Invention Grant
- Patent Title: System and method for driving light source comprising voltage feedback circuit and current feedback circuit
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Application No.: US15414003Application Date: 2017-01-24
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Publication No.: US10660176B2Publication Date: 2020-05-19
- Inventor: Jen-Chun Chen , Sheng-Tai Lee , Yung-Lin Lin
- Applicant: O2Micro, Inc.
- Applicant Address: US CA Santa Clara
- Assignee: O2Micro Inc.
- Current Assignee: O2Micro Inc.
- Current Assignee Address: US CA Santa Clara
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@459b808
- Main IPC: H05B45/37
- IPC: H05B45/37 ; H05B45/10 ; H05B45/46 ; H05B45/48 ; H02M3/335 ; H02M1/00
Abstract:
A system for driving a light source includes a power converter and control circuitry coupled to the power converter. The power converter converts input power to an output voltage to power the light source. The control circuitry senses the output voltage and senses current of the light source. The control circuitry generates a control signal based on a voltage feedback signal indicative of a combination of said output voltage and said current of said light source, and controls the power converter by the control signal to adjust the output voltage.
Public/Granted literature
- US20190254130A1 SYSTEM AND METHOD FOR DRIVING LIGHT SOURCE Public/Granted day:2019-08-15
Information query
