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Title:
CONTROL CIRCUIT AND METHOD FOR BLEEDER CIRCUIT, CHIP AND DRIVING SYSTEM AND METHOD
Document Type and Number:
WIPO Patent Application WO/2019/210694
Kind Code:
A1
Abstract:
Provided by the present application are a control circuit and method for a bleeder circuit, a chip, and a driving system and method. The control circuit of the bleeder circuit is connected to a detection circuit used for detecting the presence or absence of a dimming device and the type of said dimming device, and a bleeder circuit, wherein the control circuit of the bleeder circuit is used to receive a detection signal outputted by the detection circuit, and generate a control signal for said bleeder circuit according to the detection signal, said control signal being used to control an operating state of the bleeder circuit. The present application correspondingly generates a control signal for a bleeder circuit according to a detection signal indicating the presence or absence of a dimmer and the type of the dimmer so as to control the bleeder circuit to operate only at a given phase interval, and may thereby reduce the power consumption of the bleeder circuit when ensuring the stable operation of a dimmer or a dimming device.

Inventors:
YU, Weijia (Room 504-511, 5/F Bldg 2, No. 666, Zhangheng Road, Zhangjiang Hi-tech Park, Pudong, Shanghai 3, 201203, CN)
FAN, Minmin (Room 504-511, 5/F Bldg 2, No. 666, Zhangheng Road, Zhangjiang Hi-tech Park, Pudong, Shanghai 3, 201203, CN)
QI, Feng (Room 504-511, 5/F Bldg 2, No. 666, Zhangheng Road, Zhangjiang Hi-tech Park, Pudong, Shanghai 3, 201203, CN)
SUN, Shungen (Room 504-511, 5/F Bldg 2, No. 666, Zhangheng Road, Zhangjiang Hi-tech Park, Pudong, Shanghai 3, 201203, CN)
ZHANG, Fuqiang (Room 504-511, 5/F Bldg 2, No. 666, Zhangheng Road, Zhangjiang Hi-tech Park, Pudong, Shanghai 3, 201203, CN)
Application Number:
CN2018/121806
Publication Date:
November 07, 2019
Filing Date:
December 18, 2018
Export Citation:
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Assignee:
SHANGHAI BRIGHT POWER SEMICONDUCTOR CO., LTD. (Room 504-511, 5/F Bldg 2, No. 666, Zhangheng Road, Zhangjiang Hi-tech Park, Pudong, Shanghai 3, 201203, CN)
International Classes:
H05B37/02
Foreign References:
CN105246218A2016-01-13
CN105246218A2016-01-13
CN102333404A2012-01-25
CN105517266A2016-04-20
Attorney, Agent or Firm:
SHANGHAI DIANSHI PARTNERS, P.C. (Room 708/GAO Lei, WANG ZaichaoBldg 1, No. 2277, Zuchongzhi Road, Pudong, Shanghai 3, 201203, CN)
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