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Filter and electronic equipment with same

A filter and filter module technology, applied in the direction of electrical components, impedance networks, etc., can solve the problems that the filter is not universal and the parameters cannot be adjusted.

Inactive Publication Date: 2015-03-25
SCIENBIZIP CONSULTINGSHENZHENCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the filter design is completed, its parameters are not adjustable
Therefore, existing filters are not universal

Method used

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  • Filter and electronic equipment with same
  • Filter and electronic equipment with same
  • Filter and electronic equipment with same

Examples

Experimental program
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Embodiment Construction

[0016] Such as figure 1 As shown, it is a schematic diagram of functional modules of the electronic device 200 according to the first embodiment of the present invention. The electronic device 200 includes a filter 100 , an input module 10 and an output module 20 .

[0017] Please combine figure 2 , the input module 10 is used to receive an input signal. In this embodiment, the input module 10 is a signal input terminal (signal input port), and the input signal is a superimposed signal of different frequency bands. Of course, the input module 10 can also be a signal output terminal of other circuits (not shown). Preferably, in order to isolate the slowly changing signal and the low-frequency AC signal in the input signal, the input module 10 further includes a first DC blocking circuit 11, and the first DC blocking circuit 11 includes a first capacitor C1 and a first resistor R1. The input module 10 is electrically grounded through the first capacitor C1 and the first resi...

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Abstract

The invention relates to a filter. The filter comprises a filter module, a second filter module, a selection module and a control module, wherein the control module is used for sending a first signal or a second signal; the first filter module comprises a first switching unit and a first filter unit; the second filter module comprises a second switching unit and a second filter unit; the selection module is used for selecting to start the first switching unit when receiving the first filter signal, so that the first filter unit filters an input signal of the first switching unit to obtain a first filter signal; and the selection unit is also used for selecting to start the second switching unit when receiving the second filter signal, so that the second filter unit filters the input signal of the second switching unit to obtain a second filter unit. The filter filters the input signal by automatically selecting a filter module from the first filter module and the second filter module by using the selection unit, so that the filter has universality. The invention also relates to electronic equipment with the filter.

Description

technical field [0001] The invention relates to a filter and electronic equipment with the filter. Background technique [0002] Filters are widely used in various electronic equipment to filter out noise in the signal transmission process, so that electronic equipment has better working performance. Filters with different parameters can suppress signals in different frequency bands. Therefore, it is often necessary to design filters with different parameters for different requirements. However, when the filter design is completed, its parameters are not adjustable. Therefore, existing filters are not universal. Contents of the invention [0003] In view of this, it is necessary to provide a universal filter. [0004] A filter includes a first filter module, a second filter module, a selection module and a control module. The control module is used for sending out the first signal or the second signal. The first filter module includes a first switch unit and a first f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03H1/00
Inventor 鲁建辉
Owner SCIENBIZIP CONSULTINGSHENZHENCO
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