Over-temperature protection method, device, computer storage medium and electronic equipment

Abstract

The embodiment of the invention discloses an over-temperature protection method and device, a computer storage medium and electronic equipment, and the method comprises the steps: carrying out the collection of the impedance of a loudspeaker in the music playing process of the loudspeaker, and obtaining a first impedance value of the loudspeaker; determining an impedance change rate correspondingto the loudspeaker according to the reference impedance value of the loudspeaker and the first impedance value; wherein the reference impedance value is obtained by collecting the impedance of the loudspeaker before the music is played; and based on the determined impedance change rate, controlling the intelligent power amplifier to carry out over-temperature protection processing on the loudspeaker.

Description

technical field [0001] The present application relates to the technical field of power electronics, in particular to an over-temperature protection method, device, computer storage medium and electronic equipment. Background technique [0002] With the advancement and development of technology, the development of smart power amplifier (Smart Power Amplifier, SPA) is becoming more and more mature, and it is widely used in electronic devices such as smart phones, such as for driving speakers. Since the speaker usually needs to be driven by a large current and is prone to heat during work, in order to prevent the speaker from being burned due to severe heating, an intelligent power amplifier can be used for over-temperature protection. [0003] In the current traditional solution, there is a contact connection between the sound cavity of the speaker and the circuit board, and grease is usually applied to the contact to prevent oxidation of the contact. During the music playing...

AI Technical Summary

Problems solved by technology

During the music playing process, the vibration of the sound chamber of the speaker will cause the vibration of the contacts, which may lead to the introduction of grease under the contacts, resulting in an increase in the impedance of the speaker; at this time, the intelligent power amplifier will mistakenly think that the temperature of the speaker is too high and Causes the speaker to be silent, so there is a possibility of false protection

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