Title:
DRIVE CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2020/098372
Kind Code:
A1
Abstract:
A drive circuit, comprising: a voltage input module (210), a quick startup module (220), and a control module (230). The voltage input module (210) comprises a first input terminal (112) and a second input terminal (114) and is configured to receive an AC voltage and to convert the AC voltage into DC power. The quick startup module (220) is coupled to the voltage input module (210) and is configured to receive a DC voltage and to convert the DC voltage into a startup voltage. The control module (230) is coupled to the quick startup module (220) and is configured to receive a startup voltage and to control the operation of a load. The quick startup module (220) comprises a first resistor R22 and a second resistor R23. The first resistor R22 and the second resistor R23 connected in series are coupled to the first input terminal (112) and the control module (230). A voltage regulating switch Q21 is connected in parallel to one of the first resistor R22 and the second resistor R23. When the AC voltage is within a threshold range, the voltage regulating switch Q21 is turned on to short-circuit the first resistor R22 or the second resistor R23 connected in parallel to the voltage regulating switch, so as to increase the startup voltage and quicken the startup of the control module (230).
Inventors:
MAO ZHU (CN)
QIN SHUYI (CN)
ZHANG BO (CN)
WANG FANBIN (CN)
FANG MIN (CN)
ZHOU ZHANGJI (CN)
QIN SHUYI (CN)
ZHANG BO (CN)
WANG FANBIN (CN)
FANG MIN (CN)
ZHOU ZHANGJI (CN)
Application Number:
PCT/CN2019/106572
Publication Date:
May 22, 2020
Filing Date:
September 19, 2019
Export Citation:
Assignee:
CURRENT LIGHTING SOLUTIONS LLC (US)
MAO ZHU (CN)
MAO ZHU (CN)
International Classes:
H05B37/02
Foreign References:
| CN105873310A | 2016-08-17 | |||
| CN102647823A | 2012-08-22 | |||
| CN101868094A | 2010-10-20 | |||
| CN101346022A | 2009-01-14 | |||
| US20080136335A1 | 2008-06-12 | |||
| US20170367162A1 | 2017-12-21 |
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
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