Multi-channel isolation bidirectional direct-current transmission circuit

Abstract

A multi-channel isolation bidirectional direct-current transmission circuit consists of a fourth transduction unit (4), a fifth transduction unit (5), a sixth transduction unit (6), a seventh transduction unit (7), magnetic coupling devices (10), a control circuit (8) and an impulse source (9). The impulse source (9) is connected with the fourth transduction unit (4), the fifth transduction unit (5), the sixth transduction unit (6) and the seventh transduction unit (7) and exerts synchronizing impulse. The control circuit (8) is connected with the fourth transduction unit (4), the fifth transduction unit (5), the sixth transduction unit (6) and the seventh transduction unit (7) and exerts a gating signal. The fourth transduction unit (4), the fifth transduction unit (5), the sixth transduction unit (6) and the seventh transduction unit (7) are mutually connected through the magnetic coupling devices (10), and mutual transmission of electric energy among the units on which the gating signal is exerted is achieved. The multi-channel isolation bidirectional direct-current transmission circuit is simple in structure, and the problems including complicated circuit, high cost and poor reliability are solved.

Description

1 Technical field [0001] The invention relates to a multi-channel isolated bidirectional direct current transmission circuit, which is a circuit for realizing bidirectional direct current transmission between any number of multi-channel non-common ground ports, and belongs to the technical field of direct current power conversion. 2 Technical background [0002] In some DC power applications, multiple DC power supply units that do not share the same ground are combined to provide power output together. In order to improve the overall output performance, it is necessary to detect the voltage of each DC power supply unit, and according to the detection result, transmit power between the selected units. [0003] Since each DC power supply unit does not share the same ground, the existing technology adopts circuits such as switching switching, linear optical isolation or front-end digitalization to realize voltage detection, and adopts circuits such as capacitive network, induct...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a multi-channel isolated bidirectional direct current transmission circuit, which is a single circuit that can simultaneously complete voltage detection and power transmission, and the circuit structure is relatively simple to solve the problem of complex circuits and high costs in the prior art. , the problem of poor reliability

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