Servomotors are available as AC or DC motors. Early servomotors were generally DC motors because the only type of control for large currents was through SCRs for many years. As transistors became capable of controlling larger currents and switching the large currents at higher frequencies, the AC servomotor became used more often. Early servomotors were specifically designed for servo amplifiers. Today a class of motors is designed for applica-tions that may use a servo amplifier or a variable-frequency controller, which means that a motor may be used in a servo system in one application, and used in a variable-frequency drive in another application. Some companies also call any closed-loop system that does not use a stepper motor a servo system, so it is possible for a simple AC induction motor that is connected to a velocity controller to be called a servomotor.
资源简介：Servomotors are available as AC or DC motors. Early servomotors were generally DC motors because the only type of control for large currents was through SCRs for many years. As transistors became capable of controlling larger currents and s...
上传时间： 2014-08-10
上传用户：源码3
资源简介：Introduction A shared library is a collection of functions that are available for use by one or more applications running on a system. On Windows operating systems, the library is compiled into a dynamic link library (.dll) file. At run-ti...
上传时间： 2014-01-26
上传用户：2467478207
资源简介：Microsoft Press books are available through booksellers and distributors worldwide. For further information about international editions, contact your local Microsoft Corporation office or contact Microsoft Press International directly at...
上传时间： 2013-12-27
上传用户：wuyuying
资源简介：Individual files are available in the following links: Bessjy -- Bessel functions Jn and Yn for real argument and integer or real order. Bessik -- Modified Bessel function In and Kn for real argument and integer or real order. CBessj...
上传时间： 2013-12-13
上传用户：hewenzhi
资源简介：THE CONTENTS OF THIS DOCUMENT ARE PROVIDED "AS IS". EXCEPT AS REQUIRED BY APPLICABLE LAW, NO WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PA...
上传时间： 2013-12-06
上传用户：rishian
资源简介：These patch files are supplied as part of ADS 1.2.1.
上传时间： 2013-12-25
上传用户：cccole0605
资源简介：Pai has been a good sequence array. A few are imported, as called for under the original law will insert its array
上传时间： 2014-01-14
上传用户：凤临西北
资源简介：THIS book covers the Java™ Native Interface (JNI). It will be useful to you if you are interested in any of the following: • integrating a Java application with legacy code written in languages such as C or C++ • incorpor...
上传时间： 2013-12-12
上传用户：ljmwh2000
资源简介：The Library Reference describes the C functions, data types, and protocols that are included as part of the QNX Neutrino RTOS.
上传时间： 2014-01-17
上传用户：lizhen9880
资源简介：Snunuiot are flying as far as you send them... and then they die ha ha ha
上传时间： 2017-05-17
上传用户：semi1981
资源简介：Implements layered decoding using the sum-product-algorithm. Codes are input as a .txt file in A-list format.
上传时间： 2014-12-01
上传用户：WMC_geophy
资源简介：Objectives The purpose of this notebook is to give you a brief introduction to the DiscreteWavelets Toolbox and show you how to use it to load images. Some basic image manipulation is illustrated as well. You will also learn ...
上传时间： 2017-06-30
上传用户：康郎
资源简介：The design is transformed into a wiener filtering problem and the parameters are modeled as correlated ARIMA processes with known dynamics.
上传时间： 2014-12-06
上传用户：ardager
资源简介：Abstract: Alexander Graham Bell patented twisted pair wires in 1881. We still use them today because they work so well. In addition we have the advantage ofincredible computer power within our world. Circuit simulators and filter design pro...
上传时间： 2014-11-26
上传用户：Vici
资源简介：The TRS232E is a dual driver/receiver that includes a capacitive voltage generator to supply TIA/RS-232-Fvoltage levels from a single 5-V supply. Each receiver converts TIA/RS-232-F inputs to 5-V TTL/CMOS levels.This receiver has a typical ...
上传时间： 2013-10-07
上传用户：waitingfy
资源简介：As all of you know, MATLAB is a powerful engineering language. Because of some limitation, some tasks take very long time to proceed. Also MATLAB is an interpreter not a compiler. For this reason, executing a MATLAB program (m file) is time...
上传时间： 2013-12-06
上传用户：huql11633
资源简介：Uniform random number generators by Agner Fog, 2001 - 2007 randomc.zip contains a C++ class library of uniform random number generators of good quality. The random number generators found in standard libraries are often of a poor q...
上传时间： 2014-12-01
上传用户：royzhangsz
资源简介：There are three ways of specifying an immediate dump Immediate dumps can be specified using the ALTER SESSION command ALTER SESSION SET EVENTS immediate trace name dump level level Immediate dumps can be specified in ORADEB...
上传时间： 2014-01-17
上传用户：mpquest
资源简介：Do you as a programmer for their own software to be illegal to crack the use of distress, this is a hot issue programmers abroad, I believe you made reference to this source will be a number of anti-cracking tools.
上传时间： 2014-12-21
上传用户：李梦晗
资源简介：there are few programs for 8086 which may be used for some understanding application in the .asm language
上传时间： 2013-12-13
上传用户：我们的船长
资源简介：This reference design describes the design of a 3-phase AC induction vector control drive with position encoder coupled to the motor shaft. It is based on Motorola’s DSP56F805 dedicated motor control device. AC induction motors, which cont...
上传时间： 2020-06-10
上传用户：shancjb
资源简介：Spartane-6 LXand LXT FPGAs are available in various speed grades, with -3 having the highest performance. The DC and AC electrical parameters of the Automotive XA Spartan-6 FPGAs and Defense-grade Spartan-6Q FPGAs devices are equivalent to ...
上传时间： 2022-06-19
上传用户：
资源简介：SL811开发资料_包含源程序_电路图_芯片资料:SL811HS Embedded USB Host/Slave Controller.The SL811HS is an Embedded USB Host/Slave Controller capable of communicate with either full-speed or low-speed USB peripherals. The SL811HS can interface t...
上传时间： 2013-12-22
上传用户：a82531317
资源简介：(1) This pin may function as either a JTAG port or a user I/O pin. If the device is configured to use the JTAG ports for in-system programming, this pin is not available as a user I/O pin. (2) The user I/O pin count includes dedicated inp...
上传时间： 2014-01-27
上传用户：qwe1234
资源简介：Commercially available active noise control headphones rely on fixed analog controllers to drive "anti-noise" loudspeakers. Our design uses an adaptive controller to optimally cancel unwanted acoustic noise. This headphone would be particul...
上传时间： 2013-12-04
上传用户：dyctj
资源简介：为解决直流逆变交流的问题，有效地利用能源，让电源输出最大功率，设计了高性能的基于IR2101最大功率跟踪逆变器，并以SPMC75F2413A单片机作为主控制器。高电压、高速功率的MOSFET或IGBT驱动器IR2101采用高度集成的电平转换技术，同时上管采用外部自举电容上电...
上传时间： 2013-11-17
上传用户：lliuhhui
资源简介：The MC68HC05K0 is a low cost, low pin countsingle chip microcomputer with 504 bytes of userROM and 32 bytes of RAM. The MC68HC05K0 isa member of the 68HC05K series of devices whichare available in 16-pin DIL or SOIC packages.It uses the sam...
上传时间： 2014-01-24
上传用户：zl5712176
资源简介：6小时学会labview, labview Six Hour Course – Instructor Notes This zip file contains material designed to give students a working knowledge of labview in a 6 hour timeframe. The contents are: Instructor Notes.doc – this document. la...
上传时间： 2013-10-13
上传用户：zjwangyichao
资源简介：THIS SOURCE CODE IS PROVIDED AS IS , WITH NO WARRANTIES WHATSOEVER, EXPRESS OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANTABILITY, FITNESS FOR ANY PARTICULAR PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE, RELATING...
上传时间： 2013-12-27
上传用户：fanboynet
资源简介：This C++ code example provides a method for transferring objects or chunks of data from one device to another via the Bluetooth OBEX protocol. These chunks are typically files or other blocks of binary data. This example demonstrates ...
上传时间： 2015-12-02
上传用户：13160677563
