A led drive circuit with output current self-regulation capability
A technology of LED driving and output current, applied in electric light sources, electrical components, electroluminescent light sources, etc., can solve problems such as deterioration of working conditions, and achieve the effects of low THD, avoiding harmonic pollution, and high PF.
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[0040] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be pointed out that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all those skilled in the art can obtain without creative work. Other embodiments all belong to the protection scope of the present invention
[0041] Such as figure 1 As shown, this embodiment provides an LED drive circuit with output current self-adjustment capability, including a single-phase AC input power supply Uin, a single-phase rectifier bridge DB1, a first power switch tube S1, a second power switch tube S2, a second power switch tube S2, a A power diode D1, a second power diode D2, a first inductor L1, a first capacitor C1, a second capacitor C2, a high-frequency transformer T, a first current sampling resistor ...
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