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參數(shù)資料
| 型號(hào)： | M51971 |
| 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(yè)數(shù)： | 6/13頁(yè) |
| 文件大小： | 387K |
| 代理商： | M51971 |
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MOTOR SPEED CONTROL
M51971L/FP
MITSUBISHI <CONTROL / DRIVER IC>
Upper side : Motor speed (FV conversion waveform of tacho-
generator frequency)
Lower side : Supply voltage
Horizontal axis : 20 ms/div
Time constant of motor
≈
100 ms
Application Characteristics Example
How to determine R
τ
and C
τ
These constants determine the motor rotating speed. If the motor
rotating speed and the number of poles of tacho-generator are
assumed to be N and P, respectively, the following relational
expression is generally established. According to the required
rotating speed, select the constant in such a way that R
τ
can be
put in the range of 10k
– 500k
. When using a high resistance,
take care for leak current that may flow on the surface of the
printed circuit board.
NP
1.20 R
τ
C
τ
≈
1
4
0
4
8
12
16
Supply voltage V
CC
(V)
T
a
= -20
°
C
T
a
= 25
°
C
T
a
= 75
°
C
3
2
1
Output voltage range at pin
voltage characteristics
– Supply
9
O
V
(
9
9
160
80
–400
1
2
3
4
B
B
V
CC
=9V
0
40
120
Buffer amplifier offset voltage –
Voltage characteristics at pin
8
Voltage at pin
V (V)
8
8
10000
7000
5000
1000
Tacho-generator output frequency –
Connection resistance characteristics at pin
Connection resistance R
τ
(k
) at pin
R
τ
(k
)
T
3000
2000
1000
700
500
300
200
10
20 30
50 70 100
200 300 500
C
τ
001
μ
=4700pF
0022
μ
F
0047
μ
F
01
μ
F
1
1
100
90
10
0%
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| M51971FP | MOTOR SPEED CONTROL |
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| M51971FP | 制造商:MITSUBISHI 制造商全稱(chēng):Mitsubishi Electric Semiconductor 功能描述:MOTOR SPEED CONTROL |
| M51971L | 制造商:MITSUBISHI 制造商全稱(chēng):Mitsubishi Electric Semiconductor 功能描述:MOTOR SPEED CONTROL |
| M51977FP | 制造商:MITSUBISHI 制造商全稱(chēng):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(chēng):Mitsubishi Electric Semiconductor 功能描述:SWITCHING REGULATOR CONTROL |
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