Multiloop control circuit and control method thereof
A technology of control circuit and control method, which is applied in the direction of electric lamp circuit layout, electric light source, lighting device, etc., can solve the problems of small decorative lamp, waste of main line, complicated circuit design, etc., and achieve simplified circuit structure, reduced cost, beautiful appearance and coordination Effect
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Embodiment 1
[0039] Please refer to image 3 As shown, in this embodiment, the multi-loop control circuit of the present invention includes a rectification unit 4 connected to the alternating current AC_IN, four main lines L1, L2, L3, L4 respectively connected to the output terminals of the rectification unit 4 and voltage regulators Filtering unit 5. Two groups of LEDs connected in parallel at one end of any two main lines on the four main lines L1, L2, L3, L4, wherein the polarity of the two groups of LEDs is opposite, a total of 16 LED diodes D1 to D16, on the four main lines L1 The other end of , L2, L3, L4 is also connected with the first control switch 1 and the second control switch 2, the input ends of the first control switch 1 and the second control switch 2 are respectively connected with the output end of the control unit 3, the 12V The power supply terminal is connected to the main line through the first control switch 1, and the main line is grounded through the second contro...
Embodiment 2
[0052] Please refer to the attached Figure 4 , 5 , 6, the present invention also provides a decorative lamp using the multi-loop control circuit described in Embodiment 1, the decorative lamp includes at least two main wires, a controller 15, a power wire 60 connected externally to the controller 15, and a The lamp tube 22 that controller 15 is connected, comprises control circuit board 70 (this control circuit board is an optional component) and the control chip 75 that is arranged on this control circuit board 70 in the controller 15, and this control chip 75 can choose model It is the CPU of 78P153, and the control chip 75 is the control unit 3 in the first embodiment. The control circuit board 70 also includes multiple groups of control switches electrically connected to the control unit 3, and each group of control switches includes the first control switch and a second control switch, the first end of each main line is connected to the power supply end through the firs...
Embodiment 3
[0062] Please refer to Figure 7 , 8 , 9, and 10 show that the present invention is another decorative lamp using the multi-loop control circuit described in Embodiment 1. The difference between this embodiment and Embodiment 2 is that it does not need to be installed outside the lamp tube in Embodiment 2. Instead, the control circuit board in the controller is directly installed in the lamp tube; the decorative lamp in this embodiment includes a control circuit board 70 and four main wires 40, 41, 42 connected to the control circuit board 70 , 43 and two groups of LEDs connected in parallel on any two main lines, the polarity of the two groups of LEDs is opposite, the control circuit board 70 includes a control unit 3, a plurality of groups of control switches connected with the control unit 3, each group of control switches includes The first control switch and the second control switch, the four main lines 40, 41, 42, 43 are respectively connected to each group of control ...
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