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    • 69. 发明授权
    • Power supply for light emitting diodes (LEDs)
    • 发光二极管(LED)的电源
    • US09301370B2
    • 2016-03-29
    • US13976810
    • 2011-10-11
    • Sung Eun Kim
    • Sung Eun Kim
    • H05B37/02H05B33/08H05B37/03
    • H05B37/02H05B33/0893H05B37/036
    • A power supply is provided. The power supply includes at least one light emission unit, a power source, an openness detection circuit, and a feedback control unit. The at least one light emission unit includes a plurality of serially connected LEDs. The power source supplies a DC voltage to the light emission unit. The openness detection circuit varies a reference potential with a voltage which is detected from both ends of at least one of the LEDs in the light emission unit. The feedback control unit regulates an output current of the power source according to the reference potential of the openness detection circuit.
    • 提供电源。 电源包括至少一个发光单元,电源,开路检测电路和反馈控制单元。 所述至少一个发光单元包括多个串联LED。 电源向发光单元提供直流电压。 开路检测电路利用从发光单元中的至少一个LED的两端检测的电压来改变参考电位。 反馈控制单元根据开路检测电路的基准电位来调节电源的输出电流。