Circuit for driving fuse to automatically recover and drive circuit

Abstract

The invention provides a circuit for driving a fuse to automatically recover. The circuit is connected between an AC power supply and a load, and comprises an AC-DC unit, a detection control unit, a circuit recovery unit and a fuse unit. The AC-DC unit is connected with the AC power supply, the input end of the detection control unit is connected with the AC power supply, the circuit recovery unit is connected with the detection control unit and the AC-DC unit, and the fuse unit is connected between the detection control unit and the load. When the detection control unit detects that a first fuse is burnt out, the circuit recovery unit control a switch to be turned off, and a second fuse is connected with the AC power supply and the load; when the detection control unit detects that the second fuse is burnt out, the detection control unit controls an indication lamp to give out light. The invention further provides a drive circuit. After fuses are burnt out due to a quality problem, the other fuse automatically recovers to work, and a person can be directly reminded whether a later-stage circuit of the drive circuit is damaged.

Description

Technical field [0001] The invention relates to a driving circuit, in particular to a driving insurance automatic recovery circuit and a driving circuit. Background technique [0002] In the prior art, the failure of the drive circuit to work usually includes damage to its own fuse or damage to the subsequent drive circuit. If it is the damage of the fuse itself, just replace the fuse, if it is the damage of the subsequent circuit, you need to repair the subsequent circuit. However, it is not easy for maintenance personnel to judge whether the quality of the insurance itself is caused by the damage of the subsequent drive circuit. This requires troublesome maintenance procedures and frequent replacement of the fuse, which is very troublesome. Summary of the invention [0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned prior art, and propose a drive fuse automatic recovery circuit and drive circuit, which can...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the above-mentioned deficiencies in the prior art, and propose a driving insurance automatic recovery circuit and a driving circuit, which can solve the problem that the fuse cannot be automatically recovered when the fuse is broken, and the maintenance personnel cannot directly and quickly find out whether it is the fuse or the follow-up The problem that the drive circuit cannot be started caused by the circuit

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