Invention Grant
- Patent Title: Driving circuit for light emitting element
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Application No.: US15040997Application Date: 2016-02-10
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Publication No.: US09917415B2Publication Date: 2018-03-13
- Inventor: Hiroyuki Nakamura
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2011-100131 20110427
- Main IPC: H01S5/042
- IPC: H01S5/042 ; H01S5/0683 ; H05B33/08 ; H01S5/068 ; B41J2/435 ; G03G15/04

Abstract:
A driving circuit for causing a light emitting element to emit light in response to a driving signal is provided. The driving circuit comprising a first current supply circuit that starts to supply a driving current to the light emitting element in response to the driving signal, a second current supply circuit that starts to supply a supplementary current to the light emitting element in response to the driving signal. The second current supply circuit stops to supply the supplementary current upon detecting that a voltage applied to the light emitting element has reached a threshold voltage.
Public/Granted literature
- US20160164253A1 DRIVING CIRCUIT FOR LIGHT EMITTING ELEMENT Public/Granted day:2016-06-09
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