Self-Frequency Tracking for Fixed-Ratio Switch-Capacitors in Data Center Application without Extra Sensors

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...

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Bibliographic Details
Published in:Electronics (Basel) 2024-06, Vol.13 (11), p.2029
Main Authors: Du, Yi, Zheng, Jiaming, Chen, Dachuan, Ying, Wucheng, Yue, Fan, Jiang, Chaoqiang, Long, Teng, Liu, Kefu, Qiu, Jian, Zhao, Hui
Format: Article
Language:English
Subjects:
Capacitors
Circuit components
Circuits
Computer centers
Data centers
Efficiency
Electric potential
Electric transformers
Electrical equipment and supplies industry
Electronic components industry
Energy
Frequency deviation
Frequency stability
Inductors
Misalignment
Permeability
Power electronics
Resonant frequencies
Sensors
Switching
Synchronism
System reliability
Tracking
Voltage
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Summary: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.
ISSN:2079-9292
2079-9292
DOI:10.3390/electronics13112029