SR Control With Zero Current Detection Delay Compensation for GaN CRM Totem-Pole PFC Rectifier

被引：8
|
作者：
Yang, Yong [1 ]
Li, Zhibin [2 ]
Song, Dawei [1 ]
Wang, Shengdong [3 ]
Zhang, Zhiliang [1 ]
Ren, Xiaoyong [1 ]
Chen, Qianhong [1 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Aeropower Sci tech Ctr, Nanjing 211116, Peoples R China
[2] Joulwatt Technol Co Ltd, Hangzhou 310012, Peoples R China
[3] Nanjing Elect Devices Inst, Nanjing 210016, Peoples R China
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2023年 / 38卷 / 06期
关键词：
Delays; Inductors; Switches; Zero voltage switching; Distortion; Control systems; Topology; Critical conduction mode (CRM); synchronous rectifier (SR); total harmonic distortion (THD); totem-pole power factor correction (PFC); zero current detection (ZCD) delay; RANGE; TIME;
D O I：
10.1109/TPEL.2023.3259421
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
An synchronous rectifier (SR) control with zero current detection (ZCD) delay compensation is proposed to reduce the high reverse inductor current and input current distortion caused by the ZCD delay in critical mode totem-pole power factor correction (PFC). The basic idea of the proposed control is to calculate the SR turn-off instant considering the ZCD delay. Accurate operation model in VOT control is analyzed with ZCD delay compensation to realize the proposed control. A prototype of 2 kW GaN CRM totem-pole PFC converter is built to verify the proposed control. The total harmonic distortion (THD) with full load decreases to 3% by mitigating the current distortion caused by the ZCD delay, 1.6% lower than that before compensation. The high reverse inductor current near the zero-crossing of input voltage is avoided since the length of the zero-current platform is shortened by 87.5%. The prototype achieves 99% efficiency at full load (2 kW) and a power density of 120 W/inch(3).
引用
收藏
页码：7059 / 7068
页数：10
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