and winding loss reduce to 25%:
· Optimized clamping circuit;
MAIN TOPOLOGY
MAIN DEVICES
| Function | Part Number | Brand |
| Full Bridge MOS | IXFN90N85X | IXYS |
| Rectifier Diode | DSA3001200NA | IXYS |
| Claim Diode | C4D08120A | Wolfspeed |
| MOSFET Driver | IXDN614 | IXYS |
MEASUREMENT RESULTS AND WAVEFORMS
Efficiency vs. Io
Vgs & Vds @ 50A output
200A Vgs&Vds
50A 整流管电压&Ipri&Vgs
Diode voltage & Ipri & Vgs @ 200A output
Output voltage ripple 94mV @ full load
Dynamic: 0% load to 50% load
Start up @ full load
Download related files
File name
Release time
Download
18KW logistic vehicle charger
2023-05-24
official account
Business license