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- Title
Self-Frequency Tracking for Fixed-Ratio Switch-Capacitors in Data Center Application without Extra Sensors.
- Authors
Du, Yi; Zheng, Jiaming; Chen, Dachuan; Ying, Wucheng; Yue, Fan; Jiang, Chaoqiang; Long, Teng; Liu, Kefu; Qiu, Jian; Zhao, Hui
- Abstract
As research into data centers progresses, the importance of resonant switched-capacitor converters in power supply design becomes more evident. Practical applications reveal that the values of resonant capacitors and inductors may deviate from their nominal values due to various factors, leading to resonant frequency instability. This instability poses a challenge to power electronics technology, affecting system reliability and performance. This paper analyzes the effect of frequency deviation on system functionality, identifies the relationship between output voltage and switching frequency, and proposes a self-tracking frequency strategy to address this issue. Through experimental validation, this approach shows that it maintains synchronization between switching and resonant frequencies, reducing losses associated with frequency misalignment. Simulation and experimental results validate the converter's stable operation and its ability to achieve zero-voltage and zero-current switching.
- Subjects
ZERO current switching; ZERO voltage switching; SERVER farms (Computer network management); POWER electronics; POWER resources; RELIABILITY in engineering; CONVERTERS (Electronics); CAPACITOR switching
- Publication
Electronics (2079-9292), 2024, Vol 13, Issue 11, p2029
- ISSN
2079-9292
- Publication type
Article
- DOI
10.3390/electronics13112029