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Description: VB DDE server used for connecting PLd woithdfndknsdfnkdjf
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Size: 33792 |
Author: Prasanth |
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Description: 8051实现直流电机PMW调速系统
本文所述的直流电机闭环调速系统是以低价位的单片微机8051为核心的，而通过单片机来实现电机调整又有多种途径，相对于其他用硬件或者硬件与软件相结合的方法实现对电机进行调整，采用PWM软件方法来实现的调速过程具有更大的灵活性和更低的成本，它能够充分发挥单片机的效能，对于简易速度控制系统的实现提供了一种有效的途径。而在软件方面，采用PLD算法来确定闭环控制的补偿量也是由数字电路组成的直流电机闭环调速系统所不能及的。曾经也试过用单片机直接产生PWM波形，但其最终效果并不理想，在使用了少量的硬件后，单片机的压力大大减小，程序中有充足的时间进行闭环控制的测控和计算，使得软件的运行更为合理可靠。-This article mainly introduces the method to generate the PWM signal by using MCS-51 single-chip computer to control the speed of a D.C. motor. It also clarifies the principles of PWM and the way to adjust the duty cycle of PWM signal. In addition, IR2110 has been used as an actuating device of the power amplifier circuit which controls the speed of rotation of D.C. motor. What’s more, tachogenerator is used in this system to measure the speed of D.C. motor. The result of the measurement is sent to A/D converter after passing the filtering circuit, and finally the feedback single is stored in the single-chip computer and participates in a PI calculation. As for the software, this article introduces in detail the idea of the programming and how to make it.
Key words: PWM signal tachogenerator PI calculation
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Size: 1024 |
Author: 陈与 |
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Description: 参数自整定PlD模糊控制仿真， 参数自整定PlD模糊控制仿真-Parameter self-tuning fuzzy control PlD simulation, parameter self-tuning fuzzy control PlD simulation, parameter self-tuning fuzzy control simulation PlD
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Size: 4096 |
Author: morgan |
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Description: A PLD Based Delta-Sigma DAC
Delta-Sigma modulation is the simple, yet powerful,
technique responsible for the extraordinary
performance and low cost of today s audio CD
players. The simplest Delta-Sigma DAC consists of a
Delta-Sigma modulator and a one bit DAC. Since,
both of these components can be realized using
digital circuits, it is possible to implement a low
precision Delta-Sigma DAC using a PLD.
A better understanding of the Delta-Sigma DAC can-A PLD Based Delta-Sigma DAC
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Size: 59392 |
Author: 郭晨 |
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Description: PLD学习入门教程，10分钟学会PLD设计-PLDxuexi
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Size: 757760 |
Author: randy |
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Description: Altera器件参数约束文件，应用于PLD芯片设计-Altera device parameter binding document, applies to PLD chip design
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Size: 336896 |
Author: dsgfdg |
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Description: 此开关稳压电源由AT89S52单片机作为控制核心。系统包括AD采样，PID控制，PWM输出，构成闭环系统。交流电源输入到整流模块，经整流滤波后输出平稳的直流电压。该直流电压直接输出至IGBT全桥变换器模块。高精度AD转换器将后端输出的电压电流信号由模拟信号量变为数字量供给单片机进行数字PlD运算，经过PID控制运算后，由控制模块输出PWM调制波形至IGBT栅极，构成一个闭环系统，控制电压稳定输出，从而实现开关稳压电源控制系统。此外，可由键盘输入欲得电压值，从LCD显示实际电压值，人机交互界面友好。-This switching power supply control by the core as a single-chip AT89S52. AD sampling system, PID control, PWM output, constitute a closed-loop system. AC power input to the rectifier module, after filtering by the rectifier output DC voltage stable. The output DC voltage directly to the IGBT full-bridge converter modules. Precision will be the back-end AD converter output voltage and current signals from the analog signal into a digital quantity to supply the number of single-chip computing PlD, after PID control algorithms, the control module from the output PWM waveform modulation IGBT gate to form a closed-loop system, the control voltage output, in order to achieve switching power supply control system. In addition, by欲得keyboard input voltage from the LCD displays the actual voltage value, user-friendly human-computer interaction.
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Size: 46080 |
Author: 周陶钧 |
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Description: PLD编程笔记与补充 学习PLD的可以看看！共3个文件！-PLD programming notes and a supplementary study PLD that can take a look! A total of 3 files!
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Size: 890880 |
Author: LHT |
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Description: EPXA10平台上PORTING LINUX驅動PCI的PLD硬體檔-EPXA10 platform PORTING LINUX-driven hardware profile PCI-PLD
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Size: 1764352 |
Author: fonglinlee |
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Description: simple altera pld example
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Size: 3111936 |
Author: Pol |
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Description: 可以对列表中每一项定制属性的列表框，支持文字编辑/图形选择/颜色选择/列表选择-The list can be a customized list of attributes for each box, to support text editing/graphic select/color selection/list to select
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Size: 23552 |
Author: 李方强 |
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Description: omplex for supporting Analog Devices ADC 78xx Series with PLD and microcontroller
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Size: 280576 |
Author: bitmaster |
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Description: 介绍了ABEL语言的基本使用，对PLD开发大有好处-ABEL language describes the basic use of the PLD development of the great advantages
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Size: 82944 |
Author: sunruili |
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Description: DSP硬件论文集，包含22篇DSP相关论文，caj格式。都是花银子买来的。
DSP与点阵式LCD显示器的接口设计.caj
DSP体系结构在提高实时信号处理方面的作用.caj
DSP器件的原理及应用.caj
DSP在机械设备故障诊断中的应用.caj
DSP应用的结构和发展方向.caj
DSP技术及其应用讲座(六)──数字通信用数字调制解调器中的DSP技.caj
DSP技术及其应用讲座第7讲语音识别及其DSP实现.caj
DSP技术及其应用讲座第三讲数字信号处理器的发展及其特点.caj
DSP技术及其应用讲座第二讲数字信号处理的理论基础.caj
DSP技术的发展与应用.caj
DSP结构(中).caj
DSP还是微处理器.caj
TMS320C2XXDSP芯片的软件开发与调试方法.caj
Windows环境下DSP的开发和语音分析工具SAC.caj
一种基于DSP的高速数据获取及处理系统.caj
一种基于PC机的多DSP系统设计.caj
一种高速PC-DSP控制系统.caj
基于PLD的DSP设计方案.caj
带有DSP芯片的新型实时数字图像处理系统.caj
数字信号处理器(DSP)的发展及市场动向.caj
数字通信用数字调制解调器中的DSP技术.caj
用可再配置FPGA实现DSP功能.caj
-DSP hardware, Proceedings, including the 22 DSP-related papers, caj format. Are the flowers of silver bought.
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Size: 1060864 |
Author: 刘伟 |
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Description: PLD设计技巧——消除组合逻辑产生的毛刺
PLD设计技巧——采用同步电路设计
PLD设计技巧——提高FLEX器件的系统速度
PLD设计技巧——如何处理内部三态电路 257K
PLD设计技巧——多时钟系统设计 314K
PLD设计技巧——用单片机配置FPGA
PLD设计技巧——如何处理建立/保持(Setup/hold)时间
-PLD design skills- to eliminate glitches generated by PLD combinational logic design skills- use of synchronous circuit design PLD design skills- to improve system speed FLEX device PLD design skills- how to deal with the internal three-state circuit 257K PLD design skills- Multi-Clock System Design 314K PLD design skills- with the MCU to configure FPGA PLD design skills- how to establish/maintain (Setup/hold) time
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Size: 11910144 |
Author: lurker |
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Description: 无论是用离散逻辑、可编程逻辑，还是用全定制硅器件实现的任何数字设计，为了成功地操作，可靠的时钟是非常关键的。设计不良的时钟在极限的温度、电压或制造工艺的偏差情况下将导致错误的行为，并且调试困难、花销很大。 在设计PLD/FPGA时通常采用几种时钟类型。时钟可分为如下四种类型：全局时钟、门控时钟、多级逻辑时钟和波动式时钟。多时钟系统能够包括上述四种时钟类型的任意组合。-fpga clock design.
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Size: 119808 |
Author: 李国军 |
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Description: 首先介绍了防抖型矩阵式键盘的整体设计思路,然后采用模块化设计方法对各个电路用VHDL进行设计,最后进行顶层文件设计和仿真,并用PLD器件下载验证.整个电路具有故障率低、使用灵活、便于修改、在系统可编程性及可移植性强等优点.
-First introduced the anti-shake-type matrix keyboard' s overall design concept, and then use a modular design approach to the various circuits VHDL design, last, top-level document design and simulation, and verification using PLD device to download. The whole circuit has a failure rate is low, the use of flexible, easy to modify, in the system programmability and portability strong advantages.
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Size: 501760 |
Author: jalon |
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Description: 可编程逻辑器件技巧， 可编程逻辑器件技巧-Programmable logic devices techniques, programmable logic devices techniques, programmable logic devices techniques
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Size: 246784 |
Author: xinr |
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Description: FPGA Express (FE) 是一个功能强大的引导综合FPGA和PLD架构的工具-FPGA Express (FE) is a powerful synthesis tool
for leading FPGA and PLD architectures
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Size: 778240 |
Author: 高 |
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Description:
该系统利用VHDL语言、PLD设计出租车计费系统，以MAX+PLUSⅡ软件作为开发平台，设计了出租车计费器系统程序并进行了程序仿真。使其实现计费以及预置和模拟汽车启动、停止、暂停等功能，并动态扫描显示车费数目
-In this system, VHDL language, PLD design taxi billing system to MAX+ PLUS Ⅱ software as a development platform to design a taxi meter system simulation program and conducted the program. To achieve automotive billing and pre-and simulation start, stop, pause function, and dynamic scan showed the number of fare
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Size: 178176 |
Author: xing |
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