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Driving circuit and lighting circuit of LED lamp

A driving circuit and LED lamp technology, which is applied in the field of lighting, can solve the problems of multiple deployment of capacitors, high heat generation, and reduced lifespan of LED lighting systems

Active Publication Date: 2014-07-02
LANGFANG SANTIAN ELECTRIC APPLIANCE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides an LED lamp driving circuit and a lighting circuit, which solves the problem of reducing the service life of the LED lighting system caused by the deployment of more capacitors in the driving circuit and high heat generation in the prior art.

Method used

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  • Driving circuit and lighting circuit of LED lamp
  • Driving circuit and lighting circuit of LED lamp
  • Driving circuit and lighting circuit of LED lamp

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Embodiment Construction

[0019] In order to effectively improve the service life of the LED lighting system, an embodiment of the present invention provides an LED lamp driving circuit and a lighting circuit.

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0022] figure 1 A driving circuit structure diagram of an LED lamp provided by an embodiment of the present invention, the drivin...

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Abstract

The embodiment of the invention provides a driving circuit and a lighting circuit of an LED lamp. The problem that in the prior art, due to the facts that many capacitors are arranged in a driving circuit, and much heat is generated, service life of an LED lighting system is shortened is solved. The driving circuit comprises a zero passage detector, a frequency detector, a pulse width modulation (PWM) module, a PWM generator, an LED current reference module and an MOSFET transistor set, and the LED lamp is driven through connecting relations among all the components. Because no capacitor device is adopted in the driving circuit, the problem that the capacitor device generates heat after being used too long is avoided, and therefore service life of a lighting system can not be affected.

Description

technical field [0001] The invention relates to the technical field of illumination, in particular to a driving circuit and an illumination circuit of an LED lamp. Background technique [0002] As a green, energy-saving, power-saving, and long-life fourth-generation lighting fixture, LED light source has suddenly emerged, and has attracted wide attention and is developing rapidly. The current LED light source is a low-voltage, high-current semiconductor device that must provide a suitable DC to emit light normally. [0003] When driving the LED light source in the prior art, a lot of capacitors will be deployed on the driving circuit board to provide voltage for the LED light source through charging and discharging of the capacitors, but the capacitors will release heat during operation, causing the temperature of the LED lighting system to rise. The life of components will be significantly shortened if they work in a high temperature environment for a long time. Especiall...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02
CPCH05B45/44
Inventor 刘兴俊赵炳道南宰佑
Owner LANGFANG SANTIAN ELECTRIC APPLIANCE