LED driver
A LED driver, the first technology, applied in the direction of lighting devices, light sources, electrical components, etc., can solve the problems that LED drivers cannot meet the height requirements of flat lamps, lamps lose competitiveness, and the cost of magnetic cores is expensive, etc., to achieve high frequency suppression Electromagnetic noise, meeting height requirements, effect of reducing height
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Example Embodiment
[0021] Example one
[0022] Such as image 3 As shown, the LED driver in this embodiment includes a first capacitor C1, a second capacitor C0, a transistor Q1, a diode D1, an energy storage inductance unit 1 and a control circuit board 2.
[0023] The two ends of the first capacitor C1 are used as input terminals of the LED driver, the two ends of the first capacitor C1 are respectively electrically connected to the power supply, and the first end of the first capacitor C1 is grounded.
[0024] The two ends of the second capacitor C0 are used as the output ends of the LED driver, and the two ends of the second capacitor C0 are respectively electrically connected to the LED lamp load, thereby supplying power to the LED lamp.
[0025] The source of the transistor Q1 is grounded through the resistor R1, and the drain of the transistor Q1 is electrically connected to the first end of the second capacitor C0 through the diode D1. That is, the drain of the transistor Q1 is electrically conn...
Example Embodiment
[0032] Example two
[0033] Such as Figure 4 As shown, the difference between this embodiment and the first embodiment is only: the first power connection end of the control chip is connected to the second end of the first capacitor C1 through a peripheral circuit, and the control chip is directly supplied with power through the power supply. During implementation, Only need to set up the corresponding peripheral circuit.
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