| 摘要 |
<p>An audio system (10) has a switch mode power supply (12), or SMPS, an output stage (16), connected to the switch mode supply (12) for receiving power therefrom. The audio system (10) has an audio input and an audio output. The audio signal generating device (14) or audio signal generating stage has a frequency controlled or free running converter stage or a frequency controlled tuner stage for the generation of an audio signal which is output from the audio signal generating device (14) to the input of the output stage, the audio signal generating device (14) being connected to the SMPS (12) for receiving power therefrom. The SMPS (12) is operated in alternating active and non-active intervals for pulsing and not pulsing, respectively, and the audio signal generating device (14) is operated in the non-active intervals exclusively while the SMPS (12) is not pulsed for avoiding interference between the SMPS (12) and the audio signal generating device (14).</p> |
