Light regulating method for LED light regulating apparatus
A dimming device and dimming curve technology, which is applied to lighting devices, light sources, electric light sources, etc., can solve the problems of large light mutation rate, rough surface, poor smoothness, etc., and achieve the effect of ensuring fading and fading effects Effect
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Embodiment 1
[0021] like figure 2 and image 3 As shown, a stage LED dimming device includes a microcontroller 1, a PWM dimming device 2 and an insulated gate N-channel field effect transistor 3. The output end of the microcontroller 1 is connected to the input of the PWM dimming device 2. The output terminal of the PWM dimming device 2 is connected to the gate of the insulated gate type N-channel field effect transistor 3 , and the drain of the insulated gate type N-channel field effect transistor 3 is connected to the LED group 4 . Wherein, the microcontroller 1 is a single-chip microcomputer or a CPU. The LED dimming curve of the LED lamp is represented by brightness and gray scale; wherein the Y-axis of the LED dimming curve represents the brightness, and the unit is LX; wherein the X-axis of the LED dimming curve represents the gray scale , the LED dimming curve is an incremental curve, and the dimming method is:
[0022] First, the microcontroller 1 cooperates with the PWM dimmin...
Embodiment 2
[0025] like figure 2 and Figure 4As shown, a stage LED dimming device includes a microcontroller 1, a PWM dimming device 2 and an insulated gate N-channel field effect transistor 3. The output end of the microcontroller 1 is connected to the input of the PWM dimming device 2. The output terminal of the PWM dimming device 2 is connected to the gate of the insulated gate type N-channel field effect transistor 3 , and the drain of the insulated gate type N-channel field effect transistor 3 is connected to the LED group 4 . Wherein, the microcontroller 1 is a single-chip microcomputer or a CPU. The LED dimming curve of the LED lamp is represented by brightness and gray scale; wherein the Y-axis of the LED dimming curve represents the brightness, and the unit is LX; wherein the X-axis of the LED dimming curve represents the gray scale , the LED dimming curve is an incremental curve, and the dimming method is:
[0026] First, the microcontroller 1 cooperates with the PWM dimmin...
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