Title:
POWER SUPPLY CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2023/155260
Kind Code:
A1
Abstract:
The present disclosure relates to a power supply circuit, comprising a power supply module used for providing a first direct-current voltage; a transformer module comprising a primary-side first winding and a secondary-side winding, the primary-side first winding being connected to the power supply module, and the secondary-side winding being coupled to the primary-side first winding; a switch module of which one end is connected to the primary-side first winding, and the other end is connected to a ground end; a control module connected to the switch module and used for controlling the switch module to have different switching frequencies and/or different turn-off time, so that a first pulse voltage having different duty ratios is formed in the primary-side first winding, and the secondary-side winding accordingly generates a second pulse voltage having different duty ratios; and a voltage conversion module of which an input end is connected to the secondary-side winding and an output end is connected to a voltage output end of the power supply circuit, the voltage conversion module being used for converting the second pulse voltage having different duty ratios in the secondary-side winding into a direct current voltage. The power supply circuit in the embodiment of the present disclosure may intelligently output various power supply voltages.
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Inventors:
ZHU YURU (CN)
HUANG YAN (CN)
CAI XINHUA (CN)
HUANG YAN (CN)
CAI XINHUA (CN)
Application Number:
PCT/CN2022/080884
Publication Date:
August 24, 2023
Filing Date:
March 15, 2022
Export Citation:
Assignee:
CHANGXIN MEMORY TECH INC (CN)
International Classes:
H02M7/12; H02M3/28
Foreign References:
| CN201699598U | 2011-01-05 | |||
| CN202906767U | 2013-04-24 | |||
| JP2000014141A | 2000-01-14 | |||
| CN101350557A | 2009-01-21 | |||
| CN210835771U | 2020-06-23 | |||
| CN102624237A | 2012-08-01 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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