Filter circuit and vehicle-mounted electronic equipment

A filter circuit and capacitor technology, applied in the field of circuits, can solve the problems of products that cannot meet the requirements of EMC standards and lift, and achieve the effect of improving realizability and reliability

Pending Publication Date: 2020-09-29
HUAWEI DIGITAL POWER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present technology describes an improved way for reducing electrical interference (EMI) between different electronic devices by adding special materials or components called magnets on their surfaces instead of just iron bars used alone. This helps reduce EMI without affecting other parts' performance. Overall, this innovative design enhances the quality of signal transmission while maintaining its effectiveness over longer periods of time.

Problems solved by technology

The technical problem addressed in this patented text relates to improving the design of an electronics module used inside cars while maintaining good performance against environmental factors like radio waves from other devices connected through their own antennae.

Method used

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  • Filter circuit and vehicle-mounted electronic equipment
  • Filter circuit and vehicle-mounted electronic equipment
  • Filter circuit and vehicle-mounted electronic equipment

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Embodiment Construction

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0049] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and not necessarily Used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprisi

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Abstract

The embodiment of the invention discloses a filter circuit and vehicle-mounted electronic equipment applied to the field of circuits. According to the embodiment of the invention, the filter circuit comprises a noise reduction device. When the current flows through the connection point of the noise reduction device and the common-mode inductor, the current of a part of frequency bands in the current flows through the noise reduction device and then is guided into the ground through the capacitor. Thus, the current flowing through the frequency band of the common-mode inductor is reduced, the resonance between the capacitor and the common-mode inductor is relieved, the electromagnetic noise of the resonance frequency band is reduced, and the signal-to-noise ratio of the output signal is improved.

Description

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Claims

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Application Information

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Owner HUAWEI DIGITAL POWER TECH CO LTD
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