Circuit with M direct-current power supply modules and N output load switching modules

Abstract

The invention discloses a circuit with M direct-current power supply modules and N output load switching modules, and the circuit is composed of M direct-current power supply modules MK and N output load switching modules OUT, wherein the positive and negative electrodes of the M direct-current power supply modules MK and the positive and negative electrodes of the N output load switching modulesform M * N nodes, and each node is provided with a node switch K; the node switch K connects the positive and negative electrodes of the DC power supply module MK with the positive and negative electrodes of the output load switching module OUT respectively to form an output path; the node switch K is composed of a first direct-current relay 5, a second direct-current relay 6, a third direct-current relay 7 and a solid-state power tube 8. The node switch K is provided with a positive access and a negative access; the direct current relay I 5 is connected between the negative electrode of the direct current power supply module MK and the negative electrode of the output load switching module OUT to form a negative electrode path; the second direct-current relay 6, the third direct-current relay 7 and the solid-state power tube 8 form a positive electrode path.

Description

technical field [0001] The invention relates to a multi-power supply module and a multi-load output switching circuit, in particular to a switching module circuit with M DC power modules and N output loads. Background technique [0002] In many existing power application scenarios, there are combinations of multiple backup power sources. When outputting to multiple power loads, electrical switches are used to switch. There are problems of "ignition" and large losses in the switching process; when using In the case of a solid-state power tube, its built-in diode will form a bypass current between the output load switching modules when the output voltages of multiple output load switching modules are different. Contents of the invention [0003] In view of the deficiencies in the prior art, the purpose of the present invention is to propose a new type of switching circuit for M DC power modules and N output control modules, which can avoid the occurrence of the above phenome...

AI Technical Summary

Problems solved by technology

[0002] In many existing power application scenarios, there are combinations of multiple backup power sources. When outputting to multiple power loads, electrical switches are used for switching. There are problems of "ignition" and large losses in switching switches; when using In the solid state power tube, its built-in diode will form a bypass current between the output load switching modules when the output voltages of multiple output load switching modules are different.

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