65W GaN PD charger

Release time:

2023-06-16 07:57

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PROJECT INTRODUCTION
This solution provides a 65W charger based on GaN device. Thecontroller is based on Champion's Dr. flyback, which integrates ahigh-side mos to achieve ZVS. High switching frequency with GaNdevice to achieve higher power density.
 
DESIGN SPECIFICATION
Input Voltage 90Vac~264Vac
Output Voltage 5V/9V/2V/5V/20V
Rated Power 65W
Switching Frequency 50KHz~250KHz
System Efficiency Peak 93.8%

 

FEATURES

· Control strategy is better than traditional QR and ACF, high side & low sideMOSFET ZVS operation;

· Controller with built-in high-side MOS, simple control circuit, high systemreliability and low cost;

· FM & PWM mode to improve efficiency

 

MAIN TOPOLOGY

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MAIN DEVICES
 
Function Part Number Brand
Input Fuse 044303.5 Littelfuse
GaN FET DTA E601513SEO Delta
Rectifier Diode SRT1ONO47LD56TR-G Sanrise
Controller Dr.flyback Champion
Output Filter Capacitor SVZTEM221E09EOORA Aishi

 

 EFFICIENCY DATA

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实测结果和⼯作波形

110V 满载 原边主管ZVS

 

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230V 满载原边主管ZVS

 

实测结果和⼯作波形

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测试条件:230VAC输入 20V/325A输出

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65W GaN PD charger

2023-06-16