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

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...

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 Although the transmitter can process DC signals, the problems of poor high-frequency performance and dynamic performance caused by magnetic flux leakage still exist, and such devices are large in size, heavy in weight and very difficult to integrate

Another approach is to use a photocoupler, which is a signal unidirectional device and has a large nonlinearity

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