Title:
POWER SUPPLY DEVICE AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/085028
Kind Code:
A1
Abstract:
A power supply device according to one embodiment of the present technology comprises two transformers, two primary-side circuits, a secondary-side circuit, and a control unit. The two primary-side circuits are respectively provided to the two transformers on the primary sides thereof, and each have an LLC resonant circuit that includes a primary winding of the transformer and a switch circuit that switches between positive and negative for a DC power supply and connects the DC power supply to the LLC resonant circuit. The secondary-side circuit is provided on the secondary side of the two transformers and combines and outputs electric power generated at the secondary windings of the two transformers. On the basis of the output from the secondary-side circuit, the control unit controls a switching frequency and a phase shift amount that are set at each of the switch circuits of the two primary-side circuits.
Inventors:
YAMANE MITSURU (JP)
TAKAHAMA MASANOBU (JP)
TAKAHAMA MASANOBU (JP)
Application Number:
PCT/JP2022/039028
Publication Date:
May 19, 2023
Filing Date:
October 20, 2022
Export Citation:
Assignee:
SONY GROUP CORP (JP)
International Classes:
H02M3/28
Foreign References:
| JP2017038456A | 2017-02-16 | |||
| JP2014093810A | 2014-05-19 | |||
| JP2020202645A | 2020-12-17 | |||
| JP2021118604A | 2021-08-10 |
Attorney, Agent or Firm:
MINAMI AOYAMA PATENT AND TRADEMARK ATTORNEYS (JP)
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