Title:
POWER CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/065960
Kind Code:
A1
Abstract:
A power conversion device (40) is provided with: a full-bridge circuit (50) comprising a series connection of first and second switches (Q1, Q2) and a series connection of third and fourth switches (Q3, Q4), and connected to power transmission-side terminals (CH1, CL1); a power conversion circuit (70, 110, 120, 130) connected to power reception-side terminals (CH2, CL2); a transformer (80) comprising a power transmission-side coil (81) connected to the full-bridge circuit and a power reception-side coil (83) connected to the power conversion circuit; and a control unit (100) which turns on the first and second switches alternately and turns on the third and fourth switches alternately. A resistive load (30) is connected to the power reception-side terminals. The control unit makes the setting of a phase difference (λ1) between a switching timing for on-operation of the first switch and a switching timing for on-operation of the third switch smaller as a detected voltage (V3r) across the power reception-side terminals becomes smaller.
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Inventors:
IYASU SEIJI (JP)
KURAUCHI SYUJI (JP)
HANDA YUUICHI (JP)
KURAUCHI SYUJI (JP)
HANDA YUUICHI (JP)
Application Number:
PCT/JP2020/037027
Publication Date:
April 08, 2021
Filing Date:
September 29, 2020
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
H02M3/28
Foreign References:
| JP2008543271A | 2008-11-27 | |||
| JP2013188014A | 2013-09-19 |
Attorney, Agent or Firm:
YAMADA, Tsuyoshi (JP)
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