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Mitigation of Current Distortion for GaN-Based CRM Totem-Pole PFC Rectifier With ZVS Control
- Source :
- IEEE Open Journal of Power Electronics, Vol 2, Pp 290-303 (2021)
- Publication Year :
- 2021
- Publisher :
- IEEE, 2021.
-
Abstract
- The GaN-based critical conduction mode (CRM) totem-pole power factor correction (PFC) converter with full-line-cycle zero voltage switching (ZVS) is a promising candidate for high-efficiency front-end rectifiers. However, the input current can be degraded by line-cycle current distortion and ac line zero-crossing current spikes, and maintaining reliable ZVS control is difficult in noise-susceptible high-frequency environments. In this paper, a detailed analysis of the current distortion issues in a GaN-based CRM totem-pole PFC with digital ZVS control is provided, and effective approaches are proposed to mitigate different kinds of current distortion and ensure stable ZVS control under high-frequency operation. The proposed solutions have the advantages of straightforward implementation and do not increase the control complexity. The current distortion issues are demonstrated in two GaN-based CRM totem-pole PFC prototypes, a 1.5 kW PFC for data centers and a 100 W PFC in a 6.78 MHz wireless charging power supply for consumer electronics. The proposed methods are experimentally verified with effective mitigation of the current distortion and improvement of the converter power efficiency.
- Subjects :
- Computer science
business.industry
Power factor
Inductor
Power (physics)
GaN
TK1-9971
Rectifier
CRM
data centers
totem-pole PFC
Distortion
Electronic engineering
Wireless
Electronics
Electrical engineering. Electronics. Nuclear engineering
current distortion
business
Electrical efficiency
ZVS control
Subjects
Details
- Language :
- English
- ISSN :
- 26441314
- Volume :
- 2
- Database :
- OpenAIRE
- Journal :
- IEEE Open Journal of Power Electronics
- Accession number :
- edsair.doi.dedup.....72ef6d4a265ed6c1af7f761e7c3b29ef