非接触式13.56MHz读卡器的设计

Design of contactless IC reader with a carrier frequency of 13.56MHz

针对非接触式13.56 MHz读写器存在功耗高、体积大等问题,提出了一种低功耗、高安全性的研究模型。模型采用MSP430F2274为主控芯片,采用MF RC522为射频芯片,在保证通信稳定、抗干扰力强、通信距离能达到10 mm的前提下,可以使系统有效降低功耗和体积。实验结果表明:系统3.3 V供电完全适合MF RC522供电要求,实现了低功耗和体积小的完美结合。

According to contactless reader of 13.56MHz in power and volume problems,the paper puts forward a low-power high security research model.The model used MSP430F2272 for control chip and RC522 for RF chip,In order to ensure stable and anti-interference ability,communication distance can achieve 10 mm premise,can make the system effectively reduce power consumption and volume.The experiment results show that the system,power supply suitable for 3.3 V MF RC522 power requirements,realizes the perfect combination of low power consumption.