低压低功耗全摆幅CMOS运算放大器设计与仿真pdf,ABSTRACT
In recent years, more and more electronic products with battery
supply are widely used, which cries for adopting low voltage analog
circuits to reduce power consumption, therefore low voltage, low power
analog circu
数字开关电源的设计与实现pdf,数字开关电源的设计与实现广东工业大学硕士学位论文
Abstract
Power is an important component of electronic equipment, electronic equipment
directly affects the quality of the work, so more and more attention. with the power
electronics industry, electronic equi
RFID(Radio Frequency IDentification)射频识别技术,又称电子标签、无线射频识别,是一种通信技术。相对于传统的磁卡及IC卡技术具有非接触、阅读速度快、无磨损等特点,在最近几年里得到快速发展。为加强中国工程师对该技术的理解,本文详细介绍了RFID技术的工作原理、分类、标准以及相关应用。
RFID技术利用无线射频方式在阅读器和射频卡之间进行非接触双向数据传输,以达到目标识别和数据交换的目的。与传统的条型码、磁卡及IC卡相比,射频卡具有非接触、阅读速度快、无磨损、