Invention Grant
US09247596B2 Driving circuit for driving light-emitting circuit, and light-emitting device having the same
有权
用于驱动发光电路的驱动电路和具有该驱动电路的发光装置
- Patent Title: Driving circuit for driving light-emitting circuit, and light-emitting device having the same
- Patent Title (中): 用于驱动发光电路的驱动电路和具有该驱动电路的发光装置
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Application No.: US14429949Application Date: 2013-09-12
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Publication No.: US09247596B2Publication Date: 2016-01-26
- Inventor: Weijun Jiao
- Applicant: BOE TECHNOLOGY GROUP CO., LTD. , BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
- Applicant Address: CN Beijing CN Beijing
- Assignee: BOE TECHNOLOGY GROUP CO., LTD.,BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
- Current Assignee: BOE TECHNOLOGY GROUP CO., LTD.,BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
- Current Assignee Address: CN Beijing CN Beijing
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: CN201310279706 20130704
- International Application: PCT/CN2013/083399 WO 20130912
- International Announcement: WO2015/000221 WO 20150108
- Main IPC: H05B33/08
- IPC: H05B33/08 ; H05B37/02

Abstract:
A driving circuit is used for driving a light-emitting circuit including a plurality of light-emitting elements connected in series. The driving circuit includes a first silicon controlled rectifier, a first current-limiting resistor, a first resistor, a controllable switch and a control circuit. One end of the first silicon controlled rectifier is grounded, and another end thereof is connected to a driving terminal for providing a driving voltage via the first current-limiting resistor. One end of the controllable switch is connected to the light-emitting circuit, another end thereof is grounded via the first resistor, and a control end thereof is connected to a first node between the silicon controlled rectifier and the first current-limiting resistor. The control circuit is configured to perform a control operation when a voltage applied to a second node between the controllable switch and the light-emitting circuit exceeds a predetermined voltage threshold.
Public/Granted literature
- US20150230299A1 DRIVING CIRCUIT AND LIGHT-EMITTING DEVICE Public/Granted day:2015-08-13
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