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Electronic ballast of low-frequency nonpolar lamp

An electronic ballast and low-frequency electrodeless lamp technology, applied in the field of lighting, can solve the problems of poor protection function, high damage rate of the ballast, and high ignition voltage, and achieve the effects of improved service life and high accuracy

Inactive Publication Date: 2014-12-31
CHENGDU JUSHANG ENERGY SAVING TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, because the electrodeless lamp has no filament, it works in the electromagnetic coupling induction mode, and the starting voltage is high, so the design of the electronic ballast for the electrodeless lamp is difficult. Most of the existing ballasts for the electrodeless lamp use energy-saving lamp control chips. The frequency is fixed, and the abnormal protection function is poor, so that the damage rate of the ballast is very high

Method used

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  • Electronic ballast of low-frequency nonpolar lamp
  • Electronic ballast of low-frequency nonpolar lamp
  • Electronic ballast of low-frequency nonpolar lamp

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Embodiment Construction

[0022] Embodiments of the present invention will now be described with reference to the drawings, in which like reference numerals represent like elements. As mentioned above, the present invention provides an electronic ballast for low-frequency electrodeless lamps. The electronic ballast for low-frequency electrodeless lamps uses MCU as the main control chip, and adopts AD acquisition control as the abnormal protection circuit, which has high precision and can make the ballast The flow life is greatly improved.

[0023] Figure 1 to Figure 4 An embodiment of a low-frequency electrodeless lamp electronic ballast of the present invention is shown. First please refer to figure 1 , is the principle block diagram of the low frequency electrodeless lamp electronic ballast of the present invention. The low-frequency electrodeless lamp electronic ballast 100 includes an EMC anti-jamming circuit 101, a PFC power factor correction circuit 102 and an MCU control circuit 103, and the...

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Abstract

The invention discloses an electronic ballast of a low-frequency nonpolar lamp. The electronic ballast comprises an electromagnetic compatibility (EMC) anti-jamming circuit, a power factor correction (PFC) power factor correcting circuit and a micro control unit (MCU) control circuit. The EMC anti-jamming circuit is connected between an external power supply and the PFC power factor correcting circuit and is used for processing an electromagnetic interference signal. The PFC power factor correcting circuit is connected with the MCU control circuit and is used for acquiring a direct-current signal with a high power factor and then the MCU control circuit generates an alternating-current signal to lighten the nonpolar lamp. The MCU control circuit comprises an abnormal protection circuit and is used for protecting the ballast from being damaged in case of high current in the circuit.

Description

technical field [0001] The invention relates to the field of illumination, and more specifically relates to an electronic ballast for a low-frequency electrodeless lamp. Background technique [0002] As we all know, after Edison invented the carbon filament incandescent lamp in 1879, lighting technology entered a new era. Looking back at the history of lighting in the 20th century, new light sources such as tungsten-halogen lamps, fluorescent lamps, high-pressure mercury lamps, metal halide lamps, and compact fluorescent lamps emerged in an endless stream. However, the high-frequency electrodeless lamp, which stands out in the field of "green lighting" in the 21st century, has entered our daily life with its characteristics of high luminous efficiency, high color rendering, long life, no flicker, energy saving, environmental protection, shockproof, and minimal maintenance. Life. [0003] The electrodeless lamp is a new type of light source that combines the two principles ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F38/10H05B41/285H02M1/42
CPCY02B70/126Y02B70/10
Inventor 盛平振曹智多
Owner CHENGDU JUSHANG ENERGY SAVING TECH CO LTD
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