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  • 如何设计一个高效率的DC-DC转换器

    Abstract: The DS1875 features a pulse-width modulation (PWM) controller that can be used to control aDC-DC converter. The DC-DC converter can then be used to generate the high bias voltages necessaryfor avalanche photodiodes (APDs). This application note describes the operation of a boost converte ...

    /dl/23373.html

    标签: DC-DC 如何设计 高效率 转换器

    上传时间: 2013-10-26

    上传用户:lyson

  • 如何保护集成FET的电源开关

    Abstract: Some types of loads require more current during startup than when running. Other loads can be limited to a lower-powercurrent during startup but require a higher operating current. This article describes an application circuit that automatically adjusts apower circuit’s overcurrent ...

    /dl/24193.html

    标签: FET 保护 集成 电源开关

    上传时间: 2013-10-23

    上传用户:swaylong

  • 基于微网的光伏变流器系统设计

    光伏发电是未来新能源发电重要方向之一,而光伏变流器是光伏发电系统的核心。介绍一种基于微网理念的光伏变流器设计。以该变流器为核心的光伏发电系统可以看做一个小型的微网系统。该系统能根据外部电网情况,工作于并网模式和离网模式。介绍了该系统的各个组成部件的设计以及变流器主电路部分器件的选型。最后,由实验样机 ...

    /dl/24423.html

    标签: 光伏 变流器 系统设计

    上传时间: 2014-12-24

    上传用户:Shaikh

  • DS8005评估套件入门

    Abstract: This application note describes how to build, debug, and run applications on the on-board MAXQ622microcontroller to interface with the DS8005 dual smart card interface. This is demonstrated in both IAREmbedded Workbench and the Rowley CrossWorks IDE, using sample code provided with the k ...

    /dl/25792.html

    标签: 8005 DS 评估套件

    上传时间: 2013-10-29

    上传用户:ddddddd

  • 西门子S7-300 PLC模拟量转换

    Analog Inputs and Outputs in an S7 PLC are represented in the PLC as a 16-bit integer. Over the nominal span of the analog input or output, the value of this integer will range between - 27648 and +27648. However, it is easier to use the analog values if they are scaled to the same units and ra ...

    /dl/29048.html

    标签: 300 PLC 西门子 模拟量

    上传时间: 2013-11-17

    上传用户:3294322651

  • 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 ...

    /dl/29066.html

    标签: HITAG HTRC 110 读写芯片

    上传时间: 2013-10-22

    上传用户:zhengjian

  • MAXX9257 MAX9258芯片可编程SerDes持续时间计算

    The MAX9257/MAX9258 programmable serializer/deserializer (SerDes) devices transfer both video data and control signals over the same twisted-pair cable. However, control data can only be transmitted during the vertical blank time, which is indicated by the control-channel-enabled output (CCEN) sig ...

    /dl/29069.html

    标签: SerDes MAXX 9257 9258

    上传时间: 2014-01-24

    上传用户:xingisme

  • 基于AVR单片机的闭环控制系统

      针对科研实验中对拉压千斤顶加载过程控制的需要,采用ATmega128单片机控制步进电机进而实现对执行系统的电动泵站实行自动控制。对力和位移的数据采集与处理及用步进电机控制电动泵站手柄的技术细节作了重点描述。通过单片机的A/D变换器对AMP放大模块采集的电桥信号作量化处理,千斤顶的操控手柄位置依电动油泵阀门开 ...

    /dl/29071.html

    标签: AVR 单片机 闭环控制

    上传时间: 2014-01-16

    上传用户:hasan2015

  • AVR32801: UC3A3 Schematic Chec

    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 • ...

    /dl/29159.html

    标签: Schematic 32801 UC3A3 Chec

    上传时间: 2014-12-26

    上传用户:DXM35

  • 基于ATmega16L单片机的温度控制系统设计

     设计一种基于ATmega16L单片机的温度控制系统,阐述该系统的软硬件设计方案。采用模块化设计方法,利用增量式PID算法使被控对象的温度值趋于给定值。实验结果表明该系统具有良好的检测和控制功能。 Abstract:  This paper designs a temperature control system based on ATmega16L,describes the hardware and ...

    /dl/29182.html

    标签: ATmega 16L 16 单片机

    上传时间: 2013-10-09

    上传用户:stvnash