MSK4370U Ver la hoja de datos (PDF) - M.S. Kennedy Corporation
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MSK4370U Datasheet PDF : 8 Pages
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APPLICATION NOTES CONTINUED
COMMUTATION TRUTH TABLE
HALL SENSOR PHASING
120°
60°
HALL HALL HALL HALL HALL HALL
A
B
C
A
B
C
1
0
0
1
0
0
1
1
0
1
1
0
0
1
0
1
1
1
0
1
1
0
1
1
0
0
1
0
0
1
1
0
1
0
0
0
1
1
1
1
0
1
0
0
0
0
1
0
X
X
X
X
X
X
ICOMMAND = POS.
AØ BØ CØ
H
-
L
-
H
L
L
H
-
L
-
H
-
L
H
H
L
-
-
-
-
-
-
-
L
L
L
ICOMMAND = NEG.
AØ BØ CØ
BRAKE
L
-
H
0
-
L
H
0
H
L
-
0
H
-
L
0
-
H
L
0
L
H
-
0
-
-
-
0
-
-
-
0
L
L
L
1
1 = High Level
H = SOURCE
NOTE:
0 = Low Level
L = SINK
X = Don't Care
- = OPEN
Because of the true 4 quadrant method of output switching,
the output switches will PWM between the ICOMMAND POSITIVE
and ICOMMAND NEGATIVE states, with the average percentage
based on ICOMMAND being a positive voltage and a negative
voltage. With a zero voltage ICOMMAND, the output switches will
modulate with exactly a 50% duty cycle between the
ICOMMAND POSITIVE and ICOMMAND NEGATIVE states.
CURRENT (A)
2.0
4.0
6.0
8.0
10.0
RESISTOR (KΩ)
0.56
1.37
2.61
4.77
9.48
4
8548-24 Rev. L 1/15
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