Multi-triggering source low-power dissipation self-locking electronic switch

Abstract

The invention discloses a multi-triggering source low-power dissipation self-locking electronic switch, and uses multiple triggering sources to realize power supply control of electric equipment. The electronic switch comprises a first-category triggering source junction circuit formed by a triode and a second-category triggering source junction circuit formed by a triggering source resistor and an optical coupler; if being common-grounded, the triggering sources and the electric equipment are accessed to the first-category circuit; if being not common-grounded, the triggering sources and the electric equipment are accessed to the second-category circuit; a source electrode of a MOS transistor is connected to a collector electrode of a self-locking control triode, a grid electrode of the MOS transistor is connected to the collector electrode of the self-locking control triode through a resistor, and an output end of the first-category circuit and an output end of the second-category circuit are connected to the collector electrode of the self-locking control triode; and both the first-category triggering source junction circuit and second-category triggering source junction circuit have grounding ends, and an emitting electrode of the self-locking control triode is connected to the ground. The circuits can realize flexible control of the multiple triggering sources and low power dissipation.

Description

technical field [0001] The invention belongs to the field of electronic switches. Background technique [0002] In the development process of a certain type of product, an internal recorder is required to record the internal signal and working status of the product. There are various test methods and processes in the development of this product, which requires the built-in power supply of the internal recorder, which can be flexibly powered on and started in various tests, and can be automatically powered off after the test is completed. [0003] This type of product is small in size and cannot provide a mechanical power switch for the internal recorder. After the product is assembled, it may be stored for a long time for several days to several months before the test. After the test starts, the test may be suspended due to various situations. Contents of the invention [0004] In view of this, the present invention provides a low-power self-locking electronic switch with...

AI Technical Summary

Problems solved by technology

[0003] This type of product is small in size and cannot provide a mechanical power switch for the internal recorder, and the product may be stored for a long time from several days to several months after the assembly is completed and before the test, and the test may be suspended due to various circumstances after the test starts.

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