简单介绍了三相SPWM逆变器的组成和工作原理，通过计算机对三相SPWM逆变器进行Matlab/Simulink建模和仿真，研究逆变电路的输入输出及其特性。仿真分析经逆变后得到的电压电流的特性。通过运用Matlab/Simulink和Power System Block（PSB）电力系统模块集工具箱仿真环境，对电路进行建模、计算和仿真分析。MATLAB软件中的Simulink，是为数不多的完全满足这些条件和要求的软件。并且凭借他在科学计算方面的天然优势建立了从设计构思到最终实现设计要求的可视化桥梁。被广泛应用于线性系统、非线性系统及数字信号处理的建模和仿真中。
上传时间： 2013-11-12
上传用户：yulg
nios ii 入门手册中文版 一、建立quartus ii工程 首先，双击quartus ii 9.1图标打开软件，界面如下图1.1所示 1.1 新建工程 （1） 点击file –>New Project Wizard 出现图1.2所示的对话框。 （2） 点击Next。如图1.3所示：第一行是工程的路径，二、三行为实体名。填好后点击Next。 （3）此处可选择加入已设计好的文件到工程，点击Next。 （4）选择设计器件如图1.5所示。接着点击Next （5）接着点击Next。无需改动，点击finish，显示如下图所示。 （6）此时，工程已经建立完成，接下来需要建立一个原理图输入文件，点击file –>New ->Block Diagram/Schematic File 后如图所示。
上传时间： 2014-12-25
上传用户：cx111111
The LPC1769/68/67/66/65/64 are ARM Cortex-M3 based microcontrollers for embedded applications featuring a high level of integration and low power consumption. The ARM Cortex-M3 is a next generation core that offers system enhancements such as enhanced debug features and a higher level of support block integration.
上传时间： 2014-02-20
上传用户：13215175592
The LPC1700 Ethernet block contains a full featured 10 Mbps or 100 Mbps Ethernet MAC (Media Access Controller) designed to provide optimized performance through the use of DMA hardware acceleration. Features include a generous suite of control registers, half or full duplex operation, flow control, control frames, hardware acceleration for transmit retry, receive packet filtering and wake-up on LAN activity. Automatic frame transmission and reception with Scatter-Gather DMA off-loads many operations from the CPU.
上传时间： 2013-11-09
上传用户：geshaowei
本文介绍了一种基于单片机的健身车转速测量系统。该系统具有电路简单、使用方便等特点。文中详细介绍了该系统的工作原理,并且给出了它的硬件原理图和软件设计程序框图。关键词:转速 单片机 测量ABSTRACT :This paper introduces a measuring system of the rotational velocity of exercise bike based on single - chip microcomputer . It has such advantages : simple circuit ,convenient use and so on. The work principle is presented in detail in this paper and the block diagram of hardware and program flow chart are giv2 en as well .KEYWORDS :Rotational velocity Single - chip microcomputer Measuring
上传时间： 2013-11-02
上传用户：源弋弋
In this document, the term Ô60xÕ is used to denote a 32-bit microprocessor from the PowerPC architecture family that conforms to the bus interface of the PowerPC 601ª, PowerPC 603ª, or PowerPC 604 microprocessors. Note that this does not include the PowerPC 602ª microprocessor which has a multiplexed address/data bus. 60x processors implement the PowerPC architecture as it is speciÞed for 32-bit addressing, which provides 32-bit effective (logical) addresses, integer data types of 8, 16, and 32 bits,and ßoating-point data types of 32 and 64 bits (single-precision and double-precision).1.1 Overview The MPC106 provides an integrated high-bandwidth, high-performance, TTL-compatible interface between a 60x processor, a secondary (L2) cache or additional (up to four total) 60x processors, the PCI bus,and main memory. This section provides a block diagram showing the major functional units of the 106 and describes brießy how those units interact.Figure 1 shows the major functional units within the 106. Note that this is a conceptual block diagram intended to show the basic features rather than an attempt to show how these features are physically implemented on the device.
上传时间： 2013-10-08
上传用户：18711024007
SF-CY3 FPGA套件开发指南Ver6.00 （by特权同学）
上传时间： 2013-10-22
上传用户：songnanhua
支持40 GbE、100 GbE和Interlaken的高密度硬核MLD/PCS模块，从而提高系统集成度。 宽带数据缓冲，提供1,600-Mbps外部存储器接口。 数据包处理和流量管理功能的高效实现。 更高的系统性能，同时保持功耗和成本预算不变。
上传时间： 2013-11-23
上传用户：asdgfsdfht
基于RAM块的应用
上传时间： 2013-11-02
上传用户：box2000
This application note describes how the existing dual-port block memories in the Spartan™-IIand Virtex™ families can be used as Quad-Port memories. This essentially involves a dataaccess time (halved) versus functionality (doubled) trade-off. The overall bandwidth of the blockmemory in terms of bits per second will remain the same.
上传时间： 2013-11-08
上传用户：lou45566
