SINGLE-CHIP BUS SLAVE CIRCUIT STRUCTURE

Title:

SINGLE-CHIP BUS SLAVE CIRCUIT STRUCTURE

Document Type and Number:

WIPO Patent Application WO/2022/105248

Kind Code:

A1

Abstract:

Provided is a single-chip bus slave circuit structure, comprising a monolithically integrated chip, a rectifier bridge, a first street lamp circuit, a second street lamp circuit, and a third street lamp circuit. The monolithically integrated chip is at least provided with a bus voltage input pin, a grounding pin, a first drive signal output pin, a second drive signal output pin, a third drive signal output pin, and a power supply output pin; the bus voltage input pin and the grounding pin are both connected to an output end of the rectifier bridge; an input end of the rectifier bridge is connected to positive and negative buses; and the grounding pin is further grounded. The single-chip bus slave circuit structure of the present invention is used, such that an intelligent constant-current driving function is achieved, constant-current driving of lamps is achieved within the whole bus voltage range, the constant-current characteristics of the lamps do not depend on parameters of the lamps, and the brightness of the lamps is kept uniform; meanwhile, the number of the driven lamps can be flexibly adjusted, and high energy use efficiency can be guaranteed.

Inventors:

ZENG JIEQIONG (CN)
ZHANG TIANSHUN (CN)
ZHANG JUN (CN)
DING ZENGWEI (CN)
WU JUNLEI (CN)
LIU YUFANG (CN)
JIANG LILI (CN)

Application Number:

PCT/CN2021/104278

Publication Date:

May 27, 2022

Filing Date:

July 02, 2021

Export Citation:

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Assignee:

CRM ICBG WUXI CO LTD (CN)

International Classes:

H05B47/18

Foreign References:

CN112351565A	2021-02-09
CN213244437U	2021-05-18
CN110602834A	2019-12-20
CN201764452U	2011-03-16
KR20090092994A	2009-09-02
US20200060010A1	2020-02-20
JP2008166165A	2008-07-17
KR20140102047A	2014-08-21

Other References: