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Drive circuit with emergency power supply for fluorescent lamp for tree growth

An emergency power supply and drive circuit technology, applied in the field of agricultural planting, can solve the problems of the lighting system not working normally, affecting the luminous effect, and small output current, and achieving the effects of preventing interference, high safety, and stable current.

Inactive Publication Date: 2015-05-13
霍州市杨有锁苗木种植专业合作社
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  • Abstract
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Problems solved by technology

[0003] Generally, in the drive circuit of fluorescent lamps, the working power of fluorescent lamps is obtained by stepping down the power supply. At present, the existing fluorescent lamp drive circuits are relatively complicated. The working principle of the circuit is to use the capacitive reactance generated by the capacitor at a certain frequency of the AC signal to limit the maximum operating current. The piezoelectric power supply is a non-isolated power supply with low safety. Moreover, the high-frequency noise and sudden changes in voltage in the working circuit of the fluorescent lamp will affect its luminous effect. In addition, when the power supply of the fluorescent lamp is abnormal and the circuit is broken, the entire The lighting system will not work normally, so some measures need to be taken in the fluorescent lamp drive circuit to provide a stable and uninterrupted working current for the fluorescent lamp

Method used

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  • Drive circuit with emergency power supply for fluorescent lamp for tree growth

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Embodiment Construction

[0012] Such as figure 1 As shown, the drive circuit of a fluorescent lamp for tree growth with an emergency power supply includes: a rectification filter circuit 1, a step-down circuit 2 and a light source circuit 3, the drive circuit also includes an emergency circuit 4, and the rectification filter circuit 1 includes a bridge Type rectifier bridge T1, capacitor C1 and resistor R1, the step-down circuit 2 includes diode D1, inductor L1 and capacitor C2, the emergency circuit 4 includes diode D2, relay KJ1, resistor R2 and emergency power supply M1, the bridge The AC input end of the rectifier bridge T1 is connected to the 220V mains power supply, and the positive end of the DC output of the bridge rectifier bridge T1 is connected in parallel with one end of the capacitor C1, one end of the resistor R1 and the negative pole of the diode D1, and then connected with one end of the inductor L1, The other end of the inductance L1 is connected in parallel with one end of the capaci...

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Abstract

The invention relates to a drive circuit with emergency power supply for a fluorescent lamp for tree growth. The technical problem to be solved is that the provided drive circuit with the emergency power supply for the fluorescent lamp for tree growth is simple in structure and capable of providing stable and ceaseless current for the fluorescent lamp. The drive circuit with the emergency power supply for the fluorescent lamp for tree growth comprises a rectifier-filter circuit, a step-down circuit, a light source circuit, and an emergency circuit; the drive circuit is suitable for the field of agricultural trees.

Description

technical field [0001] The invention relates to the field of agricultural planting, in particular to a drive circuit for a fluorescent lamp for tree growth with an emergency power supply. Background technique [0002] In modern agriculture, in order to meet the growth needs of trees, multiple groups of lamps are often installed for lighting. Fluorescent lamps are widely used in the field of agricultural lighting because of their relatively large irradiation area and good lighting effects. [0003] Generally, in the drive circuit of fluorescent lamps, the working power of fluorescent lamps is obtained by stepping down the power supply. At present, the existing fluorescent lamp drive circuits are relatively complicated. The working principle of the circuit is to use the capacitive reactance generated by the capacitor at a certain frequency of the AC signal to limit the maximum operating current. The piezoelectric power supply is a non-isolated power supply with low safety. Mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B41/36H05B41/46A01G7/04
CPCY02P60/14
Inventor 杨有锁乔桂平张菁张云峰李保春翟春明李明刘丰勤赵成兵陈彦兵张忠华杨连桂陈燕奇刘忠华杨晓丽赵基海杨晓斌解莹杨红斌郭晓筠
Owner 霍州市杨有锁苗木种植专业合作社
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