Spotlight driving circuit and spotlight

A driving circuit and spotlight technology, which is applied in the layout of electric lamp circuits, electric light sources, lighting devices, etc., can solve the problems of energy waste and achieve high PF value

Inactive Publication Date: 2014-01-15
SHENZHEN TOP TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For traditional GU10 series spotlights with a rated power of 3W, in order to save costs, usu

Method used

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  • Spotlight driving circuit and spotlight
  • Spotlight driving circuit and spotlight
  • Spotlight driving circuit and spotlight

Examples

Experimental program
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Embodiment Construction

[0018] In order to make the objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0019] figure 1 It is a schematic diagram of the circuit structure of the spotlight drive circuit in an embodiment. The spotlight drive circuit 100 includes a rectification filter module 10, a power factor correction module 20, a primary side energy storage filter unit 22, a secondary energy storage filter unit 32 and a winding energy storage filter unit 24 . The primary energy storage filter unit 22 includes a primary coil 222, the secondary energy storage filter unit 32 includes a secondary coil 322, the winding energy storage filter unit includes a winding coil 242, and the primary coil 222, the secondary coil 322 and the winding coil 242 are composed of transformer. The rectification filter module 10 is connected to the primary side en...

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PUM

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Abstract

The invention relates to a spotlight driving circuit. The spotlight driving circuit comprises a rectifier filter module, a power factor correction module, a primary side energy storage filter unit, a secondary energy storage filter unit and a winding energy storage filter unit. The primary side energy storage filter unit comprises a primary side coil. The secondary energy storage filter unit comprises a secondary coil. The winding energy storage filter unit comprises a winding coil. A transformer is formed by the three coils. The rectifier filter module is used to perform rectification and filtration on inputted electric energy and then output direct current to the power factor correction module. The power factor correction module is used to output the current which is subjected to power factor correction to the primary side coil. The secondary coil is used to generate an induced voltage and output the induced voltage to an LED light source. The winding coil is also used to generate an induced voltage to maintain the input voltage of the power factor correction module. The invention further relates to a spotlight. According to the invention, the current of the primary side coil of the transformer is controlled through the power factor correction module, so a high PF(power factor) value can be obtained, so that the effect of energy saving can be achieved.

Description

technical field [0001] The invention relates to lighting equipment, in particular to a spotlight driving circuit, and also to a spotlight. Background technique [0002] A spotlight is a lighting fixture without a main light. For traditional GU10 series spotlights with a rated power of 3W, in order to save costs, usually the PF (power factor) value can only reach about 0.5~0.6, resulting in a waste of energy. Contents of the invention [0003] Based on this, it is necessary to provide a spotlight driving circuit with a high PF value. [0004] A spotlight driving circuit, comprising a rectification filter module, a power factor correction module, a primary energy storage filter unit, a secondary energy storage filter unit, and a winding energy storage filter unit; the primary energy storage filter unit includes a primary coil, The secondary energy storage filter unit includes a secondary coil, the winding energy storage filter unit includes a winding coil, and the primary ...

Claims

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Application Information

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IPC IPC(8): H05B37/02
CPCY02B20/40
Inventor 庞桂伟唐义国阮静
Owner SHENZHEN TOP TECH
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