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參數(shù)資料
| 型號： | M51971FP |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | MOTOR SPEED CONTROL |
| 中文描述： | 電機(jī)轉(zhuǎn)速控制 |
| 文件頁數(shù)： | 9/13頁 |
| 文件大小： | 387K |
| 代理商： | M51971FP |
MOTOR SPEED CONTROL
M51971L/FP
MITSUBISHI <CONTROL / DRIVER IC>
Application Circuit Examples
C
S
: Coupling capacitor for AC amplification
R
S
, R
f
: FG amplifier gain set resistance
R
NF
, C
NF
: Filter for noise removal
R
τ
, C
τ
: Time constant for motor speed setup
C
F1
, C
F2
, R
F
: Phase compensation capacitance and resistance to
stabilize integration and speed control systems
Notes:
1. The signal amplitude of the tacho-generator for set motor
rotating speed must be set to 1 mV
P-P
or more.
2. FG amplifier gain
≈
ω
G
: Angle frequency of tacho-generator signal
3. The C
S
, R
S
, R
NF
and C
NF
values are desirable to be selected as
follows:
(Values omitted)
1+
ω
2G
C
S2
(R
S
+Rf)
2
1+
ω
2G
C
S2
R
S2
C
S
≤
4.7
μ
F
ω
G
2
≥
C
S
R
S
≥ω
G
1
1
R
NF
C
NF
≤ω
G
In the above three examples, the portion over V
f
(0.7V) of the
output waveform at pin
is clipped in the built-in waveform clip
diode.
3
Note: The threshold voltage at pin
to GND is approx. 1.9V.
4
I. When the output impedance of the tacho-
generator is low;
III.When the signal amplitude of the tacho-
generator is large;
II.When the output impedance of the tacho-
generator is high and the signal amplitude is
small;
IV. When the input waveform is pulse shape
V. When turning the motor ON/OFF with control
signals;
7
1
8
9
2
3
4
5
6
10
M
G
7
1
8
9
3
4
5
6
10
M
2
G
R
S
R
f
R
NF
C
NF
R
τ
V
CC
C
S
R
F
C
F2
C
F1
C
τ
M51971L
M51971FP
M : Motor
G : Tacho-generator
R
1
M51971L
M51971FP
R
NF
C
NF
R
τ
C
τ
R
F
C
F2
C
F1
V
CC
7
1
8
9
4
5
6
10
M
R
τ
V
CC
R
F
C
F2
C
F1
C
τ
M51971L
M51971FP
3
2
Input pulse signal
7
8
9
2
3
4
5
6
10
M
7
8
9
5
6
10
M
R
S
R
f
R
NF
C
NF
R
τ
V
CC
C
S
R
F
C
F2
C
F1
C
τ
M51971L
M51971FP
When Q
1
is set to ON
When Q
1
is set to OFF
M51971L
M51971FP
R
τ
C
τ
R
F
C
F2
C
F1
V
CC
1
G
: Stops the motor.
: Controls the motor rotating speed.
Q
1
Control signal
R
1
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|---|---|
| M51971L | MOTOR SPEED CONTROL |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M51971L | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:MOTOR SPEED CONTROL |
| M51977FP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SWITCHING REGULATIR CONTROL |
| M51977P | 制造商:Panasonic Industrial Company 功能描述:IC SUBBING WITH PQVIM51977P |
| M51978FP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SWITCHING REGULATOR CONTROL |
| M51978P | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SWITCHING REGULATOR CONTROL |
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