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Electronic ballast circuit adaptable to common light adjustor to adjust light

A technology of electronic ballasts and dimmers, which is applied in the direction of light sources, electric light sources, electrical components, etc., can solve the problems of shortened lifespan and blackened cathodes, and achieve prolonged lifespan, low manufacturing cost, widened use places and applicable range effect

Inactive Publication Date: 2009-12-09
刘军
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

cause early cathode blackening
shortened lifespan

Method used

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  • Electronic ballast circuit adaptable to common light adjustor to adjust light
  • Electronic ballast circuit adaptable to common light adjustor to adjust light
  • Electronic ballast circuit adaptable to common light adjustor to adjust light

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Embodiment

[0031] Such as figure 2 , 3 Shown: an electronic ballast circuit of the present invention suitable for dimming by ordinary dimmers, including a power input circuit A, a switch circuit C and a resonant output circuit D, characterized in that: the power input circuit A and There is a correction and adjustment loop B between the switch loops C, and the resonant output loop D also includes a cathodic protection circuit, that is, a filament protection loop E.

[0032] In the correction and adjustment loop B, there is a high-voltage capacitor 201 and a high-frequency diode 202 connected in parallel and connected in series in the positive loop of the rectified DC power supply. Its function is to correct and improve the power factor of the line, thereby reducing the peak current of the circuit.

[0033] In the correction and adjustment circuit, there are also a high-frequency diode 205, a high-voltage capacitor 206, and a coil 207 connected in parallel and connected in series in th...

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PUM

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Abstract

The invention discloses an electronic ballast circuit adaptable to a common light adjustor to adjust light, which comprises a power supply input circuit, a switching loop and a resonance output loop. The electronic ballast circuit is characterized in that: a correcting adjustment loop is arranged between the power supply input circuit and the switching loop; and simultaneously the resonance output loop also comprises a cathodic protection circuit, namely a filament protection loop. The electronic ballast circuit adaptable to the common light adjustor to adjust light, which can be used for adjusting an energy saving lamp and also can be independently used as an electronic ballast of a lighting accessory, has the advantages of low manufacturing cost, wide light adjusting range and stable performance and prolongs the service life of a lamp.

Description

technical field [0001] The invention belongs to the technical field of lighting appliances, and in particular relates to an electronic ballast circuit suitable for dimming by common dimmers. Background technique [0002] As we all know, incandescent bulbs can be used for dimming, but ordinary energy-saving lamps cannot be used for dimming. To truly completely replace incandescent bulbs, energy-saving lamps must have the feature of dimming. That is, the electronic ballast inside the energy-saving lamp should have the dimming characteristics compatible with the dimmer. Regarding the dimming feasibility analysis and dimming principle of dimming energy-saving lamps, the applicant published the "Feasibility of Dimming CFL Products" in the first issue of China's "Journal of Lighting Engineering" in 2007 and the third issue of "China Lighting Appliances" in 2007. Analysis and Market Prospects have been elaborated in the article. [0003] The voltage types of energy-saving lamps ...

Claims

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Application Information

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IPC IPC(8): H05B41/38
Inventor 刘军
Owner 刘军
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