Advertisement light emitting device
A technology for light-emitting devices and advertising, applied in circuit devices, instruments, electrical components, etc., can solve the problems that advertising boxes or display curtain walls cannot be repaired, LED lights are easily damaged, and production costs are high, so as to facilitate installation, subsequent maintenance, and transmission. High efficiency and low cost effect
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[0031] This embodiment provides an advertising lighting device, which includes a display curtain wall, colorful LED lamp beads, an external power supply, an integrated step-down circuit board, a transmitting coil, an oscillating circuit, a driving circuit, a transmitting terminal resonance circuit, a first modulation circuit and a second modulation circuit. A signal processing unit, a receiving coil, a receiving end resonant circuit, a rectifying circuit, a second modulation circuit, a second signal processing unit and a microprocessor,
[0032] Among them, the wire diameter of the transmitting coil is 1mm, the coil diameter is 800mm, and the number of turns is 5 turns; the wire diameter of the receiving coil is 1mm, the coil diameter is 1mm, and the number of turns is 15 turns, and the receiving coil and the transmitting coil maintain the same resonance frequency The colorful LED lamp beads are pasted on the display curtain wall, and the colorful LED lamp beads are connected i...
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