Efficient Talkative Power Conversion With Quasi-Square-Wave Zero-Voltage Switching Hysteretic Current Control

Simultaneous power and data transmission is possible by data injection into control signals of power converters without additional hardware. In this letter, a modified analog hysteretic current control is discussed, which combines data transmission with efficient quasi-square-wave zero-voltage switc...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2023-10, Vol.38 (10), p.12383-12387
Main Authors: Monch, Stefan, Kuring, Carsten, Geng, Xiaomeng, Hoeher, Peter A., Liserre, Marco, Quay, Rudiger, Dieckerhoff, Sibylle
Format: Article
Language:English
Subjects:
Current control
Data communication
Data transfer (computers)
Data transmission
efficiency
Electric bridges
Electric potential
Energy conversion efficiency
Hysteresis
Modulation
Power conversion
Power converters
power electronics
Pulse duration modulation
Pulse width modulation
Switching
Switching frequency
talkative power conversion (TPC)
Voltage
Zero voltage switching
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Summary:Simultaneous power and data transmission is possible by data injection into control signals of power converters without additional hardware. In this letter, a modified analog hysteretic current control is discussed, which combines data transmission with efficient quasi-square-wave zero-voltage switching. A half-bridge GaN converter with 99.1% efficiency is investigated with respect to power conversion efficiency and data transfer. Measurements show that, compared with the digital PWM, a wider range of current ripple modulation is available for data transfer before the power efficiency drops. The feasibility of talkative power conversion (TPC) in the presence of frequency jitter is demonstrated.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2023.3297508