| 摘要 |
<p>A signal processing apparatus ( 1 ) includes a power supply input ( 20 ), a power supply connection ( 30 ) and a power supply output ( 27 ). A supply voltage generator ( 33 ) is connected to the power supply input ( 20 ) via disconnection circuit ( 72 ). A detector ( 70 ), provided in the area of the power supply connection ( 30 ), enables a supply of power to the power supply output ( 27 ) to be detected and, when a supply of power to the power supply output ( 27 ) is detected, enables the disconnection circuit ( 72 ) to be set, via a control circuit ( 73 ), to a state in which the power supply input ( 20 ) and the supply voltage generator ( 33 ) are connected.</p> |
