Multifunctional ballast

A ballast and multi-functional technology, applied in the field of multi-functional ballasts, can solve the problems of difficult conversion and control of multiple lamps, and achieve the effects of easy conversion and control, simple operation, and extended working life.

Inactive Publication Date: 2016-07-06
徐承金
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ring tube fluorescent lamps are generally spliced ​​by several sections of fluorescent tubes, and the ...

Method used

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  • Multifunctional ballast
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Examples

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Embodiment Construction

[0029] For a better understanding of the present invention, the following examples are used to illustrate.

[0030] refer to figure 2 , which illustrates a multi-functional ballast provided by the present invention, including sequential electric

[0031] The connected AC-DC conversion circuit, filter rectifier circuit, reverse converter, and output terminal, the multifunctional ballast also includes an electromagnetic filter circuit used to suppress the pollution of the power grid by high-frequency current harmonics, in order to improve the power factor , a power correction circuit that reduces harmonics and realizes constant power output, a short circuit protection device, the electromagnetic filter circuit is connected between the voltage input terminal and the AC-DC conversion circuit, and the power correction circuit is connected between the AC-DC conversion circuit and the filter Between the rectifier circuits, the short circuit protection circuit is set in the reverse ...

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Abstract

The invention discloses a multifunctional ballast comprising an alternating current-direct current conversion circuit, a filter rectifier circuit, a reverse converter, an output terminal, an electromagnetic filter circuit, a power correction circuit, and a short circuit protection device. The electromagnetic filter circuit is connected between a voltage input terminal and the alternating current-direct current conversion circuit; the power correction circuit is connected between the alternating current-direct current conversion circuit and the filter rectifier circuit; and the short circuit protection device is arranged in the reverse converter. According to the invention, two multifunctional ballasts are arranged in a same multifunctional ballast module and are controlled by a multifunctional ballast control circuit connected with the multifunctional ballasts, thereby realizing starting, shutdown, and crossed exchange functions of the two multifunctional ballasts. Besides, the multifunctional ballast also has functions of high instantaneous spike pulse or strong thunder interference resistance, effective surge current suppression, multi-load outputting, delayed starting, and prolonged lamp service life.

Description

technical field [0001] The invention relates to a multifunctional ballast, in particular to a multifunctional ballast for fluorescent lamps. Background technique [0002] In the current lighting industry, the existing general-purpose multifunctional ballast is composed of electrical components such as power capacitors, normally closed thermal switches, and thermal resistance coils. This multifunctional ballast has strong vibration noise and temperature And there is light flickering, when the power is turned on, the lamp cannot be lighted up quickly, and because the mains voltage is unstable, the multi-functional ballast and the lamp are easy to burn out, causing losses to users. [0003] At present, fluorescent lamps are widely used because of their energy saving and good luminescence, and multifunctional ballasts are indispensable devices for daylight lighting. When starting (the moment when the starter is disconnected), the multi-functional ballast will generate a higher ...

Claims

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Application Information

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IPC IPC(8): H05B41/14
Inventor 郑水花徐承金
Owner 徐承金
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