為降低成本和解決現(xiàn)有膜片鉗放大器系統(tǒng)中PC機(jī)的干擾問題，研究了一種基于單片機(jī)的膜片鉗放大器小系統(tǒng)。該系統(tǒng)采用ADI公司生產(chǎn)的ADuC841作為控制核心，并且配置相應(yīng)的液晶顯示模塊LCM3202401。模擬電路部分采用高輸入阻抗的AD8627實(shí)現(xiàn)微電流信號的采集，并由后級電路進(jìn)行信號的放大和電阻電容的補(bǔ)償。它具有硬件電路簡單、體積小、使用方便的特點(diǎn)。既可以單獨(dú)作為小系統(tǒng)實(shí)現(xiàn)采集和顯示，也可以通過紅外方式和PC機(jī)進(jìn)行通訊，在PC機(jī)上進(jìn)行信號的處理。
Abstract:
In order to reduce cost and resolve the interferential problem with PC in existing patch clamp amplifiers, a small patch clamp amplifier system design based on microcontroller is studied. It adopts a new high performance microconverter ADuC841 by the ADI as the control core in the system, configuring a liquid crystal module LCM3202401. In the analog circuit, AD8627 with high input impedance is used to detect the low current，signal magnification, as well as resistance and capacitance compensation are accomplished by subsequent circuits. It has the advantage of simple hardware circuit design, small Volume and convenient operation. It can either be used as an independent system to measure and show signal detected or transmit to PC by infrared ray.
基于PIC單片機(jī)的低功耗讀卡器硬件設(shè)計(jì):本文提出了一個完整的基于串口的智能讀卡器子系統(tǒng)設(shè)計(jì)方案并將其實(shí)現(xiàn)。讀卡器的設(shè)計(jì)突出了小型化的要求，全部器件使用貼片封裝。為了減小讀卡器的體積，設(shè)計(jì)中還使用了串口竊電的技術(shù)，使用串口信號線直接給讀卡器供電。為此，讀卡器使用了省電的設(shè)計(jì)，采用了省電的集成電路，并大膽簡化了許多傳統(tǒng)的設(shè)計(jì)電路。關(guān)鍵字： 讀卡器， 單片機(jī)， 串口竊電
Abstract： This paper aims to put forward a complete design of Smart IC card reader based onSerial Port and propose the way of realizing it for the purpose of Network Security. SMD isadopted to make Smart IC reader smaller in this design. To reduce the Volume of Smart ICreader， Serial Port powered technology is employed to get power from the signal line of Serial Port. For this reason， low-power consumption components are adopted in the design and some traditional designs are simplified to reduce the power consumption.Keywords： Card Reader； Single-chip Computer； Serial Port Powered
IC 卡系統(tǒng)保存了加密算法所需要的工作密鑰，供加密算法對網(wǎng)絡(luò)上傳輸?shù)臄?shù)據(jù)加密使用，是整個系統(tǒng)網(wǎng)絡(luò)安全的核心。在IC 卡子系統(tǒng)中，讀卡器是一個重要的部分。它起著管理IC卡、在IC 卡和PC或網(wǎng)絡(luò)計(jì)算機(jī)間傳遞數(shù)據(jù)的重要作用。本文以一片PIC單片機(jī)為核心完成了基于RS232 串口的讀卡器的硬件設(shè)計(jì)。
FPGAs have changed dramatically since Xilinx first introduced them just 15 years ago. In thepast, FPGA were primarily used for prototyping and lower Volume applications; custom ASICswere used for high Volume, cost sensitive designs. FPGAs had also been too expensive and tooslow for many applications, let alone for System Level Integration (SLI). Plus, the development
FPGAs have changed dramatically since Xilinx first introduced them just 15 years ago. In thepast, FPGA were primarily used for prototyping and lower Volume applications; custom ASICswere used for high Volume, cost sensitive designs. FPGAs had also been too expensive and tooslow for many applications, let alone for System Level Integration (SLI). Plus, the development
Addfilter is a command-line application which adds and removes filter drivers for a given drive or Volume. It is intended to demonstrate how to insert a filter driver into the driver stack of a device. The sample illustrates how to do this by using the SetupDi APIs. The sample works on both x86 and Alpha platforms. It has only been tested in a 32-bit environment. Since Addfilter is not a driver, it does not deal with Plug and Play or Power Management.
This package implements a Kalman filter as described in the
paper "A Statistical Algorithm for Estimating Speed from Single Loop
Volume and Occupancy Measurements" by D. J. Dailey.
本文簡要介紹了集成電路MAX038的性能，并給出了以MAX038波形產(chǎn)生器為核心具有四種輸出波形的函數(shù)
信號發(fā)生器的設(shè)計(jì)方案。用這種方法設(shè)計(jì)的信號發(fā)生器具有結(jié)構(gòu)簡單、成本低、體積小等特點(diǎn)，很好地滿足
了一般的實(shí)驗(yàn)要求。
關(guān)鍵詞：集成電路 信號發(fā)生器 頻率
Abstract：The performance ofIC_MAX038 was introduced briefly in this paper．At the sa／ne time，a signal generator design making
with integrated circuit MAX038 is provided，which can produce four kinds of waveforms output．The signal generator
was of characters such as simple structur，cheap expense，small Volume and SO on．The signal generator contents the
demand of general experiments very wel1．
Key words：Integrated circuit Signal generator Frequency
