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    • 1. 发明申请
    • Non-Contact Ic Card
    • 非接触式IC卡
    • US20080093461A1
    • 2008-04-24
    • US11579871
    • 2005-05-09
    • Yoshinari MarushimaJunichi OkamotoHaruhiko ShigemasaHaruya Mori
    • Yoshinari MarushimaJunichi OkamotoHaruhiko ShigemasaHaruya Mori
    • G06K19/06
    • G06K19/0701G06K19/0723
    • 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).
    • 提供了一种非接触式IC卡,其具有即使在电源对象电路切换到正常操作之后功率消耗变化时也能够稳定地接收电力的电源电路。 非接触IC卡包括:用于接收电磁波的天线(11),用于整流由天线(11)接收的电磁波产生的交流电流的整流电路(12),用于调节DC 从整流电路(12)输出的电压VIN,用于从调节器(13)接收电力并执行预定功能的控制电路(15),以及用于检测整流电路的输出电压VIN的电压检测电路 (12)。 根据从整流电路(12)检测出输出电压VIN的结果,电压检测电路(14)复位或解除控制电路(15)的复位。