Remote monitoring telephone circuit schematics
資源簡介：Remote monitoring telephone circuit schematics
上傳時間： 2016-09-01
上傳用戶：84425894
資源簡介：wireless telephone circuit and analysis
上傳時間： 2014-10-30
上傳用戶：氣溫達上千萬的
資源簡介： 針對煤礦井下調度及緊急救援系統的需求，以DTMF編解碼模塊為核心，設計了具有自動撥號功能的新型電話系統。該系統利用MT8880對DTMF信號的編解碼功能實現一鍵撥號和遠程設置，通過檢測振鈴和忙音信號，完成自動摘機和掛機過程，配合AGC等外圍電路達到話音...
上傳時間： 2014-11-18
上傳用戶：ly1994
資源簡介：? Industrial remote monitoring systems and keep-alivecircuits spend most of their time in standby mode. Manyof these systems also depend on battery power, so powersupply effi ciency in standby state is very important tomaximize battery l...
上傳時間： 2013-11-23
上傳用戶：新手無憂
資源簡介：S3C2410 schematics and circuit diagram
上傳時間： 2017-03-06
上傳用戶：SimonQQ
資源簡介：remote notice board implementation using GSM source code with schematics are provided
上傳時間： 2017-07-27
上傳用戶：wff
資源簡介：? Low power operation of electronic apparatus has becomeincreasingly desirable. Medical, remote data acquisition,power monitoring and other applications are good candidatesfor battery driven, low power operation. Micropoweranalog circuit...
上傳時間： 2013-10-22
上傳用戶：rocketrevenge
資源簡介：Because WDM networks are circuit switched loss networks blocking may occur because of lack of resources. Also in circuit switched networks many paths use the same links. This toolbox answers the question how different paths with different l...
上傳時間： 2017-07-28
上傳用戶：zhangzhenyu
資源簡介：AD9923A_ICX445AKA schematics
上傳時間： 2013-07-26
上傳用戶：gpyz253344
資源簡介：·Phase-Locked Loop circuit Design
上傳時間： 2013-04-24
上傳用戶：lhc9102
資源簡介：資料->【E】光盤論文->【E5】英文書籍->CMOS Logic circuit Design (英).pdf
上傳時間： 2013-05-22
上傳用戶：ecooo
資源簡介：ATmega128 circuit for ORCAD
上傳時間： 2013-09-10
上傳用戶：xuanjie
資源簡介：? This application note features 8-, 10-, and 12-bit dataacquisition components in various circuit configurations.The circuits include battery monitoring, temperature sensing,isolated serial interfaces, and microprocessor andmicrocontrol...
上傳時間： 2014-01-15
上傳用戶：zq70996813
資源簡介：? Portable, battery-powered operation of electronic apparatushas become increasingly desirable. Medical, remotedata acquisition, power monitoring and other applicationsare good candidates for battery operation. In some circumstances,due ...
上傳時間： 2013-12-20
上傳用戶：Wwill
資源簡介：設計了水聲信號發生系統中的功率放大電路，可將前級電路產生的方波信號轉換為正弦信號，同時進行濾波、功率放大，使其滿足換能器對輸入信號的要求。該電路以單片機AT89C52，集成6階巴特沃思低通濾波芯片MF6以及大功率運算放大器LM12為核心，通過標準RS232接口...
上傳時間： 2013-11-20
上傳用戶：qwe1234
資源簡介：I.1 IntroductionI.2 Analog Integrated circuit DesignI.3 Technology OverviewI.4 NotationI.5 Analog circuit Analysis Techniques
上傳時間： 2013-10-29
上傳用戶：jokey075
資源簡介：The circuit Designer’s Companion Second edition Tim Williams
上傳時間： 2013-11-04
上傳用戶：fredguo
資源簡介：Linear Technology’s high performance battery management ICsenable long battery life and run time, while providing precision charging control, constantstatus monitoring and stringent battery protection. Our proprietary design techniques sea...
上傳時間： 2013-10-13
上傳用戶：yyq123456789
資源簡介：? Abstract: It is critically important that lithium-ion battery stacks have a good battery-management system for monitoring many cellvoltages and cell temperatures. Without that monitoring, thermal runaway can lead to a battery explosion...
上傳時間： 2013-10-29
上傳用戶：xwd2010
資源簡介：? Portable, battery-powered operation of electronic apparatushas become increasingly desirable. Medical, remotedata acquisition, power monitoring and other applicationsare good candidates for batteryoperation. In some circumstances,due t...
上傳時間： 2013-10-30
上傳用戶：hz07104032
資源簡介：AVR32801: UC3A3 Schematic Checklist Features ?? Power circuit ?? Reset circuit ?? USB connection ?? External bus interface ?? ABDAC sound DAC interface ?? JTAG and Nexus debug ports ?? Clocks and crystal oscillators ?? MMC, ...
上傳時間： 2014-12-26
上傳用戶：DXM35
資源簡介：從系統硬件設計和軟件構成上，介紹一種以AT89C52單片機為核心,通過無線遙控方法實現對預設電話自動撥號報警的智能呼救系統。系統提供了患者在緊急情況下無法使用電話報警時的一種報警手段。由用戶預設的多組電話號碼作為語音報警對象,預錄可長達20 s的語音信...
上傳時間： 2013-11-19
上傳用戶：wd450412225
資源簡介：基于幅移鍵控技術ASK（Amplitude-Shift Keying），以C8051F340單片機作為監測終端控制器，C8051F330D單片機作為探測節點控制器，采用半雙工的通信方式，通過監控終端和探測節點的無線收發電路，實現數據的雙向無線傳輸。收發電路采用直徑為0.8 mm的漆包線自行...
上傳時間： 2013-10-19
上傳用戶：xz85592677
資源簡介：? ?為解決輸油管道溫度壓力參數實時監測的問題，設計了以C8051F930單片機作為控制核心的超低功耗輸油管道溫度壓力遠程監測系統。現場儀表使用高精度電橋采集數據，通過433 MHz短距離無線通信網絡與遠程終端RTU進行通信，RTU通過GPRS網絡與PC上位機進行遠程...
上傳時間： 2013-11-07
上傳用戶：cuibaigao
資源簡介：Features? Complete DTMF Receiver? Low power consumption? Internal gain setting amplifier? Adjustable guard time? Central office quality? Power-down mode? Inhibit mode? Backward compatible withMT8870C/MT8870C-1Applications? Receiver...
上傳時間： 2013-11-20
上傳用戶：mpquest
資源簡介：The PCA9670 provides general purpose remote I/O expansion for most microcontrollerfamilies via the two-line bidirectional bus (I2C-bus) and is a part of the Fast-mode Plusfamily.The PCA9670 is a drop-in upgrade for the PCF8574 providing hig...
上傳時間： 2013-10-15
上傳用戶：stella2015
資源簡介：The PCA9671 provides general purpose remote I/O expansion for most microcontrollerfamilies via the two-line bidirectional bus (I2C-bus) and is a part of the Fast-mode Plus(Fm+) family.The PCA9671 is a drop in upgrade for the PCF8575 providi...
上傳時間： 2013-10-12
上傳用戶：laomv123
資源簡介：The PCA9672 provides general purpose remote I/O expansion for most microcontrollerfamilies via the two-line bidirectional bus (I2C-bus) and is a part of the Fast-mode Plusfamily.The PCA9672 is a drop-in upgrade for the PCF8574 providing hig...
上傳時間： 2013-10-23
上傳用戶：jasonheung
資源簡介：The PCA9673 provides general purpose remote I/O expansion for most microcontrollerfamilies via the two-line bidirectional bus (I2C-bus) and is a part of the Fast-mode Plusfamily.The PCA9673 is a drop in upgrade for the PCF8575 providing hig...
上傳時間： 2013-10-29
上傳用戶：wkchong
資源簡介：摘要：本水位監測報警器使用5V低壓直流電源（也可以用3節5號電池代替）就可以對5~15厘米的水位進行監測，用LED顯示和數碼管顯示水位，并可以對不再此范圍內的水位發出報警。主要采用CD4066、74LS86、74LS32、CD4511芯片，再加上數碼管、蜂鳴器、發光二極管、...
上傳時間： 2013-11-05
上傳用戶：王慶才
