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  • 3.5A Synchronous buck Converter AX3121

    AX3121 consists of step-down switching regulator with synchronous PWMconverter. These devise inc

    標簽: Synchronous Converter 3121 buck

    上傳時間: 2013-07-19

    上傳用戶:zhuyibin

  • 西門子密鑰

    西門子s7-300plc編程軟件step-7 v5.4電子密鑰 (無限期)。

    標簽: 西門子 密鑰

    上傳時間: 2013-06-08

    上傳用戶:yepeng139

  • LM621無刷電機換向器

    General Description The LM621 is a bipolar IC designed for commutation of brushless DC motors. The part is compatible with both three- and four-phase motors. It can directly drive the power switching devices used to drive the motor. The LM621 provides an adjustable dead-time circuit to eliminate ``shootthrough'' current spiking in the power switching circuitry. Operation is from a 5V supply, but output swings of up to 40V are accommodated. The part is packaged in an 18-pin, dual-in-line package.

    標簽: 621 LM 無刷電機

    上傳時間: 2013-07-24

    上傳用戶:sdq_123

  • 74LS48.pdf

    英文描述: BCD-to-Seven-Segment Decoder Driver(Internal Pull-up outputs) 中文描述: BCD碼到七段解碼器驅動程序(內部上拉輸出)

    標簽: 74 48 LS

    上傳時間: 2013-07-13

    上傳用戶:cc1015285075

  • 74LS190.pdf

    英文描述: Synchronous Up/Down Decade Counters(single clock line) 中文描述: 同步向上/向下十年計數器(單時鐘線)

    標簽: 190 74 LS

    上傳時間: 2013-06-18

    上傳用戶:haohaoxuexi

  • LPC1788用戶手冊LPC178X_7X_Rev3

    LPC178* 177*用戶手冊 LPC178x/7x 32-bit ARM Cortex-M3 microcontroller; up to 512 kB flash and 96 kB SRAM; USB Device/Host/OTG; Ethernet; LCD; EMC Rev. 3 — 27 December 2011 Objective data sheet

    標簽: LPC X_Rev 1788 178

    上傳時間: 2013-04-24

    上傳用戶:胡佳明胡佳明

  • 電臺維修模擬訓練系統設計方法研究

    Methods for designing a maintenance simulation training system for certain kind of radio are introduced. Fault modeling method is used to establish the fault database. The system sets up some typical failures, follow the prompts trainers can locate the fault source and confirm the type to accomplish corresponding fault maintenance training. A training evaluation means is given to examining and evaluating the training performance. The system intuitively and vividly shows the fault maintenance process, it can not only be used in teaching, but also in daily maintenance training to efficiently improve the maintenance operation level. Graphical programming language LabVIEW is used to develop the system platform.

    標簽: 電臺維修 模擬訓練 方法研究 系統設計

    上傳時間: 2013-11-19

    上傳用戶:3294322651

  • 凌力爾特工業信號鏈路

    Industrial systems demand semiconductors that are precise, flexibleand reliable. Linear Technology offers a broad line of high performanceanalog ICs that simplify system design with rugged devices featuringparameters fully guaranteed over the -40°C to 85°C temperature range.We back this up with knowledgeable applications support, long productlife cycles and superior on-time delivery.

    標簽: 凌力爾特 工業信號 鏈路

    上傳時間: 2013-11-02

    上傳用戶:xiaodu1124

  • MAX17600數據資料

     The MAX17600–MAX17605 devices are high-speedMOSFET drivers capable of sinking /sourcing 4A peakcurrents. The devices have various inverting and noninvertingpart options that provide greater flexibility incontrolling the MOSFET. The devices have internal logiccircuitry that prevents shoot-through during output-statchanges. The logic inputs are protected against voltagespikes up to +14V, regardless of VDD voltage. Propagationdelay time is minimized and matched between the dualchannels. The devices have very fast switching time,combined with short propagation delays (12ns typ),making them ideal for high-frequency circuits. Thedevices operate from a +4V to +14V single powersupply and typically consume 1mA of supply current.The MAX17600/MAX17601 have standard TTLinput logic levels, while the MAX17603 /MAX17604/MAX17605 have CMOS-like high-noise margin (HNM)input logic levels. The MAX17600/MAX17603 are dualinverting input drivers, the MAX17601/MAX17604 aredual noninverting input drivers, and the MAX17602 /MAX17605 devices have one noninverting and oneinverting input. These devices are provided with enablepins (ENA, ENB) for better control of driver operation.

    標簽: 17600 MAX 數據資料

    上傳時間: 2013-12-20

    上傳用戶:zhangxin

  • 高精度I2C實時時鐘的設計

    Abstract: This application note presents an overview of the operational characteristics of accurate I²C real-time clocks (RTCs),including the DS3231, DS3231M, and DS3232. It focuses on general application guidelines that facilitate use of device resources forpower management, I²C communication circuit configurations, and I²C characteristics relative to device power-up sequences andinitializations. Additional discussions on decoupling are provided to support developing strategies for mitigating power-supply pushingof device frequency.

    標簽: I2C 高精度 實時時鐘

    上傳時間: 2013-11-23

    上傳用戶:WMC_geophy

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