| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To automatically identify in a power source classification identifying device for identifying the classification of a power unit for supplying operation power of various electronic devices. <P>SOLUTION: A series circuit of a no-fuse breaker 7, a resistance 6 and a switch 5 is connected between terminals T1, T2 of the electronic device 1 with the power unit connected thereto, and a DC/DC converter 3 for supplying stabilization DC voltage to an electronic circuit 2 is connected between the terminals T1, T2. A voltage drop detecting part 4 is provided at the DC/DC converter 3, and a power source classification discriminating part 8 is provided for discriminating the power unit as an exclusive power unit by detecting a voltage drop by the voltage drop detecting part 4 when voltage drop control is performed by the operation of an overcurrent protective circuit 10a of the power unit by applying a current flowing through the resistance 6 of the series circuit, and discriminates the power unit as a general-purpose power unit when the no-fuse breaker 7 is operated. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
