Title:
DIGITAL POWER SUPPLY CIRCUIT AND LIQUID CRYSTAL DRIVER DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/197732
Kind Code:
A1
Abstract:
A digital power supply circuit and a liquid crystal driver device. The digital power supply circuit comprises: a control module (12), which comprises: an acquisition unit (13) used for acquiring the rate of change of a digital power supply voltage at an initial stage; a comparison unit (14) used for comparing the rate of change with a preset threshold and generating a control signal on the basis of the comparison result; and a pull-down unit (15) used for pulling down an input voltage of the enabling end via the control signal when the rate of change exceeds the preset threshold.
Inventors:
CAO DAN (CN)
Application Number:
PCT/CN2016/087797
Publication Date:
November 23, 2017
Filing Date:
June 30, 2016
Export Citation:
Assignee:
SHENZHEN CHINA STAR OPTOELECT (CN)
International Classes:
G09G3/36; H02H3/20
Foreign References:
| CN105262057A | 2016-01-20 | |||
| CN102710243A | 2012-10-03 | |||
| CN105388957A | 2016-03-09 | |||
| CN103595018A | 2014-02-19 | |||
| JP2014127728A | 2014-07-07 | |||
| JP2001352664A | 2001-12-21 |
Attorney, Agent or Firm:
ESSEN PATENT&TRADEMARK AGENCY (CN)
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