High-voltage direct-current filtering device

A technology of high-voltage direct current and filtering devices, which is applied in the direction of output power conversion devices and electrical components to achieve the effect of improving quality

Inactive Publication Date: 2018-12-18
XJ POWER CO LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a high-voltage direct current filter device for solving the problem of how to filter out the ripple noise of the high-voltage direct current output

Method used

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Embodiment Construction

[0016] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] In order to effectively attenuate the ripple noise of the DC output of the high-voltage DC switching power supply system, thereby obtaining a high-quality DC output power supply with low ripple noise, the present invention provides a high-voltage DC filter device, which is compact in structure and safe Reliable, it can effectively reduce the ripple noise in the DC output of the high-voltage DC switching power supply system, and meet the performance requirements of some special high-voltage loads for high-quality output DC sources.

[0018] Such as figure 1 As shown, the high-voltage DC filter device includes a filter circuit unit, a high-voltage discharge circuit unit, a high-voltage DC positive input terminal XS01, a high-voltage D...

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Abstract

The invention relates to a high-voltage direct-current filtering device, comprising a filter circuit unit, a high-voltage bleeder circuit unit, a high-voltage direct-current positive and negative electrode input terminal and a high-voltage direct-current positive and negative electrode output terminal. The filter circuit unit comprises a common-mode filter circuit and a differential-mode filter circuit, and the high-voltage bleeder circuit unit comprises a bleeder branch; The positive and negative input terminals of the common mode filter circuit are connected with the positive and negative input terminals of the high voltage direct current, and the positive and negative output terminals of the common mode filter circuit are connected with the differential mode filter circuit. The differential mode filter circuit comprises a differential mode filter capacitor and a differential mode filter inductor, A positive electrode and a negative electrode of the differential mode filtering capacitor are connected to a common mode filtering circuit, a first connection terminal of the differential mode filtering inductor is connected to the negative electrode of the differential mode filteringcapacitor, a bleeding branch is connected between the positive electrode and the negative electrode of the differential mode filtering capacitor, and the positive electrode of the differential mode filtering capacitor and the second connection terminal of the differential mode filtering inductor are respectively connected to the output terminals of the positive electrode and the negative electrodeof the high voltage direct current. The invention improves the quality of the DC power supply by filtering the common-mode noise and the differential-mode noise output by the high-voltage DC power supply.

Description

technical field [0001] The invention relates to a high-voltage direct current filtering device, which belongs to the technical field of direct current filtering. Background technique [0002] In the high-voltage DC switching power supply system, the EMI filter applied to the high-voltage DC output is less utilized. With the development of science and technology, some special high-voltage loads have higher and higher requirements for the quality of the DC output power of the high-voltage DC switching power supply system, especially for the ripple noise of the high-voltage DC output. Contents of the invention [0003] The purpose of the present invention is to provide a high-voltage direct current filter device for solving the problem of how to filter out the ripple noise of the high-voltage direct current output. [0004] In order to solve the above-mentioned technical problems, the present invention provides a high-voltage DC filter device, which includes a filter circuit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/14
CPCH02M1/14
Inventor 杨国杰皇利杰刘志远邹岩张公全刘天强常志国张明冉张省胡建超李振国冯进喜陈璐明李鹏军袁攀
Owner XJ POWER CO LTD
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