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Ultra-wide-band power supply filter for mechanical carrier and design method thereof

A technology of power supply filter and design method, which is applied in harmonic reduction devices and AC networks to reduce harmonics/ripples, etc., can solve the problems such as the difficulty of ultra-wideband power supply filters, and ensure safety and low insertion loss. Effect

Active Publication Date: 2010-06-16
XIAN KAIRONG ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of the grounding condition of the mobile carrier, in order to ensure the safety of the operator and the electronic equipment, the leakage current of the shielded shelter power filter must be limited to a small value, but the requirements of broadband, high shielding efficiency and low leakage current The filter design is contradictory, so the ultra-wideband power filter suitable for mobile carriers is very difficult and is an urgent problem to be solved

Method used

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  • Ultra-wide-band power supply filter for mechanical carrier and design method thereof
  • Ultra-wide-band power supply filter for mechanical carrier and design method thereof
  • Ultra-wide-band power supply filter for mechanical carrier and design method thereof

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Embodiment Construction

[0014] Such as figure 1 As shown, it includes the absorption filter circuit 2 composed of the low-frequency reflective LC filter circuit 1 and the coaxial distributed parameter circuit, and the absorbing filter circuit 2 composed of the low-frequency reflective LC filter circuit 1 and the coaxial distributed parameter circuit is connected in series to form L-L / channel and N-N / aisle. Low-frequency reflection type LC filter circuit 1 is composed of two common-mode inductors L1, one common-mode inductor L2 and common-mode capacitor Cy1. The common-mode inductor L1 is made of amorphous nano-metal material with lower cut-off frequency. It has a good suppression effect on low frequencies. The common mode inductor L2 is made of manganese zinc material. A common-mode capacitor Cy1 is connected in parallel between the two common-mode inductors L1, and a common-mode capacitor Cy1 is connected in parallel between the common-mode inductor L1 and the serially connected common-mode ...

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Abstract

The invention relates to a filter, in particular to an ultra-wide-band power supply filter for a mechanical carrier and a design method thereof. The filter is characterized by comprising a low-frequency reflective LC filter circuit and an absorptive filter circuit formed by a coaxial distributed parameter circuit, wherein the low-frequency reflective LC filter circuit and the absorptive filter circuit formed by the coaxial distributed parameter circuit are connected in series to form an L-L / channel and an N-N / channel. The filter provides adequate insertion loss and ensures a small leakage current as well as the safety of human bodies and equipment.

Description

technical field [0001] The invention relates to a filter, more specifically an ultra-wideband power supply filter for a mobile carrier and a design method thereof. Background technique [0002] In recent years, as a mobile carrier of electronic equipment, shielding shelters have been widely used in aviation, aerospace, ship and ground electronic systems. The electromagnetic environment of these systems has a very wide frequency band and a large field strength. Since the electromagnetic coupling of the electromagnetic wave to the shielding shelter is through the field-field coupling of the radiation field on the one hand, and the field-line coupling of the power line and the signal line on the other hand, in order to ensure that the shielding shelter is in such a complex To achieve the specified shielding effectiveness in the electromagnetic environment and eliminate the electromagnetic interference introduced by the power line, it is necessary to develop a power filter with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/01
CPCY02E40/40
Inventor 邱扬任琦张勃
Owner XIAN KAIRONG ELECTRONICS TECH