Circuit for conditioning micro-current/voltage conversion signal

A signal conditioning circuit and voltage conversion technology, applied in the direction of analog-to-digital converters, logic circuit connection/interface layout, amplifier combination, etc., can solve the problems of high cost, unsuitable for mass production, expensive circuits, and easy oscillation, etc., to achieve The effect of high use value, low price and stable performance

Active Publication Date: 2011-01-05
SHANGHAI RENMIN ELECTRICAL APP WORKS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional circuits require a wide variety of components, the circuit is complex and prone to oscillation, and its performance is unstable; while circuits designed with current / voltage conversion integrated chips are expensive, and the high cost is not suitable for mass production

Method used

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  • Circuit for conditioning micro-current/voltage conversion signal
  • Circuit for conditioning micro-current/voltage conversion signal
  • Circuit for conditioning micro-current/voltage conversion signal

Examples

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings.

[0015] like figure 1 , 2 As shown, a micro-current / voltage conversion signal conditioning circuit includes an external detection signal input unit I, an inverter amplifier II, a first voltage follower III, a second voltage follower IV and an A / D conversion unit V, so The inverter amplifier II and the first voltage follower III are both connected to the external detection signal input unit I, and the inverter amplifier II and the first voltage follower III are both A / D converted through the second voltage follower IV The unit V is connected, and the external detection signal input unit I provides an external detection signal. The external detection signal is processed by the inverting amplifier II and the first voltage follower III and synthesized to the second voltage follower IV for processing, and then output after processing. To the A / D conversion unit V.

[0016...

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PUM

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Abstract

The invention relates to a circuit for conditioning a micro-current / voltage conversion signal. The circuit comprises an external detection signal input unit, a phase inverter amplifier, a first voltage follower, a second voltage follower and an analog to digital (A / D) converting unit, wherein the phase inverter amplifier and the first voltage follower are connected with the external detection signal input unit and connected with the A / D converting unit through the second voltage follower; the external detection signal input unit provides an external detection signal; and the external detection signal is processed by the phase inverter amplifier and the first voltage follower, synthesized, processed by the second voltage follower and output to the A / D converting unit. A small number of components is used in the circuit and is readily available in the market and the circuit has the advantages of simple structure, stable performance, low cost and high use value; and a small number and a few types of the components are adopted, so that instable performance of a system caused by the properties of elements is avoided.

Description

technical field [0001] The invention relates to a micro-current / voltage conversion signal conditioning technology, in particular to a micro-current / voltage conversion signal conditioning circuit. Background technique [0002] The current current / voltage conversion usually refers to the conversion processing of the AC signal, and does not take into account the detection and processing of the AC signal superimposed with the pulsating DC component in the input signal in some special occasions. The traditional circuit requires a wide variety of components, the circuit is complex and prone to oscillation, and the performance is unstable; while the circuit designed with the current / voltage conversion integrated chip is expensive, and the cost is high and is not suitable for mass production. SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the present invention is to provide a micro-current / voltage conversion signal conditioning circuit in order to overcome...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K19/0175H03M1/12H03F3/68
Inventor 李海兵冯俊盛昌鑫
Owner SHANGHAI RENMIN ELECTRICAL APP WORKS
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