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  • 电源调整与虚拟地

    Abstract: Rail splitting is creating an artificial virtual ground as a reference voltage. It is used to set the signalto match the op amp's "sweet spot." An op amp has the most linear- and distortion-free qualities at that sweetspot. Typically, the sweet spot occurs near the center between the ...

    /dl/24151.html

    标签: 电源调整 虚拟地

    上传时间: 2013-10-23

    上传用户:wushengwu

  • 8阶开关电容滤波器MAX29X系列的应用设计

    MAX29X是美国MAXIM公司生瓣的8阶开关电容低通滤波器,由于价格便宜、使用方便、设计简单,在通讯、信号自理等领域得到了广泛的应用。本文就其工作原理、电气参数、设计注意事项等问题作了讨论,具有一定的实用参考价值。关键词:开关电容、滤波器、设计 1 引言     开关电容滤波器在近些年得到了迅速的 ...

    /dl/24900.html

    标签: 29X MAX 29 8阶

    上传时间: 2013-10-18

    上传用户:macarco

  • PLCISM SP3仿真PLC之间的通讯

    西门子从PLCSIM V5.4 SP3开始增加了对与PLC之间通讯的仿真能力,但是这种能力仅仅局限于Profibus-S7之间的通讯。 S7通讯是S7系列PLC基于MPI,Profibus,Ethernet网络的一种优化的通讯协议,主要用于S7-400之间,S7-300与S7-40之间的主对主通讯,也非常适合S7 PLC与HMI通讯,例如与操作面板OP/TP以及上位监控软件Wincc的 ...

    /dl/29052.html

    标签: PLCISM PLC SP3 仿真

    上传时间: 2013-10-12

    上传用户:13736136189

  • EZ-USB FX系列单片机USB外围设备设计与应用

    EZ-USB FX系列单片机USB外围设备设计与应用:PART 1 USB的基本概念第1章 USB的基本特性1.1 USB简介21.2 USB的发展历程31.2.1 USB 1.131.2.2 USB 2.041.2.3 USB与IEEE 1394的比较41.3 USB基本架构与总线架构61.4 USB的总线结构81.5 USB数据流的模式与管线的概念91.6 USB硬件规范101.6.1 USB的硬件特性111.6.2 USB接口的电气特 ...

    /dl/31136.html

    标签: EZ-USB USB 单片机 外围设备

    上传时间: 2013-11-21

    上传用户:努力努力再努力

  • PCB设计经典资料

    本文将接续介绍电源与功率电路基板,以及数字电路基板导线设计。宽带与高频电路基板导线设计a.输入阻抗1MHz,平滑性(flatness)50MHz 的OP增幅器电路基板图26 是由FET 输入的高速OP 增幅器OPA656 构成的高输入阻抗OP 增幅电路,它的gain取决于R1、R2,本电路图的电路定数为2 倍。此外为改善平滑性特别追加设置可以加大噪讯ga ...

    /dl/40423.html

    标签: PCB

    上传时间: 2013-11-09

    上传用户:z754970244

  • 运算放大器稳定时间的测量

    The AN10 begins with a survey of methods for measuring op amp settling time. This commentary develops into circuits for measuring settling time to 0.0005%. Construction details and results are presented. Appended sections cover oscilloscope overload limitations and amplifier frequency compensation ...

    /dl/41893.html

    标签: 运算放大器 稳定时间 测量

    上传时间: 2013-11-14

    上传用户:JIMMYCB001

  • 基于微处理器的5V系统接口

    This application note discusses a variety of approaches for interfacing analog signals to 5V powered systems. Synthesizing a "rail-to-rail" op amp and scaling techniques for A/D converters are covered. A voltage-to-frequency converter, applicable where high resolution is required, is also presente ...

    /dl/42418.html

    标签: 微处理器 系统接口

    上传时间: 2013-10-12

    上传用户:181992417

  • 一个命令行运算器源代码 用C++写的命令行运算器

    一个命令行运算器源代码 用C++写的命令行运算器,支持加、减、乘、除、乘方和小括号(可嵌套),乘方的符号是^^,因为在WINDOWS的命令行模式下^是一个连接符。 用法:cal expression expression = expression op expression expression = (expression) op = + | - | * | / | ^^ ...

    /dl/164943.html

    标签: 命令行 运算器 源代码

    上传时间: 2013-12-24

    上传用户:gxmm

  • The program was written with some object-orientation in mind, which means that all functions that op

    The program was written with some object-orientation in mind, which means that all functions that operate on a certain structure, has the structure s name as prefix in the function name, for example "Bitstream_get" which gets bits from a bitstream structure.

    /dl/172299.html

    标签: object-orientation that functions program

    上传时间: 2014-01-15

    上传用户:epson850

  • The latest release, ver 1.16 of the ARM (7TDMI, 720T, 920T) port for uC/OS-II V2.61 (and higher) inc

    The latest release, ver 1.16 of the ARM (7TDMI, 720T, 920T) port for uC/OS-II V2.61 (and higher) includes ports for the following platforms: 1. S3c2410x ( ARM920T from Samsung ) on SMDK2410 eval board. 2. LPC2xxx - LPC210x & LPC213x ( ARM7TDMI-S from Philips ) on IAR s Kickstart & OLIMEX boards. 3. ...

    /dl/224033.html

    标签: release latest higher OS-II

    上传时间: 2014-01-26

    上传用户:小眼睛LSL