universal motor speed control circuit
Tài liệu Mechatronics DC Motor / Tachometer Closed-Loop Speed Control System ppt
Ngày tải lên :
25/01/2014, 13:20
... root-locus domain.
Mechatronics Kevin Craig
DC Motor / Tachometer Closed-Loop Speed Control System 24
Mechatronics
DC Motor / Tachometer Closed-Loop Speed Control
System
1. Introduction
This ... well-behaved speed-
torque characteristics, and adaptability to various types of control methods. DC motors are
classified as either integral-horsepower motors (≥ 1 hp) or fractional-horsepower motors ... power amplifier. Motor speed is measured using
an analog tachometer.
Figure 2. Physical System
Mechatronics Kevin Craig
DC Motor / Tachometer Closed-Loop Speed Control System 5
...
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Power converter control circuits for two mass vibratory conveying system with electromagnetic drive simulations and experimental results IEEE trans
Ngày tải lên :
03/01/2014, 19:16
... with electromagnetic
drive and power converter control circuits for its optimal control
DESPOTOVIC
´
AND STOJILJKOVIC
´
: POWER CONVERTER CONTROL CIRCUITS FOR TWO-MASS VCS 459
Fig. 11. Amplitude ... and transient regimes with varying conveying
mass
is described.
A. Phase Control
Simulation circuit with phase angle control of the EVA coil
is given in Fig. 8. The load mass, which is oscillating, ... power transistor
drive circuit.
Sine half-wave current reference value is obtained by precise
rectification of signal difference from the voltage controlled os-
cillator and controller output. This...
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Tài liệu Speed Control SPC GAS SPRINGS, cushioned pptx
Ngày tải lên :
22/01/2014, 02:20
...
Overview of Gas Springs
2
.
21369
.
2007
.
1
Speed Control
TM
ô
SPC Gas Springs,
cushioned 2486.12.
FIBRO SPC Gas Springs Speed Control
TM
ô are designed to
reduce or eliminate the ... caused by the increased return travel speed
in high speed presses (link drive presses).
SPC Gas Springs feature an integral return travel delay which
reduces the speed of the gas spring to 0.4 m/s ... 2
.
21370
.
2007
.
1
3
Speed Control
TM
ô
SPC Gas Springs,
2486.12. cushioned
subject to alterations
Force in daN at Piston...
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Practical Troubleshooting of Electrical Equipment and Control Circuits pptx
Ngày tải lên :
07/03/2014, 08:20
... Electrical Equipment and Control Circuits
Figure 2.8
Power and control circuit for an inverter drive
Devices, symbols, and circuits 27
A few simple control circuits are shown in ... start/stop control of AC drives 166
6.11 Control wiring for VSDS 169
6.12 Commissioning VSDs 170
7 Troubleshooting control circuits 173
7.1 Basic control circuits 173
7.2 Ladder logic circuits ... single-phase AC motors 78
4.4 DC motors 81
4.5 Motor enclosures 85
4.6 Motor terminal identification and connection diagram 86
4.7 Motor rating and insulation types 88
4.8 Operating a motor for...
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báo cáo hóa học:" Scan speed control for tapping mode SPM" docx
Ngày tải lên :
21/06/2014, 17:20
... the step height equal to
25 nm. At a constant speed of 30 àm/s (a), with a dynamic control (b), and with a
dynamic control and at a variable speed (c).
Figure 2. Comparative line traces for ... K
τ
. As a result, the speed of a closed-loop control system (that is,
without loss of surface) is determined by the time constant
0 0
i
G K
τ
. Feedback speed,
the speed of the actuator, ... dynamic controller on ‘parachuting’ regions. Furthermore,
we propose to use variable scan speed on ‘upward step’ regions, with the speed
determined by the error signal of the closed-loop control. ...
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Motor control sensor feedback circuits
Ngày tải lên :
03/01/2014, 18:55
... stable, reliable and cost-effective
control system.
Further details on motor control circuits and sensors
are provided in several books, including Motor Control
Electronics” (10). In addition, ... role in a motor
control system. These sensors provide information on
the current, position, speed and direction of a rotating
motor. In addition, the sensors improve the reliability of
the motor ... Parekh, Rakesh, “AN889 - VF Control of 3-
Phase Induction Motors using PIC16F7X7
Microcontrollers”, Microchip Technology Inc.,
2003.
10. Valentine, Richard, editor, Motor Control Elec-
tronics Handbook”,...
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Design and Implementation of a Three-Phase Induction Motor Control Scheme
Ngày tải lên :
27/10/2013, 23:15
...
3.1. The basic control format
In essence, we are endeavoring to design a controller that can vary the torque induced in
the rotor of the motor. To do this, the induction motor controller will ... for an induction
motor
An induction motor is an asynchronous AC (alternating current) motor. The least
expensive and most widely used induction motor is the squirrel cage motor. The major ... 6.10. The speed response of the control system where the proportional gain of the speed
controller is increased
As you can see, the transient response is faster as it follows the speed command...
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