Universal type gas discharge lamp dimming apparatus

Abstract

The invention discloses a universal type gas discharge lamp dimming apparatus. The dimming apparatus is arranged at the input front end of a lamp; the dimming apparatus is a controllable power regulator; the controllable power regulator comprises an electronic transformer and a single chip microcomputer; the electronic transformer is connected with the single chip microcomputer; the controllable power regulator is connected with a ballast through a conversion circuit; the conversion circuit is divided into two paths, wherein one path converts alternating current mains supply into a direct current to be output while the other path converts a direct current voltage into alternating current square wave to be output; the conversion circuit automatically switches circuits according to types of the ballasts; if the ballast is an electronic ballast, the direct current is output; and if the ballast is an inductive ballast, 50HZ alternating current square wave is output. The dimming apparatus disclosed in the invention is a totally electronic control apparatus, and has the characteristics of high power factor, stable output power, capability of realizing remote control and prolonging service life of the lamp, high efficiency and the like.

Description

Technical field [0001] The invention relates to a general-purpose gas discharge lamp dimming device, which belongs to the technical field of lamp design and processing. Background technique [0002] Dimming of gas discharge lamps has been a research aspect of lamp energy saving in recent years. There are many ways and methods to achieve in practice. The existing dimming methods include: 1) Directly adjust the effective value of the output voltage Dimming, such as phase control dimming, sine wave voltage dimming. 2). Dimming is carried out through the auxiliary parts (ballast or transformer) of the electric light source lamp, such as fluorescent lamp dimming, low-voltage tungsten halogen lamp dimming. 3) Use low-voltage pulse width modulation (PWM) waves to dim LED lights. [0003] At present, two kinds of ballasts are widely used in gas discharge lamps, one is electronic ballast and the other is inductive ballast; as long as their output power can be controlled, the lamp can be d...

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Problems solved by technology

[0003] Two types of ballasts are widely used in gas discharge lamps, one is electronic ballasts and the other is magnetic ballasts; as long as their output power can be controlled, the lamps can be dimmed and controlled, but for different manufacturers, due to Manufacturers use different types of ballasts for lighting and lamp control, making it very difficult to use the same control device to adjust the output power of lamps from different manufacturers

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