Surge protection circuit and control method thereof, driving device and air conditioner

A technology of surge protection and control method, applied in emergency protection circuit devices, circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, etc. And other issues
CN114094558APending Publication Date: 2022-02-25HISENSE (GUANGDONG) AIR CONDITIONER
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HISENSE (GUANGDONG) AIR CONDITIONER
Publication Date
2022-02-25

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Abstract

The invention discloses a surge protection circuit and a control method thereof, a driving device and an air conditioner, and the surge protection circuit comprises a surge protection module which is suitable for being connected with a power supply; a switch module connected with the surge protection module in parallel; a temperature acquisition module used for acquiring the temperature of the surge protection module; and a control module which is connected with the switch module and the temperature acquisition module and is used for controlling the on-off of the switch module according to the temperature of the surge protection module. By adopting the surge protection circuit, the problem of circuit device damage caused by overhigh temperature can be avoided, and the service life of the circuit is prolonged.
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Description

technical field

[0001] The invention relates to the technical field of household appliances, in particular to a surge protection circuit, a control method thereof, a driving device and an air conditioner. Background technique

[0002] In related technologies, NTC (Negative Temperature Coefficient) resistors are used in the surge protection circuits of household appliances to limit the instantaneous surge current of the load. However, if the NTC resistors work for a long time, it is easy to overheat the NTC resistors. , causing damage to the NTC resistor and shortening the service life, Contents of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a surge protection circuit, which can avoid damage to circuit components caused by overheating and prolong the service life of the circuit.

[0004] The second object of the present invention is ...

Claims

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