Isolation amplifiers, proportional controlled sources and integral controlled sources with isolation amplifiers, and mutual coupler

An isolation amplifier and operational amplifier technology, applied in electronic circuits, analog signal processing devices, and circuits, can solve the problems of heavy weight, large device volume, large nonlinearity, etc., and achieve good linearity, high frequency performance, and response speed. quick effect

Active Publication Date: 2019-04-23
朱嘉慧
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A common method to achieve isolation coupling is to use magnetic field isolation coupling, such as transformers and transformers, etc., but the DC signal cannot be transformed, and the high-frequency performance and dynamic performance are not good due to the existence of magnetic flux leakage; the voltage and current of the Hall element are used Altho

Method used

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  • Isolation amplifiers, proportional controlled sources and integral controlled sources with isolation amplifiers, and mutual coupler
  • Isolation amplifiers, proportional controlled sources and integral controlled sources with isolation amplifiers, and mutual coupler
  • Isolation amplifiers, proportional controlled sources and integral controlled sources with isolation amplifiers, and mutual coupler

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0115] Example 1

[0116] Voltage type isolation amplifier and current type isolation amplifier

[0117] Inverting-inverting dual output, inverting-in-phase dual output, in-phase-in-phase dual output, in-phase-inverting dual output voltage isolation amplifier schematic diagram as shown Figure 12a , 12b , 12c, 12d. The dual output voltage isolation amplifier consists of two dual phototransistor receiving photocouplers OD with the same parameters P , OD N And two current limiting resistors R X Composition, two optocouplers OD P And OD N The LEDs are connected with a current limiting resistor R X And then connect in series, the two ends are respectively connected to the 0th group of independent positive and negative symmetrical dual power supplies +V0 and -V0, the common end is used as the input terminal u of the dual output voltage isolation amplifier i Relative to the 0th group of independent positive and negative symmetrical dual power supply floating Fgnd0 input voltage signal; tw...

Example Embodiment

[0122] Example 2

[0123] Single output proportional controlled source and dual output proportional controlled source

[0124] The proportional controlled source is composed of an inverting isolation amplifier or a non-inverting isolation amplifier, an input control circuit and an output conditioning circuit. The input control circuit from the input port to the isolation amplifier has two types: current control circuit and voltage control circuit, and the isolation amplifier to the output port There are two types of output conditioning circuits: voltage type conditioning circuit and current type conditioning circuit.

[0125] The single output proportional controlled source has a control input port and a power output port, and there are four types of current control voltage source, current control current source, voltage control voltage source and voltage control current source.

[0126] The block diagram of the current control voltage source using inverting isolation amplifier and no...

Example Embodiment

[0139] Example 3

[0140] Single output integral controlled source and dual output integral controlled source

[0141] The single-output integral controlled source has a control input port and a power output port, and has four types: current integral voltage source, current integral current source, voltage integral voltage source and voltage integral current source.

[0142] The principle block diagram of the current integrating voltage source using inverting isolation amplifier and non-inverting isolation amplifier is as follows Figure 26a , 26b Shown. The current integration voltage source is obtained by replacing the operation resistance of the current control voltage source with an operation capacitor. The input and output relationship:

[0143]

[0144] The principle block diagram of the current integrating current source using inverting isolation amplifier and non-inverting isolation amplifier is as follows Figure 27a , 27b Shown. The current integral current source is obtain...

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PUM

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Abstract

The invention relates to isolation amplifiers, proportional controlled sources and integral controlled sources with the isolation amplifiers, and a mutual coupler, and belongs to a circuit, electroniccircuit and analog signal processing device. The isolation amplifiers are each composed of two diode or audion receiving-type photoelectric couplers with the same parameters, are each of a complimentary symmetry structure, and have excellent characteristics of direct current signal amplifying, high isolation property, alternate current signal positive and negative symmetry and quick response; theproportional controlled sources and the integral controlled sources are composed of the isolation amplifiers and operational amplifiers, and central core circuits are in mirror symmetry and have thehigh isolating property, the high linearity degree, the high operational precision and ideal input and output characteristics of the controlled sources; the mutual coupler is composed of the controlled sources and has excellent properties because of the complimentary symmetry structure of the isolation amplifiers and the mirror symmetry structure of the controlled sources, and thus the various transformation functions can be achieved; and the proportional controlled sources, the integral controlled sources and the mutual coupler are applied to single-phase, two-phase and three-phase circuits,and the rich functions of isolation, control, operation, transformation and the like are achieved.

Description

technical field [0001] The invention relates to an isolation amplifier and its proportional controlled source, integral controlled source and mutual coupler, especially the isolated amplifier constructed by using a photocoupler, its proportional controlled source, integral controlled source and the controlled source The constructed mutual coupler belongs to a circuit, an electronic circuit, and an analog signal processing device. Background technique [0002] With the development of society and technology, the application of circuits is becoming more and more common, but at the same time the circuits are becoming more and more complex, from simple couplet circuits, series-parallel conversion circuits, three-fork triangle conversion circuits to super complex circuits, from single-port circuits Network, two-port circuit network to multi-port circuit network, from single-phase circuit, two-phase circuit, three-phase circuit to multi-phase circuit, from static circuit, steady st...

Claims

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Application Information

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IPC IPC(8): G05F1/56
CPCG05F1/56
Inventor 朱明朱嘉慧
Owner 朱嘉慧
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