DRIVING CIRCUIT AND SWITCH POWER SUPPLY

WIPO Patent Application WO/2020/087224

A1

A driving circuit and a switch power supply. The driving circuit (10) at least comprises a control chip (11), a first driving chip (U1), a second driving chip (U2), a third driving chip (U3), a fourth driving chip (U4), a first resistor (R1), a second resistor (R2), a third resistor (R3), a fourth resistor (R4), a first transformer (14) and a second transformer (15), wherein the first driving chip (U1) is coupled to a first input end of the first transformer (14); the second driving chip (U2) is coupled to a second input end of the first transformer (14); the third driving chip (U3) is coupled to a first input end of the second transformer (15); and the fourth driving chip (U4) is coupled to a second input end of the second transformer (15). By means of isolating the first transformer (14) and the second transformer (15), that is, the driving circuit (10) being coupled to a full-bridge inverter circuit (20) through the first transformer (14) and the second transformer (15), a signal transmission delay time is reduced, and high-frequency signals can be transmitted.

WO/2017/135523	POWER SUPPLY APPARATUS HAVING STANDBY POWER CONTROL FUNCTION, AND POWER SUPPLY METHOD THEREOF
JP2014017672	LOAD DRIVE CIRCUIT
JP4062307	converter

LIU YI (CN)

PCT/CN2018/112479

May 07, 2020

October 29, 2018

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SHENZHEN A & E INTELLIGENT TECH INSTITUTE CO LTD (CN)

H02M1/00

CN103248206A	2013-08-14
CN1659933A	2005-08-24
CN201426097Y	2010-03-17
CN1553562A	2004-12-08
US20140226375A1	2014-08-14

CHINA WISPRO INTELLECTUAL PROPERTY LLP. (CN)

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