| 摘要 |
An audio output device includes an audio control circuit outputting to an audio amplifier an audio control signal generated based on a volume signal supplied from an audio adjustment switch, the audio amplifier including a control IC, a power control circuit generating a predetermined drive voltage from a power supply voltage supplied thereto and supplying the generated drive voltage to the audio amplifier, and a microcomputer monitoring a temperature of the control IC of the audio amplifier and gradually reducing the audio control signal output from the audio control circuit and the drive voltage output from the power control circuit when the temperature of the control IC has reached a set temperature, the microcomputer gradually returning the audio control signal and the drive voltage to respective levels before reduction. |
