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Line impedance stabilization network

A technology of stabilizing network and linear impedance, applied in the field of linear impedance stabilization network, it can solve the problems of poor current resistance characteristics, affecting the reliability of inductance, and reducing the reliability of linear impedance stabilization network, so as to increase the current resistance characteristics and use reliable high degree of effect

Inactive Publication Date: 2014-01-15
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Generally speaking, the linear impedance stabilization network includes an inductor wound by copper wire covered with transparent varnish. However, the inductor wound by copper wire has poor current resistance characteristics, which affects the reliability of the inductor.
Especially when used in a linear impedance stabilization network, it will reduce the reliability of the linear impedance stabilization network

Method used

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Examples

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Embodiment Construction

[0045] see figure 1 , figure 1 It is a schematic circuit diagram of a preferred embodiment of the linear impedance stabilization network 10 of the present invention. The linear impedance stabilization network 10 includes a power input port 11 , an electrical device access port 12 , an interference output port 13 , and a main circuit 14 . The power access port 11 is used to connect an external power source (such as a mains power supply) to receive a power supply voltage (such as a 220V mains alternating current). The electrical equipment access port 12 is used to connect electrical equipment to be tested for electromagnetic interference. The interference output port 13 is used to connect to an electromagnetic interference testing instrument, so that the electromagnetic interference data of the electrical equipment can be obtained through the testing instrument.

[0046] The power access port 11 includes a neutral terminal 112 , a live terminal 114 and a ground terminal 116 ....

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Abstract

The invention provides a line impedance stabilization network comprising a power supply access port, an electric equipment access port and an inductor which is connected between the power supply access port and the electric equipment access port. The inductor comprises a first pin, a second pin and a spiral coil structure which is connected between the first pin and the second pin. The two pins are connected with the power supply access port and the electric equipment access port respectively. The coil structure comprises a plurality of loops of coiling wires and a first parallelly-connected resistor, wherein the two loops of coiling wires are selected from the plurality of loops of coiling wires and are defined as a first object coiling wire and a second object coiling wire respectively. One end of the first parallelly-connected resistor is connected with the first object coiling wire, and the other end of the first parallelly-connected resistor is connected with the second object coiling wire. The reliability of the line impedance stabilization network is high.

Description

technical field [0001] The invention relates to a linear impedance stabilization network (Line Impedance Stabilization Network, LISN). Background technique [0002] Electromagnetic interference (EMI) is usually generated when electrical equipment (EUT) is working. As we all know, excessive electromagnetic interference will form electromagnetic pollution and endanger people's health. Therefore, the electromagnetic interference when the electrical equipment is working has become an important indicator for evaluating its product performance. [0003] When measuring the electromagnetic interference during the operation of electrical equipment, in order to avoid the measured interference including the interference generated by the grid voltage (such as 220V AC), the linear impedance stabilization network (also known as artificial power supply network or power supply impedance stabilization network) is usually ) is connected between the grid voltage and the electrical equipment t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R1/18G01R31/00
CPCG01R31/001
Inventor 杨永升
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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