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參數(shù)資料
| 型號： | AN8480NSB |
| 廠商： | PANASONIC CORP |
| 元件分類： | 光電元器件 |
| 英文描述： | 3-phase full-wave motor driver IC |
| 中文描述： | CD MOTOR DRIVER, PDSO30 |
| 封裝： | 0.400 INCH, PLASTIC, HSOP-42/28 |
| 文件頁數(shù)： | 5/6頁 |
| 文件大?。?/td> | 65K |
| 代理商： | AN8480NSB |
ICs for Compact Disc/CD-ROM Player
AN8480NSB
5
I
Application Notes (continued)
Phase conditions between Hall input and output current
A
B
C
D
E
F
Phase of Hall pin
H1
+
H3
+
H2
+
H
M
L
H
M
L
M
L
H
L
M
H
L
M
H
M
L
H
ECR
EC
A
B
C
D
E
H1
H2
H2
H1
H3
H3
A3
A3
A2
A1
A2
A1
F
0
0
0
Emit
Output current
Sink
Power consumption calculation method
You can find a rough value of electric power to be consumed in the IC in the following method and the use of EXCEL
(computer soft ware) will enable you to put it on a graph.
Calculating formula:
1. Let an induced voltage generated in each phase as below:
(Reference to a motor center point)
E
A1
=
E
O
×
sin (X) · · · (1)
E
A3
=
E
O
×
sin (X
+
240) · · · (3)
2. Let a current flowing in each phase as below:
I
A1
=
I
O
×
sin (X) · · · (4)
I
A3
=
I
O
×
sin (X
+
240) · · · (6)
3. The voltages generated by a wire-wound resistance of a motor are:
V
R1
=
I
A1
×
R · · · (7)
4. In each phase, add the voltage generated by an induced voltage and that by a wire-wound resistance.
V
A1
'
=
(1)
+
(4)
V
A2
'
=
(2)
+
(5)
5. As the lowest voltage in each phase angle must be 0 V, you can get the voltage to be generated in each phase by
means of subtracting the lowest voltage from the voltage of the remaining two phases.
V
A1
=
V
A1
'
MIN (V
A1
', V
A2
', V
A3
') · · · (10)
V
A2
=
V
A2
'
MIN (V
A1
', V
A2
', V
A3
') · · · (11)
V
A3
=
V
A3
'
MIN (V
A1
', V
A2
', V
A3
') · · · (12)
6. Subtract the supply voltage from each phase's voltage found in item 5 and then multiply it by each phase's current,
so that you can get the power consumption.
E
A2
=
E
O
×
sin (X
+
120) · · · (2)
X: Phase angle
I
A2
=
I
O
×
sin (X
+
120) · · · (5)
V
R2
=
I
A2
×
R · · · (8)
V
R3
=
I
A3
×
R · · · (9)
V
A3
'
=
(3)
+
(6)
3
P
=
Σ
(
12
V
An
) ×
I
An
n
=
1
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AN8480NSB-E1 | 制造商:Panasonic Industrial Company 功能描述:IC |
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