Title:
MULTI-PHASE LLC RESONANT CONVERTER CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2023/224008
Kind Code:
A1
Abstract:
A multi-phase LLC resonant converter circuit (10) comprises: first to third LLC resonant converters comprising series circuits (S1 to S3) of first switches and second switches, which are connected in parallel with a DC power supply, high-frequency transformers (T1 to T3) comprising primary-side windings and secondary-side windings, and resonant circuits comprising resonant reactors (Lr1 to Lr3) connected between the connection points of the first switches and the second switches and one ends of the primary-side windings, resonant capacitors (Cr1 to Cr3), one ends of which are connected to the other ends of the primary-side windings, and divided resonant capacitors (Cn1 to Cn3), one ends of which are connected to the connection points of the primary-side windings and the resonant capacitors; a first neutral line (N1) connecting the other ends of the resonant capacitors; a neutral line reactor (Ln) connected between the first neutral line and the power-supply line of the DC power supply; and a second neutral line (N2) connecting the other ends of the divided resonant capacitors.
Inventors:
TAKAGI KAZUTO (JP)
AOYAGI YUKI (JP)
AOYAGI YUKI (JP)
Application Number:
PCT/JP2023/018137
Publication Date:
November 23, 2023
Filing Date:
May 15, 2023
Export Citation:
Assignee:
GS YUASA INT LTD (JP)
International Classes:
H02M3/28
Foreign References:
| US20100328968A1 | 2010-12-30 | |||
| JP2021118604A | 2021-08-10 | |||
| JP2021153382A | 2021-09-30 |
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