Invention Grant
US09041313B2 Low dropout light emitting diode (LED) ballast circuit and method therefor
有权
低压差发光二极管（LED）镇流器电路及其方法
- Patent Title: Low dropout light emitting diode (LED) ballast circuit and method therefor
- Patent Title (中): 低压差发光二极管（LED）镇流器电路及其方法
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Application No.: US13871360Application Date: 2013-04-26
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Publication No.: US09041313B2Publication Date: 2015-05-26
- Inventor: Alexander Mednik
- Applicant: Microchip Technology, Inc.
- Applicant Address: US AZ Chandler
- Assignee: Microchip Technology Inc.
- Current Assignee: Microchip Technology Inc.
- Current Assignee Address: US AZ Chandler
- Agency: Burr & Forman LLP
- Agent Ryan M. Corbett
- Main IPC: H05B37/02
- IPC: H05B37/02 ; G05F1/10 ; H05B33/08
Abstract:
A ballast circuit for a Light Emitting Diode (LED) has a regulator element coupled to the LED and to an input voltage source. A control circuit is coupled to the LED and to an input voltage source. A first switching device is coupled in series with the regulator element. A second switching device is coupled to the input voltage and the control circuit.
Public/Granted literature
- US20140320037A1 LOW DROPOUT LIGHT EMITTING DIODE (LED) BALLAST CIRCUIT AND METHOD THEREFOR Public/Granted day:2014-10-30
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