Light source device and light adjusting control circuit
A technology of dimming control circuit and light source device, applied in the field of diode light source device and its dimming control circuit, can solve the problems of small dimming ratio and the inability of light emitting diode to emit brightness, etc., achieve high dimming ratio and increase dimming The effect of precision
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[0049] figure 2 It is a schematic diagram of a light source device according to an embodiment of the present invention. Please refer to figure 2 , the light source device 200 includes a light emitting diode unit 202 , an inductor L1 and a dimming module 204 . The LED unit 202 is coupled between an input voltage Vin and the inductor L1 , the inductor L1 is coupled between the LED unit 202 and the dimming module 204 , and the dimming module 204 is used to adjust the brightness of the LED unit 202 . Further, the dimming module 204 may include a switch unit SW1 and a dimming control circuit 206 . In this embodiment, the switch unit SW1 is implemented by a transistor M1, but it is not limited thereto. The drain of the transistor M1 is coupled to the inductor L1 , the source of the transistor M1 is coupled to ground, and the gate of the transistor M1 is coupled to the dimming control circuit 206 .
[0050] The dimming control circuit 206 is used for generating a driving signal...
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