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參數(shù)資料
| 型號： | HA13557AFH |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | LJT 37C 37#22D SKT WALL RECP |
| 中文描述： | 組合（主軸 |
| 文件頁數(shù)： | 18/28頁 |
| 文件大小： | 120K |
| 代理商： | HA13557AFH |
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HA13557AFH
18
1
2
ζ
VCM
=
1 +
R
L
Rs
1
ω
P
Rs
Lm
(26)
where,
ω
p: Bandwidth of internal power amplifiers for VCM driver [rad/s]
(= 3
π
10
6
)
Lm: Inductance of the VCM coil [H]
R
L
:
Resistance of the VCM coil [
]
and from above equations the -3 dB bandwidth f
VCMC
of VCM driver is as following equation.
ω
VCM
2
π
f
VCMC
=
1 – 2
ζ
VCM
2
+
2
ζ
VCM
2
– 1
2
+ 1
(27)
11.The frequency response of VCM driver maybe have a gain peaking because of the resonation of
the motor coil impedance. If you want to tune up for this characteristics, you can reduce the
peaking by additional snubber circuit R
X
and C
X
as follows.
BTL Driver
R
X
C
X
1/2 V
PS
–
+
–
+
R3
R3
Coil
N
RS
P
R
S
Figure 1 VCM Driver Block Diagram
20
10
0
–10
–20
100
1k
10k
100k
Frequency (Hz)
I
O
(dB)
Normal
C
X
= 0.22
μ
F
R
X
= 560
(for example) R
L
= 14.7
, R
S
= 1
, L = 1.7 mH, Gain = L
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HA13558AFH | CD-ROM Combo Driver(CD-ROM COMBO 驅(qū)動器) |
| HA13561 | Combo (Spindle & VCM) Driver |
| HA13561F | Combo (Spindle & VCM) Driver |
| HA13563 | Three-Phase Brushless Motor Driver |
| HA13563V | Three-Phase Brushless Motor Driver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HA13558AFH | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Servo/Spindle Motor Controller/Driver |
| HA13561 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Combo (Spindle & VCM) Driver |
| HA13561F | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Combo (Spindle & VCM) Driver |
| HA13563 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Three-Phase Brushless Motor Driver |
| HA13563V | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Three-Phase Brushless Motor Driver |
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