...
conduction DTC of BLDC motor drive with six-switch inverter
scheme.
Keywords: Brushlessdc (BLDC) motor, sliding mode
observer, direct torque control (DTC), stator flux control,
fast torque ... and
Indirect Flux Control of BrushlessDCMotor with Non-sinusoidal
Back-EMF,” IEEE, pp. 1373-1378, 2008.
[8] F. Bodin, S. Siala, “New reference frame for brushlessdcmotor
drive,” in Proc. ... Block
Indirect torque control method of BLDC motor
explained in [9] was extended to a direct torque and
indirect flux control technique for six-switch inverter
BLDC motor in [7] which is suitable...
... programming-based control of brushless motors,”
IEEE Trans. Control Syst. Technol., vol. 11, no. 1, pp. 139–146, Jan. 2003.
[19] S. J. Kang and S. K. Sul, “Direct torque control of brushlessdcmotor with
nonideal ... INDIRECT FLUX CONTROL OF BRUSHLESSDCMOTOR 355
TAB L E I
S
WITCHING
T
ABLE FOR
DTC
OF
BLDC M
OTOR
U
SING
T
HREE
-
PHASE
C
ONDUCTION
indirectly kept at its optimum level, while the motorspeed is
less ... the control of a nonsinusoidal brushless dc
motor, ” in Proc. IEEE IECON, Orlando, FL, Nov. 6–10, 1995, vol. 2,
pp. 836–843.
[14] F. Bodin and S. Siala, “New reference frame for brushlessdc motor...
... only the torque is controlled without speed control,
the time range of control system under transient state is
selected short. The motor speeds up to a very large value
if the motor is run longer ... sampling time, dc- link voltage, hysteresis
bandwidth, motor parameters especially the winding
inductance, motor speed, snubber circuit, and the amount
of load torque The best way to control the ... bill.alexander@idealpowerconverters.com
Abstract—This paper presents a direct torque control (DTC)
technique for brushlessdc (BLDC) motors with non-
sinusoidal back-EMF using four-switch inverter in the...
... motor that is fed by square-wave
current and it is often called BrushlessDCMotor
(BLDCM).
The main difference between two kinds of motors from
the control viewpoint resides on current control ...
conventional control system for BLDC motor (Fig. 2). The
motor is fed by a PWM-controlled MOSFET inverter. As we
can see in Figs. 2 and 3, the currents are controlled by 3
current controllers ... current into the control system, just like for the
case of PM Synchronous Motors (sine type machines).
Index Terms BrushlessDC motor, Trapezoidal type machine,
PM synchronous motor, Sine type...
... schematic diagram of a DCmotor is shown in Figure 6.
Figure 6. Schematic Diagram of a DCMotor
Mechatronics Kevin Craig
DC Motor / Tachometer Closed-Loop SpeedControl System 10
• ... root-locus domain.
Mechatronics Kevin Craig
DC Motor / Tachometer Closed-Loop SpeedControl System 24
Mechatronics
DC Motor / Tachometer Closed-Loop SpeedControl
System
1. Introduction
This ... Craig
DC Motor / Tachometer Closed-Loop SpeedControl System 11
The DC motor/ tachometer system has a single input and a single output. The input is the voltage
applied across the two motor...
... CAP-P7
1000
7805
IN
1
OUT
3
G
N
D
2
U4
7805
GND
CAP-P6
10U
CAP4
104
VCC
R6
330R
LED1
LED
T1
TIP42
R5
10R
2
1
3
4
P
O
W
E
R
1
CONN-SIL4
Control 1
Control 2
Hình 4.6 Sơ đồ nguyên lý mạch nguồn 5V
Khối này là mạch điện dùng để ổn áp điện thế ... thay vì nhập xuất dữ liệu.
- Chân 30 : AVCC cấp điện áp so sánh cho bộ ADC.
- Chân 32 : AREF điện áp so sánh tín hiệu vào ADC.
- Chân 33 đến 40 : Cổng vào ra dữ liệu song song A ( PORTA ) ngoài ... tín hiệu số ADC ( analog to digital
converter)
b. Vào ra của vi điều khiển
PORTA ( PA7 … PA0 ) : là các chân số 33 đến 40. Là cổng vào ra song song 8 bít
khi không dùng ở chế độ ADC. Bên trong...
... E
2
max
Allen and Holberg - CMOS Analog CircuitDesign Page II.0-3
OBJECTIVE
• Provide an understanding of CMOS technology sufficient to enhance
circuit design.
• Characterize passive components ... Holberg - CMOS Analog CircuitDesign II.5-6
IMPROVED LAYOUT METHODS FOR CAPACITORS
Corner clipping:
Clip
corners
Street-effect compensation:
Allen and Holberg - CMOS Analog CircuitDesign Page II.1-6
Etching
Etching ... (enhancement)
Allen and Holberg - CMOS Analog CircuitDesign Page I.2-1
I.1 - INTRODUCTION
GLOBAL OBJECTIVES
• Teach the analysis, modeling, simulation, and design of analog circuits
implemented in CMOS technology.
•...
... cổng.
VD3: Sử dụng thanh ghi CC 80C537, có thể đạt 5kHz.
DC Motor - PWM illustration
By Lê Anh Tuấn 12/2002
DC Motor - Brushless DC
Động cơ một chiều không chổi than không được cấp liên tục ... 12/2002
DC Motor - Practical1
VI MẠCH 555/556
Tạo ra các xung đều nhau, tần số
CRR
f
BA
)(
49.1
+
=
Tạo ra xung có bề rộng ΔT khi có
xung vào chân trigger
ΔT=1.1RC
By Lê Anh Tuấn 12/2002
DC Motor ... 12/2002
DC Motor - Practical2
PWM SỬ DỤNG IC 555
Mạch dùng điều khiển động cơ 6V, 0.5 A với đầu vào Vin=9V
U1: tạo nhịp, chính là tần số làm việc
U2: Chu kỳ làm việc
By Lê Anh Tuấn 12/2002
DC Motor...