HID electronic ballast and lighting device with same

An electronic ballast and low-frequency current technology, applied in the field of metal halide lamp arc tube lighting devices, can solve problems such as obstacles, achieve the effect of simple circuit, avoid pulse high-voltage shock and EMC and EMI electromagnetic interference, and overcome acoustic oscillation

Inactive Publication Date: 2014-03-26
陈枕流
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Problems solved by technology

Therefore, extremely complex DC/DC conversion, DC/AC full-bridge inverter, PWM control and other circuits are used here to control the acoustic oscillation; due to the start-up process of the metal halide lamp, the electronic ballast is required to provide a sufficiently high driving voltage to generate The arc breaks down to make the mixed gas in the lamp tube glow discharge, and can provide enough energy to convert the glow discharge into arc discharge. It adopts LC series/parallel resonant high voltage pulse ignition circuit an

Method used

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  • HID electronic ballast and lighting device with same
  • HID electronic ballast and lighting device with same
  • HID electronic ballast and lighting device with same

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Embodiment Construction

[0040] Embodiments of the present invention will be described below with reference to the accompanying drawings.

[0041] refer to image 3 According to the block diagram of the HID electronic ballast of the technical solution of the present invention, the mains input 1 inputs 220 / 110V power frequency AC to the HID electronic ballast of the present invention. The EMI filtering and rectifying circuit 2 is used to suppress / filter the interference signal of the electric conduction magnetic interference EMC generated by the circuit to the power frequency power supply, and convert the input mains power frequency AC AC rectification into a direct current DC. The power factor correction circuit 3 uses active APFC or passive PFC to adjust the power factor of the line, and uses two series-connected large-capacity electrolytic capacitors configured in the low-frequency current generator 6 connected to the subsequent stage to rectify the rectified ripple. Wave DC filtering. In the case...

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Abstract

The invention provides an improved HID electronic ballast and a lighting device with the same. The HID electronic ballast provides the energy required for turning on an HID lamp by using serially-connected high-capacity electrolytic capacitors which serve as energy storage elements, and ensures that the current provided increases correspondingly with the load power, that is, the capacities of the capacitors increase with the load power, and besides, the voltage and current are increased, so as to achieve the effect of turning on the HID lamp.

Description

technical field [0001] The invention relates to an electronic ballast used in a high-pressure gas discharge lamp (HID), in particular to an electronic ballast used in a metal halide lamp belonging to the HID lamp and a metal halide arc tube lighting device using the ballast. Background technique [0002] High-pressure gas discharge lamps (such as metal halide lamps) are often used as light sources for large-area lighting, especially flood lighting, such as lighting for stations, docks, squares, high-rise factories, mines and roads. In principle, it is not only possible but also preferred to use this type of metal halide lamp for daily (such as daily household) lighting. This is because, compared with energy-saving lamps and even LEDs that are widely used at present, metal halide lamps are smaller in size, and are superior to current popular energy-saving lamps in terms of luminous flux, luminous efficiency and color rendering index. Light is even better than the filament of...

Claims

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Application Information

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IPC IPC(8): H05B41/282
CPCY02B20/183Y02B20/00
Inventor 陈枕流
Owner 陈枕流
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