一种新型非接触式 IC 卡电路

A New Non Contact Circuit for IC Card

利用变压器原理并通过对需要传输的信号调频调幅，实现非接触能量和信号的双向传播，这种传输方式不仅可以用于ＩＣ卡，同时也可以应用于其它恶劣环境下信息的采集以及可编程部件内的软件更换。

A new non contact circuit for IC card is presented in this paper. The circuit, without any contacts for both the cards and the card readers, transmits energy and signals bi directionally with a transformer and by means of frequency modulation(FM) and amplitude modulation(AM). The schematic circuits are presented. Experimental data show that this device is highly reliable and has lower electric power consumption.