Unlock instant, AI-driven research and patent intelligence for your innovation.

Voltage sampling circuit of anti-syntype diverter

A voltage sampling and shunt technology, applied in electronic circuit testing, differential amplifiers, DC-coupled DC amplifiers, etc., can solve the problem of high cost and achieve the effect of low cost

Active Publication Date: 2008-07-30
EMERSON NETWORK POWER CO LTD
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above methods can only achieve single-channel measurement, that is, the measurement of the output signal of one shunt. To realize the measurement of the output signal of multiple shunts, it is necessary to use multiple sets of the above-mentioned circuits, so that the voltage sampling of the above-mentioned anti-common mode shunt Circuits that measure multiple shunt output signals are expensive

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Voltage sampling circuit of anti-syntype diverter
  • Voltage sampling circuit of anti-syntype diverter
  • Voltage sampling circuit of anti-syntype diverter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] As shown in Figure 1, in the anti-common-mode shunt voltage sampling circuit embodiment of the present invention, the anti-common-mode shunt voltage sampling circuit includes an attenuation network 1, a switch network 2 and a differential amplifier circuit 3, wherein the signal attenuation network 1 It includes a plurality of paired input terminals and a plurality of paired output terminals corresponding to the input terminals one by one; the positive input signal and the negative input signal of the multi-channel differential signal are respectively connected to one end of the paired input terminals of the attenuation network 1 Above, after the above-mentioned differential signal is input into the attenuation network 1, it is attenuated by the attenuation network 1, and then output from the output terminal of the attenuation network 1; After the input terminal of network 1 is input, it passes through the attenuation network 1 independently, and outputs to its correspond...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a voltage sampling circuit for an anti-common mode diverter, which comprises a differential amplification circuit, a signal attenuation network, and a switching network, wherein the switching network selects a pair of signals from at least one pairs of signals output from the signal attenuation network and outputs to the differential amplification circuit. The voltage sampling circuit of the invention for the anti-common mode diverter adopts the attenuation network and the switching network, so that multiple precise differential amplification circuits are not required when measuring multiple diverter outputs, thereby reducing cost.

Description

technical field [0001] The invention relates to a voltage sampling circuit, more specifically, to an anti-common-mode shunt voltage sampling circuit. Background technique [0002] The basic function of the anti-common-mode shunt voltage sampling circuit is to extract the differential-mode signal from the common-mode signal. Usually, the range of the common-mode signal is -60V-60V, and the range of the differential-mode signal to be extracted is -75mV-75mV, which belongs to Small signal measurement circuit. At present, the widely used technology is to use a resistor network to attenuate the input signal, and then use a differential amplifier circuit to extract and amplify the differential signal. The main methods are as follows: integrated anti-common mode differential amplifier circuit, such as the AD629 series differential amplifier circuit of American Analog Devices ; Realize the above functions by combining discrete components and instrumentation amplifiers, such as usin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01R31/00G01R31/28H03F3/45
Inventor 尤志毅杨靖
Owner EMERSON NETWORK POWER CO LTD