Mutually exclusive switching circuit

Abstract

The invention discloses a mutually exclusive switching circuit. The mutually exclusive switching circuit comprises a current limiting module, a time delay module and a first NAND gate; an input end of the current limiting module, an input end of the time delay module and a first input end of the first NAND gate are connected to a switching control signal; an output end of the current limiting module and an output end of the first NAND gate are connected to a one-way conduction module; and two output ends of the one-way conduction module are each connected with a switching device. The mutually exclusive switching circuit disclosed by the invention is simple in structure, low in cost and easy to realize; the conduction angle of the mutually exclusive switching circuit can be adjusted by setting a parameter of the time delay module; the condition that two switches are simultaneously conducted in a critical state due to overlapping of the conduction angles can be effectively prevented; short circuit of the circuit is avoided, so that components are prevented from being burned; by means of electrical isolation, the mutually exclusive switching circuit can be used in a high-power occasion and is safe to use; and the problem that the switch is broken down easily in the mutually exclusive switching circuit in the prior art can be effectively solved.

Description

technical field [0001] The invention relates to a switch circuit, in particular to a mutually exclusive switch circuit. Background technique [0002] The existing mutual exclusion switch is a pure digital circuit, the conduction angle cannot be adjusted, and the conduction angle overlaps, so that both switches may be conducted in a critical state, causing the circuit to short circuit and burning components; the power is small, and the electrical non-isolation , the use is unsafe, and the structure is complicated. In high-power occasions, it will cause the switch to break down and cannot be used. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a mutually exclusive switch circuit for the deficiencies of the prior art. [0004] In order to solve the above technical problems, the technical solution adopted in the present invention is: a mutual exclusion switch circuit, including a current limiting module, a delay mo...

AI Technical Summary

Problems solved by technology

[0002] The existing mutual exclusion switch is a pure digital circuit, the conduction angle cannot be adjusted, and the conduction angle overlaps, so that both switches may be conducted in a critical state, causing the circuit to short circuit and burning components; the power is small, and the electrical non-isolation , the use is unsafe, and the structure is complicated. In high-power occasions, it will cause the switch to break down and cannot be used.

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