Invention Grant
US09585207B2 System and method for achieving precise regulation of multiple outputs in a multi-resonant LED driver stage
有权
用于在多谐振LED驱动级中实现多输出的精确调节的系统和方法
- Patent Title: System and method for achieving precise regulation of multiple outputs in a multi-resonant LED driver stage
- Patent Title (中): 用于在多谐振LED驱动级中实现多输出的精确调节的系统和方法
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Application No.: US14328909Application Date: 2014-07-11
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Publication No.: US09585207B2Publication Date: 2017-02-28
- Inventor: Ramanujam Ramabhadran , Gang Yao
- Applicant: GENERAL ELECTRIC COMPANY
- Applicant Address: US NY Niskayuna
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Niskayuna
- Agent Pabitra K. Chakrabarti
- Main IPC: H05B33/08
- IPC: H05B33/08
Abstract:
A light emitting diode (LED) driver includes an inverter for converting a DC input signal to a pulsating signal. A multiple output multi-resonant converter generates a first LED string current in response to the pulsating signal, and also generates a second LED string current in response to the pulsating signal. A transistor that may be a FET or BJT operating in its linear region regulates the second LED string current independent of the first LED string current without sacrificing efficiency of the overall power train.
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