Invention Grant
US07919931B2 LED driving circuit, illuminating device, and electro-optical device 有权
LED驱动电路,照明装置和电光装置

LED driving circuit, illuminating device, and electro-optical device
Abstract:
An LED driving circuit for driving a plurality of different LEDs includes: a first power supply circuit that is supplied with an input voltage for generating a plurality of driving voltages and a reference voltage with respect to the input voltage and generates a first output voltage and a second output voltage from the input voltage, on the basis of a first control signal; and a second power supply circuit that is supplied with the first output voltage, the second output voltage, and the reference voltage, selects a voltage for driving the LEDs, on the basis of a second control signal, and outputs them.
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