EMI (Electro-Magnetic Interference) filter of electrodeless fluorescent lamp with ultracrystalline filter coil CL+CL structure

A technology of electrodeless fluorescent lamps and filter coils, applied in light sources, electric light sources, lighting devices, etc., can solve the problem of different parameter values, and achieve the effect of suppressing conduction and radiation interference

Inactive Publication Date: 2012-11-07
王家诚 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Its parameter values ​​vary with power

Method used

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  • EMI (Electro-Magnetic Interference) filter of electrodeless fluorescent lamp with ultracrystalline filter coil CL+CL structure

Examples

Experimental program
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Embodiment Construction

[0015] like figure 1 As shown, the ultramicrocrystalline filter coil CL+CL structure electrodeless fluorescent lamp EMI filter in this embodiment includes a ground wire, a first common-mode filter coil device and a second common-mode filter coil device, and the first common-mode filter coil device It has a first filter coil segment input interface, a second filter coil segment input interface, a first filter coil segment output interface and a second filter coil segment output interface, and the second common mode filter coil device has a third filter coil segment input interface , the input interface of the fourth filter coil segment, the output interface of the third filter coil segment and the output interface of the fourth filter coil segment, the output interface of the first filter coil segment is connected with the input interface of the third filter coil, and the second filter coil The segment output interface is connected to the input interface of the fourth filter co...

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Abstract

The invention relates to an EMI (Electro-Magnetic Interference) filter of an electrodeless fluorescent lamp with an ultracrystalline filter coil CL+CL structure, which comprises an earth wire, a first common mode filter coil device and a second common mode filter coil device, wherein the first common mode filter device is provided with a first and a second filter coil section input interfaces, and a first and a second filter coil section output interfaces; the second common mode filter coil device is provided with a third and a fourth filter coil section input interfaces, and a third and a fourth filter coil section output interfaces; the first filter coil section input interface is connected with the earth wire through a Y capacitor, the second filter coil section input port is connectedwith the earth wire through the Y capacitor, the first and the second filter coil section output interfaces are connected through an X capacitor, and the third filter coil section input interface is connected with the earth wire through the Y capacitor, and the four filter coil section output interface is connected with the earth wire through the Y capacitor. The EMI filter is characterized in that the second common mode filter coil device is an ultracrystalline filter coil device.

Description

technical field [0001] The invention relates to a power supply EMI filter used on a high-frequency electronic frequency converter of a high-power electrodeless fluorescent lamp. Background technique [0002] The existing high-frequency electronic frequency converter for high-power electrodeless fluorescent lamps is a form of switching power converter and a complete set of components that must be used when high-power electrodeless fluorescent lamps work. With the improvement of people's living standards, the requirements for the use of high-power electrodeless fluorescent lamps have also increased accordingly. The existing high-power electrodeless fluorescent lamp high-frequency electronic frequency converter will generate electromagnetic interference when it is working. This interference enters the power grid through the power line to form conduction interference, and at the same time generates radiation interference to the space. Existing people pay great attention to its ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M1/44H05B41/14
Inventor 王家诚王佳模
Owner 王家诚
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