Overvoltage protection-based electronic energy-saving lamp starting system

An electronic energy-saving lamp and start-up system technology, applied in the field of start-up circuit, can solve problems such as poor harmonic suppression ability and unstable output power, and achieve the effects of low production cost, prolonging service life and ensuring stability

Inactive Publication Date: 2018-02-09
CHENGDU JIESHENG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects that the existing LED lamp starting circuit has poor harmonic suppression ability in the input voltage and the output power is unstable, and provides an electronic energy-saving lamp starting system based on overvoltage protection

Method used

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  • Overvoltage protection-based electronic energy-saving lamp starting system
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Embodiment Construction

[0014] The present invention will be described in further detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0015] Such as figure 1 As shown, the present invention mainly consists of transformer T, diode rectifier U, triode VT1, triode VT2, overvoltage protection circuit, resistor R1, resistor R2, resistor R3, resistor R4, resistor R5, adjustable resistor R6, resistor R7, resistor R8 , Resistor R9, polarized capacitor C1, polarized capacitor C2, polarized capacitor C3, polarized capacitor C4, polarized capacitor C5, polarized capacitor C6, diode D1, diode D2, and inductor L.

[0016] In order to ensure the actual use effect of the present invention, the transformer is an EI57-30 step-up transformer; at the same time, the adjustable resistance range of the adjustable resistor R6 is 1-4M; the diode rectifier U is a full-wave three-phase rectifier MT3510W; , the transistor VT1 a...

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Abstract

The invention discloses an overvoltage protection-based electronic energy-saving lamp starting system. The electronic energy-saving lamp starting system mainly consists of a transformer T, a diode rectifier U, a triode VT1, a triode VT2, an overvoltage protection circuit, a polar capacitor C3, an inductor L2, a polar capacitor C4 and the like, wherein the negative electrode of the polar capacitorC4 passes through an inductor L5 to be connected with the non-dotted terminal of a secondary side inductor coil L4 of the transformer T while the positive electrode is connected with the overvoltage protection circuit. By performing filtering of two times on the input voltage, the harmonic in the voltage can be well suppressed effectively; and in addition, by adjusting the output voltage and current, the output voltage and current can be more stable and smooth, thereby effectively ensuring the luminance stability when the LED lamp is turned on, well satisfying requirements of people, and highly prolonging the service life of the LED lamp.

Description

technical field [0001] The invention relates to a starting circuit, in particular to an electronic energy-saving lamp starting system based on overvoltage protection. Background technique [0002] As a new type of energy-saving light source, electronic energy-saving lamps have been widely accepted and adopted by people for their environmental protection, energy-saving, long life, and small size. LED lamp is a sensitive semiconductor device with negative temperature characteristics. Therefore, in the application process, the LED lamp startup circuit plays a very important role in promoting the stable working state and service life of the LED lamp. However, the existing LED lamp starting circuit has a poor ability to suppress harmonics in the input voltage, and the existing LED lamp starting circuit also has the problem of unstable output power, which causes the brightness of the LED lamp to flicker when it is lit. Thereby having a strong impact on people's life and the servi...

Claims

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Application Information

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IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/50H05B45/37Y02B20/30
Inventor王丹
OwnerCHENGDU JIESHENG TECH CO LTD