led dimming drive circuit
A dimming drive and circuit technology, applied in the field of lighting, can solve problems such as no technical inspiration, achieve the effects of improving reliability and safety, enhancing the ability to resist electromagnetic disturbance, and improving utilization efficiency
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[0063] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many of the details listed in the specification are only for readers to have a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.
[0064] figure 1 A schematic diagram showing the principle of an AC dimming drive circuit for LEDs according to an embodiment of the present invention. Such as figure 1 As shown, the AC dimming driving circuit includes a rectifying unit 12 , a first voltage sampling unit 14 , a first switching unit 16 and a first LED light source module 18 . The rectification unit 12 includes four diodes, and the four diodes form a bridge rectification circuit. Alternatively, t...
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