Filtering circuit for lighting metering distribution box

A technology of metering distribution box and filter circuit, applied in electrical components, impedance network, single-ended network, etc., can solve the problems of poor filtering effect of noise signal, reducing power control and measurement accuracy of lighting metering distribution box, etc. , to achieve the effect of suppressing clutter gain and improving filtering effect

Active Publication Date: 2016-09-21
廊坊市梅硕电气设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing filter circuit has poor filtering effect on dynamically changing noise signals, wh

Method used

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  • Filtering circuit for lighting metering distribution box
  • Filtering circuit for lighting metering distribution box
  • Filtering circuit for lighting metering distribution box

Examples

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Embodiment Construction

[0016] The standard parts used in the present invention can be purchased from the market, and the special-shaped parts can be customized according to the instructions and the accompanying drawings. The specific connection methods of each part adopt mature bolts, rivets, welding in the prior art , pasting and other conventional means, will not be described in detail here.

[0017] refer to Figure 1-5 , A specific embodiment of the invention includes a pre-filter circuit 1, the pre-filter circuit 1 is connected to an amplifying circuit 2, the amplifying circuit 2 is connected to a post-filter circuit 3, and the post-filter circuit 3 is connected to the pre-filter circuit through a feedback circuit 4 1. The first input terminal IN1 of the pre-filter circuit 1 is connected to the inverting input terminal of the first operational amplifier A1 through the first resistor R1 and the first capacitor C1 connected in series, and the first resistor R1 and the first capacitor C1 are conn...

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Abstract

The invention discloses a filtering circuit for a lighting metering distribution box. The circuit comprises a pre-filtering circuit which is connected to an amplifying circuit which is connected to a back-filtering circuit, and the back-filtering circuit is connected to the pre-filtering circuit through a feedback circuit. According to the invention, the deficiency of the prior art can be improved, and the filtering effect of a noise signal with a dynamic change is improved.

Description

technical field [0001] The invention relates to the technical field of lighting metering distribution boxes, in particular to a filter circuit for lighting metering distribution boxes. Background technique [0002] The lighting metering distribution box is the equipment responsible for completing power control, metering, protection, conversion and distribution at the end of the low-voltage power supply system. Among them, in order to ensure the accuracy of the electric energy control and metering circuit, it is necessary to filter the measurement signal. The existing filtering circuit has poor filtering effect on dynamically changing noise signals, which reduces the accuracy of electric energy control and metering of the lighting metering distribution box. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a filter circuit for the lighting metering distribution box, which can solve the deficiencies of the prior art...

Claims

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Application Information

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IPC IPC(8): H03H5/12
CPCH03H5/12
Inventor 侯国亮
Owner 廊坊市梅硕电气设备有限公司
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