Multi-functional serial voltage-stabilizing power supply

Abstract

The invention discloses a multifunctional serial voltage-stabilizing power supply. A battery pack is connected with a charging and discharging control circuit, the output end of a transformation and rectification filtering circuit is connected with the input end of a primary voltage-stabilizing circuit, the output end of the primary voltage-stabilizing circuit is connected with the input end of the charging and discharging control circuit and the input end of a secondary voltage-stabilizing and intrinsically safe circuit, the output end of the secondary voltage-stabilizing and intrinsically safe circuit is connected with the input end of a triple voltage-stabilizing and intrinsically safe circuit, and an overvoltage protection circuit is arranged between the output end of the secondary voltage-stabilizing and intrinsically safe circuit and the input end of a triple voltage-stabilizing and intrinsically safe circuit. The power supply can be applied to underground occasion containing explosive mixed gas and military communication occasion and can operate for a long term, resist high and low temperature, carry out short circuit on the output end of the voltage-stabilizing and intrinsically safe circuits for a long time and has improved function, excellent watertight and anti-explosion performances and extremely high reliability after running for a long time.

Description

technical field [0001] The invention relates to an explosion-proof and intrinsically safe power supply, which is mainly applicable to explosive mixed gas occasions in power supply fields such as coal mines, military industry, chemical industry, metallurgy, and environmental protection, and harsh environments such as the field, and particularly relates to a multifunctional series stabilized power supply. Background technique [0002] At present, explosion-proof and intrinsically safe power supply and military power supply technologies are increasingly widely used in coal mines, military industry, chemical industry, metallurgy, environmental protection and other fields. It is an intrinsically safe power supply that is allowed to be used in explosive hazardous environments. The type equipment provides an intrinsically safe power supply, which is also a highly reliable power supply that allows use in high and low temperature environments. The working principle is that the AC vol...

AI Technical Summary

Problems solved by technology

They cannot run for a long time, they cannot support the user to short-circuit the output terminal for a long time, and it is difficult for them to really meet the needs of mining power and military power.

At present, many explosion-proof and intrinsically safe power supplies and military power supplies do not allow users to short-circuit the intrinsically safe output terminals of the power supply and power output terminals for a long time, because once their "output terminals" are short-circuited for a long time, their power supply The internal circuit of the device will continue to consume power, and its internal circuit will continue to perform jumping work. The current flowing through some devices reaches several amperes (such as: 1.2A---3A), and the device generates too much heat. highly fragile

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