| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a power supply controller of an electronic apparatus where the user can modify the form of power supply for the electronic apparatus appropriate to the application, and power can be supplied stably to the internal function circuit. <P>SOLUTION: The power supply controller of an electronic apparatus comprises a plurality of power supply input sections 11 and 12 for inputting power for power supplies having different characteristics, a section 13 for detecting the input conditions, respectively, a switching section 14 for externally directing on/off of the function of an electronic apparatus, i.e. a mixer 1, a voltage converter 18 for performing characteristics conversion of a power supply from the power supply input section 11, and a power supply control section 16. When the function of the mixer 1 is turned on, in response to operation of the switch section 14, the power supply control section 16 selects any one or a plurality of power supply input sections 11 and 12, depending on the detection results from the input condition detecting section 13 and supplies power to a signal processing section 10. When the function of the mixer 1 is turned off, power supply at least with respect to the voltage converter 18 is interrupted. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
