Multi-input LED lamp tube drive circuit
A technology of LED lamps and driving circuits, applied in the field of electronic science, can solve the problems of single traditional circuit of different LED lamps and the inability of traditional driving circuits to drive at the same time, and achieves the effect of saving manpower and material resources, strong practicability and convenient operation.
Active Publication Date: 2016-11-09
江苏林洋综合能源服务有限公司
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Problems solved by technology
[0003] Purpose of the invention: In order to solve the problem that the traditional drive circuit cannot drive different LED tubes at the same time when replacing different LED tubes, and needs to replace the drive circuit and the single power input of the traditional circuit at the same time, the present invention provides a simple structure, convenient use, and practical Strong multiple input mode LED lamp drive circuit
Method used
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Embodiment 1
[0014] The specific principle of the circuit of Embodiment 1 is as follows:
[0015] The first input terminal INPUT1, the first fuse F1, the first capacitor C1, the second capacitor C2, the second input terminal INPUT2, the third capacitor C3, and the fourth capacitor C4 constitute the ballast step-down circuit 01; The tube D1, the second diode D2, the third diode D3, the fourth diode D4, the fifth diode D5, and the sixth diode D6 constitute the rectification circuit 02, and the fifth capacitor after filtering C5 flows into the buck-boost drive module 03, and transmits electric energy to the LED light tube to make the LED light tube emit light. The multi-input LED lamp tube driving circuit of the present invention can adopt two power input modes of commercial power and electronic ballast. The working modes of the two kinds of power input are: 1. When the input voltage is connected to the mains, when the first input terminal INPUT1 is connected, it passes through the first dio...
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The invention discloses a multi-input LED lamp tube drive circuit. The multi-input LED lamp tube drive circuit comprises a ballast voltage reduction circuit, a rectifying circuit and a buck-boost drive module. The ballast voltage reduction circuit is used for reducing ballast output high voltage for the drive circuit to work normally in a capacitive voltage dividing manner, the rectifying circuit is used for realizing two power supply input modes such as commercial power and an electronic ballast in a full-wave rectification manner so as to obtain direct-current voltage to be input to the buck-boost drive module to drive an LED chip, an LED lamp tube using the drive circuit can be used for replacing a traditional fluorescent lamp tube directly, and the LED lamp tube can be directly replaced and installed after bought by a consumer, but an ordinary LED lamp tube is replaced for use after circuit modification, so that the using cost is reduced, and the LED lamp tube has higher economic practicality.
Description
technical field [0001] The invention belongs to the field of electronic science and technology, and in particular relates to a driving circuit for an illuminating lamp. Background technique [0002] With the continuous development of electronic technology, lighting LED lamp technology is also constantly improving, and gradually tends to the development of new LED lamps with low power consumption and long life. However, the traditional LED lamp drive circuit cannot drive the LED at the same time when driving the traditional LED lamp tube. When replacing different LED tubes, the traditional drive circuit cannot drive different LED tubes at the same time and needs to be replaced at the same time; the traditional drive circuit uses the mains as the power supply voltage, and cannot take the output of the electronic ballast as the power input at the same time. The realization of the invention of the circuit can solve the defect that the driving circuit needs to be replaced at the ...
Claims
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IPC IPC(8): H05B33/08H05B44/00H05B45/34H05B45/375H05B45/38
CPCH05B45/37
Inventor 施洪生周详曾祥波史衍昆朱凯
Owner 江苏林洋综合能源服务有限公司