| 摘要 |
<p>There is provided a non-contact IC card having a power supply circuit capable of stably receiving power even if power consumption is varied after the power supply object circuit is switched to normal operation. The non-contact IC card includes : an antenna (11) for receiving an electromagnetic wave, a rectifier circuit (12) for rectifying AC current generated from the electromagnetic wave received by the antenna (11), a regulator (13) for regulating DC voltage VIN outputted from the rectifier circuit (12), a control circuit (15) for receiving power from the regulator (13) and executing a predetermined function, and a voltage detection circuit (14) for detecting the output voltage VIN of the rectifier circuit (12). According to the result of detection of the output voltage VIN from the rectifier circuit (12), the voltage detection circuit (14) resets or releases reset of the control circuit (15).</p> |
