Monolithic GaN-Based Multiple-Phase Bidirectional Energy Transfer With Seamless Control Applied on High-Voltage and Low-Voltage Batteries

In this paper, the proposed multi-phase (MP) bidirectional dual Gallium-Nitride (GaN) controlled rectifier (GCR) uses dual GCR with the pre-charge technique to reduce third quadrant operation by minimizing dead time to 0.12ns and 0.13ns, and lowering the negative V _{\mathrm{DS}} to - 0.6V and -...

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Published in:IEEE transactions on circuits and systems. I, Regular papers Regular papers, 2024-11, p.1-13
Main Authors: Wang, Tz-Wun, Hung, Sheng-Hsi, Li, Si-Yi, Chen, Chi-Yu, Chiu, Po-Jui, Wu, Tzu-Ying, Chen, Ke-Horng, Zheng, Kuo-Lin, Lin, Ying-Hsi, Lin, Shian-Ru, Tsai, Tsung-Yen
Format: Article
Language:English
Subjects:
Batteries
Circuits
Discharges (electric)
dual GCR
Dynamic ramp generator
Energy exchange
GaN controlled rectifier (GCR)
Generators
Inductors
low quiescent error amplifier (low-I<inline-formula xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <tex-math notation="LaTeX"> _{\mathrm{Q}}</tex-math> </inline-formula> EA)
Low voltage
MP bidirectional dual GCR
MP-accelerated current control
seamless control
third quadrant operation
Threshold voltage
Transient analysis
Voltage control
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Summary:In this paper, the proposed multi-phase (MP) bidirectional dual Gallium-Nitride (GaN) controlled rectifier (GCR) uses dual GCR with the pre-charge technique to reduce third quadrant operation by minimizing dead time to 0.12ns and 0.13ns, and lowering the negative V _{\mathrm{DS}} to - 0.6V and - 0.8V in buck and boost operation, respectively. This work is the first research for monolithic bidirectional energy transfer with a two-switch-only topology. With the help of MP-accelerated current control and the GCR dynamic ramp generator, the voltage variation on the high-voltage (HV) side and low-voltage (LV) side can be reduced to less than 50mV and to 40mV, respectively, during buck and boost operation transitions. Moreover, the recovery time is effectively reduced and current balance between the four phases can be achieved within 7 cycles ( = 350ns). The peak efficiency is as high as 95.5% and 94.2% in buck and boost operation, respectively.
ISSN:1549-8328
1558-0806
DOI:10.1109/TCSI.2024.3494853