Title:
ISOLATED POWER SUPPLY CIRCUIT AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/000365
Kind Code:
A1
Abstract:
Disclosed are an isolated power supply circuit and a control method therefor. The isolated power supply circuit comprises a transmitting end and a receiving end, wherein the transmitting end is connected to a voltage source; and the circuit further comprises a resonance circuit and a gate voltage division circuit. The gate voltage division circuit comprises: a first voltage division branch, wherein one end of the first voltage division branch is connected between a first inductor and an input end of a first MOS transistor, the first voltage division branch comprises a first voltage division part and a second voltage division part connected to each other in series, and a gate electrode of a second MOS transistor is connected between the first voltage division part and the second voltage division part; and a second voltage division branch, wherein one end of the second voltage division branch is connected between a second inductor and an input end of the second MOS transistor, the second voltage division branch comprises a third voltage division part and a fourth voltage division part connected to each other in series, and a gate electrode of the first MOS transistor is connected to a joint of the third voltage division part and the fourth voltage division part. Therefore, the gate voltage of the first MOS transistor and the gate voltage of the second MOS transistor can be regulated according to the voltage division conditions of the first voltage division branch and the second voltage division branch.
Inventors:
GONG XIAOHAN (CN)
SHENG YUN (CN)
SHENG YUN (CN)
Application Number:
PCT/CN2019/097956
Publication Date:
January 07, 2021
Filing Date:
July 26, 2019
Export Citation:
Assignee:
SUZHOU NOVOSENSE MICROELECTRONICS CO LTD (CN)
International Classes:
H03B5/18; H02M1/088
Foreign References:
| CN103001584A | 2013-03-27 | |||
| CN103001584A | 2013-03-27 | |||
| CN107248847A | 2017-10-13 | |||
| CN106549636A | 2017-03-29 | |||
| US20120025921A1 | 2012-02-02 |
Attorney, Agent or Firm:
SUZHOU WISPRO INTELLECTUAL PROPERTY AGENCY (CN)
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