Device for controlling input surge current of LED module
A LED module and inrush current technology, which is applied in lighting devices, lamp circuit layout, electric light sources, etc., can solve the problems of limited current limiting effect, large and slow inrush current, etc., achieve stable performance and prevent overcurrent big effect
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[0025] Please refer to image 3 As shown, an LED module input surge current control device 100 includes an LED module LED1-N, a power supply unit, and a control unit 200. The power supply unit supplies power to the control unit 200, and the control unit 200 is connected in series with the LED modules LED1-N. The control unit 200 includes a switching element S connected in series with the LED module LED1-N, a sampling circuit 201 connected to the switching element S, and a current limiting unit. The LED module LED1-N has a rated current, and the sampling circuit 201 samples the Current, when the current flowing through the LED module LED1-N is within the rated current range, the switching element S of the control unit 200 works in a saturated conduction state, when the current flowing through the LED module LED1-N is greater than the rated current range At this time, the current-limiting unit initiates current-limiting through the signal given by the sampling circuit 201, so tha...
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