| 摘要 |
<p>An electronic device (100) includes an amplifier (30), an output unit (40), a processing unit (10), and a mute control circuit (20). The amplifier (30) is for amplifying audio signals and generating amplified audio signals accordingly. The amplifier (30) includes an output port (33) to output the amplified audio signals. The output unit (40) is for emitting sounds corresponding to the amplified audio signals. The processing unit (10) is for generating a mute control signal. The mute control circuit (20) includes a main circuit (21) and an auxiliary circuit (23). The main circuit (21) is for responding to the mute control signal, and for driving the amplifier (30) to change between a mute state and a play state accordingly. The auxiliary circuit (23) is for enabling the output port of the amplifier (30) to be electrically grounded at the moment of supplying power to the electronic device (100).</p> |
