stepper motor drive circuit design
Stepper motor overview
Ngày tải lên :
25/10/2012, 15:38
... performance
of the motor. To reduce the effects of inductance, most types of driver circuits are designed to supply a voltage
greater than the motor s rated voltage.
TYPES OF STEP MOTOR DRIVERS
For ... www.stepcontrol.com 1
Stepper Motor System Basics (Rev. 2/2010)
Table of Contents
1.
STEPPER MOTOR SYSTEMS OVERVIEW 2
2.
STEPPING MOTORS 3
TYPES OF STEPPER MOTORS 3
VARIABLE RELUCTANCE ...
including; Stepper Motor, Linear Step Motor, DC Brush, Brushless, Servo, Brushless Servo and more. This
document will concentrate on Step Motor technology.
In Theory, a Stepper motor is a...
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- 2
Fundamentals of RF Circuit Design With Low Noise Oscillators
Ngày tải lên :
08/04/2013, 10:50
... amplifier design and includes
Load Pull measurement and design techniques and a more analytic design example
of a broadband, efficient amplifier operating from 130 to 180 MHz. The design
example ... RF Circuit Design with Low Noise Oscillators. Jeremy Everard
Copyright © 2001 John Wiley & Sons Ltd
ISBNs: 0-471-49793-2 (Hardback); 0-470-84175-3 (Electronic)
14 Fundamentals of RF Circuit ...
pF2.0
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cb
C
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C
(1.82)
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e
L
T
CC
r
R
C
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22 Fundamentals of RF Circuit Design
then:
[]
()
f
E
dB
3
350 10 50
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=
++
−+
π
.
= 133MHz (1.71)
The low...
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- 698
- 6
Allen and Holberg - CMOS Analog Circuit Design
Ngày tải lên :
18/10/2013, 12:15
... E
2
max
Allen and Holberg - CMOS Analog Circuit Design Page II.0-3
OBJECTIVE
ã Provide an understanding of CMOS technology sufficient to enhance
circuit design.
ã Characterize passive components ... Holberg - CMOS Analog Circuit Design II.5-6
IMPROVED LAYOUT METHODS FOR CAPACITORS
Corner clipping:
Clip
corners
Street-effect compensation:
Allen and Holberg - CMOS Analog Circuit Design Page II.1-6
Etching
Etching ... Allen and Holberg - CMOS Analog Circuit Design Page I.2-1
I.1 - INTRODUCTION
GLOBAL OBJECTIVES
ã Teach the analysis, modeling, simulation, and design of analog circuits
implemented in CMOS technology.
ã...
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Tài liệu PRINCIPLES OF ASYNCHRONOUS CIRCUIT DESIGN – A Systems Perspective pdf
Ngày tải lên :
09/12/2013, 21:15
... components. If this equivalent circuit model is speed-independent,
then the circuit is delay-insensitive.
Unfortunately the class of delay-insensitive circuits is rather small. Only
circuits composed of ... xvi
PRINCIPLES OF ASYNCHRONOUS CIRCUIT DESIGN
The following list describes the objectives of the 20 projects. It is sorted by
decreasing funding budget.
CRAFT CMOS Radio Frequency Circuit Design for Wireless ... DQIF, through physical design and characterisation of
the core blocks
Low-power RF design techniques in standard CMOS digital processes
RF design tools and framework; PAPRICA Design Kit
Demonstration...
- 354
- 650
- 1
Tài liệu Circuit design with VHDL ppt
Ngày tải lên :
12/12/2013, 11:16
... 159
8.1 Introduction 159
8.2 Design Style #1 160
8.3 Design Style #2 (Stored Output) 168
viii Contents
TLFeBOOK
circuit, and of an ARCHITECTURE, which describes how the circuit should func-
tion. ... expected.
1.5 Design Examples
As mentioned in the preface, the book is indeed a design- oriented approach to the
task of teaching VHDL. The integration between VHDL and Digital Design is
achieved ... 1
TLFeBOOK
I CIRCUIT DESIGN
TLFeBOOK
ter, while sequential code is treated in another; data types are discussed in one chap-
ter, while operators and attributes are in another; what is at the circuit...
- 376
- 504
- 3
Tài liệu A neural-network-based space-vector PWM controller for a three-level voltage-fed inverter induction motor drive doc
Ngày tải lên :
22/12/2013, 08:16
... (1960–1971). He is specialized in power electronics and motor
drives, specifically including power converters, ac drives, microcomputer/DSP
control, EV/HV drives, and artificial intelligence applications ... induction motor drive, ” IEEE Trans. Ind. Applicat., vol. 36, pp.
1628–1636, Nov./Dec. 2000.
[3] J. O. P. Pinto, B. K. Bose, and L. E. B. da Silva, “A stator flux oriented
vector-controlledinduction motor ... Electronics and
AC Drives (Upper Saddle River, NJ: Prentice-Hall, 2002), Power Electronics
and AC Drives (Englewood Cliffs, NJ: Prentice-Hall, 1986), Power Electronics
and Variable Frequency Drives (New...
- 10
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- 0
Ebook - Radio frequency integrated circuit design
Ngày tải lên :
09/01/2014, 02:17
... simple circuits to
minimize circuit area, but also low power dissipation to maximize battery life.
1.2 Lower Frequency Analog Design and Microwave Design
Versus Radio Frequency Integrated Circuit Design
RFIC ... advantages in that circuits can drive or be driven by
an impedance that best suits them. On the other hand, if circuits are connected
using transmission lines, then these circuits are usually designed ... Frequency Integrated Circuit Design
- 431
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- 0
Linear circuit design handbook 2nd edition
Ngày tải lên :
09/01/2014, 16:59
... and circuits can even be produced by our foundry partners. All of the
trim circuitry tend to scale with the process features so that as the process and the amplifi er circuit shrink,
the trim circuit ... saturation is generally slow, except for certain “ clamped ” op amps
specifi cally designed for fast overdrive recovery. Overdriven amplifi ers may therefore be unexpectedly slow.
Because of this reduction ... This is commonly referred to as “ infi nite ” short circuit protection, since the amplifi er can
drive that value of current into the short circuit indefi nitely. The output current that can be...
- 954
- 689
- 0
Tài liệu Rf Mems Circuit Design For Wireless Communications pptx
Ngày tải lên :
19/01/2014, 20:20
...
+ììì
44 4
24 4
1
3
3
p
(2.29)
28 RF MEMS Circuit Design for Wireless Communications
2
Elements of RF Circuit Design
2.1 Introduction
The design of RF MEMS circuits for wireless applications is ... cm
497.
(2.42)
30 RF MEMS Circuit Design for Wireless Communications
Wireless SystemsA Circuits Perspective 11
T/R
SW
BPF
RX MXR
LNA
SAW
BPF
Driver
amp
Power
amp
Demod
FREF
RC
RSSI
PLL
Loop
filter
Modulation
Figure ... thin-film microstrip lines and equivalent
distributed circuit model.
RF MEMS Circuit Design for Wireless
Communications
Wireless SystemsA Circuits Perspective 13
Transceiver
and Baseband
Phase...
- 280
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Tài liệu Stepper Motor Controllers ppt
Ngày tải lên :
20/01/2014, 02:20
... throughout.
5/11
L297
APPLICATION INFORMATION
TWO PHASE BIPOLAR STEPPER MOTOR CONTROL CIRCUIT
This circuit drives bipolar stepper motors with winding currents up to 2A. The diodes are fast 2A types.
Figure ... L297 Stepper Motor Controller IC generates
four phase drive signals for two phase bipolar and
four phase unipolar step motors in microcomputer-
controlled applications. The motor can be driven ... Motor phase B drive signal for power stage.
7 C Motor phase C drive signal for power stage.
8
INH2 Active low inhibit control for drive stages of C and D phases.
Same functions as INH1.
9 D Motor...
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Tài liệu Analog Integrated Circuit Design P1 docx
Ngày tải lên :
26/01/2014, 01:20
... connected to the most negativc voltage in
a
microcircuit.
Ln
analog circuits,
this
might be the negative power supply. but in digital
circuits
it
is
normally ground or
0
V.
This
connection ...
Integrated -Circuit
Devices
and
Modelling
In this chapter, the operation and modelling of semiconductor devices are described.
Although it is possible to do simple integrated -circuit design with ... VOLTAGE REFERENCES,
AND
TRANSLINEAR CIRCUITS
Performance
of
Sample-and-Hold Circuits
334
MOS Sample-and-Hold Basics
336
Examples of CMOS
S/H
Circuits
343
Bipolar and BiCMOS Sample...
- 30
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- 0
Tài liệu Analog Integrated Circuit Design P2 docx
Ngày tải lên :
26/01/2014, 01:20
... gate-source voltage.
In
most circuit applications, noncutoff
MOS-
FET
transistors are operated in strong inversion, with
Veff
>
100
mV
(many
prudent
circuit designers use a
minimum ... early electronic years, the majority
of
microcircuits were realized using bipolar-
junction transistors
(BJTs). However, in
the
late 1970s, microcircuits that used MOS
1.3
Advanced MOS Modelling ...
MOS
MODEWNG
In this section,
we
look at three advanced modelling concepts that a microcircuit designer
is
likely to encounter-short-channel effects, subthreshold operation, and leakage...
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