LED panel lamp
A technology of LED panel light and LED light group, which is applied in the direction of electric light circuit layout, lighting device, light source, etc., can solve the problems of single light change, inapplicability, and poor decorative effect of panel light, so as to achieve good decorative effect, cost saving, Ease of use
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Embodiment 1
[0019] Embodiment one: if Figure 1 ~ Figure 4 As shown, an LED panel light includes a driving circuit 1, a control circuit 2, a frame body 3, a light guide plate 4 disposed in the frame body 3, an LED light emitting unit 6 disposed on the periphery of the light guide plate 4, and the LED light emitting unit 6 Located between the light guide plate 4 and the frame body 3, the drive circuit 1 is connected to the control circuit 2, and the frame body 3 is also provided with a diffuser plate 5 parallel to the light guide plate 4 and with a certain interval, and the LED light emitting unit 6 is composed of a plurality of LED lamps The LED light emitting unit 6 can emit red, green and blue light. The control circuit 2 includes a master control unit 21 and a plurality of slave control units 22. The master control unit 21 is connected to a plurality of slave control units 22, and a plurality of slave control units The unit 22 is connected to a plurality of LED lamp groups 61 in one-to...
Embodiment 2
[0023] Embodiment 2: The present invention is basically the same as Embodiment 1, except that the slave control unit 22 is composed of a TM1812 chip, fourteen resistors (R1-R14) and a capacitor C1. Such as Figure 5 As shown, the TM1812 chip has sixteen connecting pins. The first connecting pin of the TM1812 chip is respectively connected to the power supply through a resistor R13 and grounded through a capacitor C1. The second connecting pin of the TM1812 chip is connected to the power supply through a resistor R14. The main control unit 21 is connected, the third connecting pin of the TM1812 chip is the signal output terminal, and the fourth connecting pin to the fifteenth connecting pin of the TM1812 chip are connected with twelve resistors R1~R12 one by one. The LED lamp group is composed of twelve LED lamps D1-D12, and the twelve resistors R1-R12 are connected to the cathodes of the twelve LED lamps D1-D12 in one-to-one correspondence.
[0024] The working principle of t...
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