Title:
LED DIMMING CONTROL CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2019/196695
Kind Code:
A1
Abstract:
An LED dimming control circuit: in the dimming control circuit, a stabilized voltage source module outputs a reference voltage VDD and a voltage required for dimming to a constant current source module; the stabilized voltage source module outputs the reference voltage VDD to a dimming signal processing module; the constant current source module outputs a constant current to a filter module; a dimming signal input module outputs an original dimming signal to the filter module; the filter module outputs the filtered original dimming signal to the dimming signal processing module; and the dimming signal processing module processes the original dimming signal and outputs a direct current dimming signal. The original dimming signal comprises a resistance dimming signal, a voltage dimming signal, and a PWM dimming signal, the dimming signal input module selecting and outputting one of said signals to the filter module such that the same LED dimming control circuit may output different types of dimming signals according to needs.
Inventors:
WANG ZONGYOU (CN)
MO YONGFU (CN)
MO YONGFU (CN)
Application Number:
PCT/CN2019/080859
Publication Date:
October 17, 2019
Filing Date:
April 01, 2019
Export Citation:
Assignee:
SHENZHEN SOSEN ELECTRONICS CO LTD (CN)
International Classes:
H05B45/50; H05B44/00
Foreign References:
| CN108449837A | 2018-08-24 | |||
| CN208285590U | 2018-12-25 | |||
| CN207053836U | 2018-02-27 | |||
| CN206759775U | 2017-12-15 | |||
| US9049763B1 | 2015-06-02 | |||
| EP2538541A1 | 2012-12-26 | |||
| JP3177245U | 2012-07-26 |
Attorney, Agent or Firm:
SHENZHEN REFINED INTELLECTUAL PROPERTY OFFICE (GENERAL PARTNERSHIP) (CN)
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