Sectionalized dimming device of LED (light-emitting diode) lamp
A segmented dimming and LED lamp technology, which is applied to lighting devices, lamp circuit layout, light sources, etc., can solve the problem of single luminous flux function, and achieve the effects of good scalability, rich adjustment functions, and good versatility
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Embodiment 1
[0036] Such as Figure 1 to Figure 3 Shown is a schematic diagram of Embodiment 1 of the present invention. in, figure 1 is an overview of its overall structure, figure 2 yes figure 1 The structure and details of the main load 32 and the secondary load 33, image 3 then shows figure 1 The circuit structure of the LED driver 31.
[0037] figure 1 is a complete scheme. It includes a mains interface 10 , a thyristor dimmer 20 and a lamp 30 . The thyristor dimmer 20 is placed on an indoor wall, and its input end is connected to the live wire and neutral wire of the mains through the mains interface 10 . The thyristor dimmer 20 outputs a chopping waveform through the AC terminal 21 , and the chopping waveform changes with the adjustment of the thyristor dimmer 20 .
[0038] The lamp 30 is a whole, which includes a light source and components for controlling the light source, and has an LED driver 31 connected to the AC terminal 21 through embedded wires. The LED driver 31...
Embodiment 2
[0049] Such as Figure 4 and Figure 5 Shown is a schematic diagram of Embodiment 2 of the present invention.
[0050] This embodiment is the same as the first embodiment, and both are connected to the mains interface through a dimmer, so details are not described in the figure. Figure 4 In the lamp 30, the main load 32 is the same as that in the first embodiment, but the difference is that the secondary load includes multiple levels, including two levels of secondary loads, 33 and 43 respectively.
[0051] In particular, the secondary load of this embodiment is a cascaded multi-stage form, and the input end of the secondary load 43 is connected in parallel with the two ends of the LED light source 35 in the secondary load 33 of a previous stage to form a subsequent stage; the stage of the load Contact form such as Figure 5 The connection between the constant current module 34 of the secondary load 33 and the secondary LED light source 35 is connected to both ends of the ...
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