參數資料
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: 17/28頁
文件大小: 120K
代理商: HA13557AFH
HA13557AFH
17
=
1
R6
R5
1 + s C5 R// – C3 (R// + R3)
+ C4 (R// + R3 + R4)
R6
R5
+ s
2
C5 C4 R// (R3 + R4) – C5 C3 R// R3
+ C3 C4 R4 (R// + R3)
+ s
3
C3 C4 C5 R// R3 R4
H
FLT
(s)
(17)
where,
R// = R7 R8
R7 + R8
(18)
If you choose the R// << R3, then equation (17) can be simplified as following equation.
1
s
ω
n
ω
O
ω
n
H
FLT
(s) =
1
1 +2
ζ
s
1 +
+
s
2
(19)
where,
ω
O
=
1
C5 R//
(20)
ω
n =
1
C3 C4 R3 R4
(21)
ζ
= C4 (R3 + R4) – C3 R3
2 C3 C4 R3 R4
R6
R5
(22)
10.The relationship between the output current Ivcm and the input voltage (Vctl – V
REF1
) on VCM
driver is as follows.
Ivcm(s) = Vctl – V
REF1
Kvcm 1
Rs
Hvcm(s)
(23)
where, Vctl:
Input control voltage for VCM driver on pin 40 [V]
Reference voltage on pin 37 [V] (= 4.6)
DC gain of VCM driver
(= 1.74 for High gain mode)
(= 0.44 for Low gain mode)
Hvcm(s): Transfer function of VCM driver as shown following equation
1
s
ω
VCM
V
REF1
:
Kvcm:
Hvcm(s) =
1 + 2
ζ
VCM
s
ω
VCM
+
2
(24)
where,
ω
VCM
=
ω
P
Rs
Lm
(25)
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相關代理商/技術參數
參數描述
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
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HA13563V 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Three-Phase Brushless Motor Driver