POWER-DOWN TIMING CONTROL CIRCUIT, POWER SUPPLY SYSTEM AND POWER-DOWN TIMING CONTROL METHOD

WIPO Patent Application WO/2019/129134

A1

A power-down timing control circuit, a power supply system and a power-down timing control method, the power-down timing control circuit comprising a first voltage source (V1), a second voltage source (V2) and a voltage reference module (T1) connected between the first voltage source (V1) and the second voltage source (V2), wherein the first voltage source (V1) is configured to provide a first voltage; the second voltage source (V2) is configured to provide a second voltage; and the voltage reference module (T1) is configured to automatically adjust the power-down speed of one of the first voltage and the second voltage when a power-down voltage difference between the first voltage and the second voltage is greater than a preset first power-down voltage difference, so that the power-down voltage difference between the first voltage and the second voltage is less than or equal to a preset second power-down voltage difference, wherein the preset second power-down voltage difference is greater than the preset first power-down voltage difference.

JPH06214665	CONSTANT CURRENT CIRCUIT AND LIQUID CRYSTAL DRIVING CIRCUIT
JP4710386	Power supply
JPS5435347	DC STABILIZED POWER SUPPLY

ZHANG SUOCHENG (CN)

PCT/CN2018/124304

July 04, 2019

December 27, 2018

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ZTE CORP (CN)

G05F1/56; G05B19/04

CN205644338U	2016-10-12
CN103368750A	2013-10-23
CN104786676A	2015-07-22
CN104252214A	2014-12-31
CN102684615A	2012-09-19
CN106371334A	2017-02-01
US7276885B1	2007-10-02

TEE & HOWE INTELLECTUAL PROPERTY ATTORNEYS (CN)

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