A three-stage light-emitting diode circuit
A light-emitting diode and circuit technology, applied in the direction of electroluminescent light source, light source, electric light source, etc., can solve the problems of unfavorable assembly, complex circuit, high cost, etc., reduce heat dissipation and circuit occupation space, simplify circuit structure, and reduce production cost Effect
Active Publication Date: 2018-06-29
吴光敏
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Problems solved by technology
To replace this kind of incandescent lamp, LED lamps need to use two internal power supplies to achieve this function. Generally, LED lamps have a large number of power supplies, complex circuits, and take up a large space in the lamp body, which is not conducive to assembly and disadvantages. Problems of heat dissipation and high cost
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[0035] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0036] In a preferred embodiment, as figure 1 As shown, a three-stage light-emitting diode circuit is proposed, and the three-stage light-emitting diode circuit may include:
[0037] The AC power access circuit 1 may include a first live wire, a second live wire, and a neutral wire, and the first live wire, the second live wire, and the neutral wire are controllably connected to an AC power supply to output an AC signal;
[0038] The rectifier circuit 2 includes an AC side and a DC side; the AC side of the rectifier circuit 2 can be connected to the AC power access circuit 1, and is used to convert the AC signal to AC and then output it from the DC side;
[0039] The voltage sampling circuit 3 is connected to the first live line and / or the second live line of the AC power access circuit 1, and is used to sample the signal on the first live line and / or ...
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The present invention relates to the field of light-emitting diode lighting, in particular to a three-stage dimming light-emitting diode circuit, including: an AC power access circuit, a rectification circuit, a voltage sampling circuit and a control circuit, and an AC power access circuit, including a first fire wire , a second live wire, a neutral wire, the first live wire, the second live wire and the neutral wire are controllably connected to an AC power supply to output an AC signal, the rectifier circuit includes an AC side and a DC side, and the AC side is connected to the AC power supply circuit connection, the voltage sampling circuit is connected to the first live wire and / or the second live wire of the AC power supply access circuit, the control circuit is connected to the voltage sampling circuit to receive the detection voltage value, and the control circuit outputs the corresponding drive according to different detection voltage values signals, so as to use different driving signals to drive at least one light emitting diode to adjust among the first brightness, the second brightness and the third brightness under the power supply of the DC side of the rectification circuit.
Description
technical field [0001] The invention relates to the field of light-emitting diode lighting, in particular to a three-stage dimming light-emitting diode circuit. Background technique [0002] The traditional three-stage dimming incandescent lamp structure uses two-stage filaments, three input lines and mechanical switches, and realizes different combinations through different power-on sequences to achieve three functions of luminous flux. To replace this kind of incandescent lamp, LED lamps need to use two internal power supplies to achieve this function. Generally, LED lamps have a large number of power supplies, complex circuits, and take up a large space in the lamp body, which is not conducive to assembly and disadvantages. Problems of heat dissipation and high cost. Contents of the invention [0003] In view of the above problems, the present invention proposes a three-stage dimming light-emitting diode circuit, including: [0004] AC power access circuit, including ...
Claims
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IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/00H05B45/10
Inventor 朱明星
Owner 吴光敏