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參數(shù)資料
| 型號(hào)： | ML4423 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | 1, 2, or 3-Phase Variable Speed AC Motor Controller(一、二或三相可變速交流電機(jī)控制器) |
| 中文描述： | 1，2或3相交流電機(jī)調(diào)速控制器（一，二或三相可變速交流電機(jī)控制器） |
| 文件頁(yè)數(shù)： | 1/10頁(yè) |
| 文件大?。?/td> | 235K |
| 代理商： | ML4423 |
July 2000
ML4423
*
1, 2, or 3-Phase Variable Speed AC Motor Controller
BLOCK DIAGRAM
GENERAL DESCRIPTION
The ML4423 provides the PWM sinewave drive signals
necessary for controlling three phase AC induction motors as
well as single and two phase split capacitor AC induction
motors.
A constant voltage/frequency ratio can be maintained
over a frequency range of greater than 10:1, providing
15Hz to 150Hz control. The output variable frequency AC
voltages are sensed and fed back to the controller to track the
sinewave frequency and amplitude set at the speed control
input. Direction, on two and three phase motors, is controlled
by changing the relative phase difference between the motor
windings: 90
°
for two phase motors and 120
°
and 240
°
for three
phase motors.
To protect the motor, power devices, high voltage drivers
and control circuitry, the ML4423 includes fixed period,
pulse by pulse variable duty cycle current limit, deadtime
circuitry, and undervoltage lockout. The ML4423 has
selectable output voltage swing of 5V or 12V for
interfacing to different high side drivers and power devices.
FEATURES
I
Drives single, two, and three phase AC motors
I
Greater than 10:1 variable speed control range
I
Constant V/F ratio with programmable end points
I
Reverse capability for two and three phase motors
I
Low distortion PWM sinewave drive
I
Eliminates run capacitors in PSC motors
I
Coast function for quick power disable
I
Low cost interface for various gate drivers
I
PWM current limit, undervoltage lockout, and
programmable deadtime
I
12V
±
20% operation with onboard 8V reference
(* Indicates Part Is End Of Life As Of July 1, 2000)
VSPEED
5
CO
12
FB A
1
RSPEED
6
VMIN
4
VDD
GND
RREF
REFERENCE
VREF
26
CT
17
8
7
HA
HB
HC
LA
LB
GATING
LOGIC
&
OUTPUT
DRIVERS
PWM
SINE
WAVE
CONTROL
PWM
OSCILLATOR
SINE A
GENERATOR
SINE C
GENERATOR
SPEED
CONTROL
SINE B
GENERATOR
UVLO
LC
20
ISENSE
16
19
21
23
22
24
5V/12 SELECT
25
RDT
9
COAST
14
13
SINE A-C
27
SINE B-C
28
3PH
/2PH
18
F/
R
15
+
–
COMP
0.5V
+
–
+
–
FB B
3
FB C
2
+
–
+
–
REV. 1.0 10/10/2000
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ML4425 | Sensorless BLDC Motor Controller |
| ML4425CP | Sensorless BLDC Motor Controller |
| ML4425CS | Sensorless BLDC Motor Controller |
| ML4425IP | Sensorless BLDC Motor Controller |
| ML4425IS | Sensorless BLDC Motor Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ML4423CP | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:1, 2, or 3-Phase Variable Speed AC Motor Controller |
| ML4423CS | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:1, 2, or 3-Phase Variable Speed AC Motor Controller |
| ML4423IP | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:1, 2, or 3-Phase Variable Speed AC Motor Controller |
| ML4423IS | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:1, 2, or 3-Phase Variable Speed AC Motor Controller |
| ML4425 | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:Sensorless BLDC Motor Controller |
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