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.
标签： motors Servomotors servomotors available
上传时间： 2014-08-10
上传用户：源码3
infra pen controller, cmos sensor control and sdram control
标签： control controller sensor infra
上传时间： 2014-11-30
上传用户：小码农lz
low frequency therapy system control VHDL code
标签： frequency control therapy system
上传时间： 2017-05-10
上传用户：songyue1991
uart VHDL code : include tx,rx,parity bit control
标签： include control parity uart
上传时间： 2017-05-10
上传用户：开怀常笑
这是在python里相对于c语言中的结构体的函数构建。class的用法
上传时间： 2013-11-26
上传用户：pompey
astprinter.class of a simple compiler
标签： astprinter compiler simple class
上传时间： 2014-01-21
上传用户：Pzj
class to work with UART port on ATmega128/ATmega2560
上传时间： 2017-05-11
上传用户：baitouyu
example stepmotor control
上传时间： 2014-12-06
上传用户：a6697238
PID CONTROLLER FOR MOTOR SPEED CONTROL
标签： CONTROLLER CONTROL MOTOR SPEED
上传时间： 2014-01-03
上传用户：gdgzhym
I/O control example program (AT commands) for xt-65 cinterion modem, for eclipse IDE
标签： cinterion for commands control
上传时间： 2013-12-23
上传用户：zhyiroy
