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电源技术  具有100uV输出噪声的单片开关稳压器

&nbsp; Size, output flexibility and efficiency advantages havemade switching regulators common in electronic apparatus.The continued emphasis on these attributes hasresulted in circuitry with 95% efficiency that requiresminimal board area. Although these advantages are welcome,they necessitate c ...

https://www.eeworm.com/dl/505/24380.html

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电源技术  PCMCIA卡和卡插槽的电源管理系统

&nbsp; Most portable computers have built-in sockets to acceptsmall PC cards for use as extended memories, fax modems,network interfaces, wireless communicators and awide assortment of other functions. The Personal ComputerMemory Card International Association (PCMCIA)has released specifications ...

https://www.eeworm.com/dl/505/24398.html

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电源技术  Circuitry for Single Cell Operation

&nbsp; 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 to space, power or reliability considerations,it is pre ...

https://www.eeworm.com/dl/505/24408.html

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电源技术  电网现场作业管理系统的信息化设计

为了改变目前电网现场作业管理的变电巡检、变电检修试验、输电线路巡检检修等管理系统各自独立运行，信息不能共享，功能、效率受限，建设和维护成本高的现状，提出了采用B/S+C/S构架模式，将各现场作业管理模块和生产MIS（管理系统）集成为一体的现场作业管理系统的设计方案，做到各子系统和生产MIS软硬资源共享，做到同一 ...

https://www.eeworm.com/dl/505/24419.html

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电源技术  Wide-input dc/dc modules offer

When a system designer specifies a nonisolated dc/dc powermodule, considering the needed input voltage range isequally as important as considering the required performanceattributes and features. Generally, nonisolated moduleshave either a narrow or a wide input voltage range. Narrowinputmodules typ ...

https://www.eeworm.com/dl/505/24438.html

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电源技术  电源滤波器POWER LINE FILTERS

应用 APPLICATIONS·电视机、录像机、音频设备、显示器、复印机、打印装置、游戏机及计算机等。·用于开关电源线性滤波器。·削除 TV、VTR、VCR及监听器泄漏杂音。·用于OA 设备、通信设备和其它器件。·TV set, recorder, sound-frequency equipment, show-scope, photocopy-scope, typewrite equipment, recreation-scope ...

https://www.eeworm.com/dl/505/24759.html

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单片机编程  基于HITAG读写芯片HTRC110的读写设备设计

Designing read/write device (RWD) units for industrial RF-Identification applications is strongly facilitated by the NXP Semiconductors HITAG Reader Chip HTRC110. All needed function blocks, like the antenna driver, modulator demodulator and antenna diagnosis unit, are integrated in the HTRC11 ...

https://www.eeworm.com/dl/502/29066.html

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单片机编程  Microchip PIC系列单片机RS232通讯应用

Digitemp Junior &ndash; An RS-232 Port-Powered Digital Thermometer Digitemp Jr. is a device that is designed to measure and report ambient temperature. When connected to an RS-232 port on any PC, it will periodically measure and report in ASCII form the ambient temperature in degrees Celsius ...

https://www.eeworm.com/dl/502/29089.html

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单片机编程  基于MT8880的一键拨号电话系统设计

　　针对煤矿井下调度及紧急救援系统的需求，以DTMF编解码模块为核心，设计了具有自动拨号功能的新型电话系统。该系统利用MT8880对DTMF信号的编解码功能实现一键拨号和远程设置，通过检测振铃和忙音信号，完成自动摘机和挂机过程，配合AGC等外围电路达到话音清晰流畅的效果。　　Abstract: 　　To meet the demand f ...

https://www.eeworm.com/dl/502/29090.html

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单片机编程  基于MSP430F1611单片机的音频信号分析仪设计

　　为了使音频信号分析仪小巧可靠，成本低廉，设计了以2片MSP430F1611单片机为核心的系统。该系统将音频信号送入八阶巴特沃兹低通滤波器，对信号进行限幅放大、衰减、电平位移、缓冲，并利用一单片机负责对前级处理后的模拟信号进行采样，将采集得到的音频信号进行4 096点基2的FFT计算，并对信号加窗函数提高分辨率，另 ...

https://www.eeworm.com/dl/502/29096.html

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