M63022FP 데이터 시트보기 (PDF) - MITSUBISHI ELECTRIC

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M63022FP

SPINDLE MOTOR AND 5CH ACTUATOR DRIVER

MITSUBISHI ELECTRIC  

MITSUBISHI SEMICONDUCTOR (LSI)

M63022FP

SPINDLE MOTOR AND 5CH ACTUATOR DRIVER

q Focus/tracking channel

The focus and tracking channel is the voltage control drive using

BTL .

The focus and tracking is the same composition.

The relationship between the differential voltage between FOIN

and REF and the output voltage is shown in below Figure.

The voltage gain [Gvo] is 5.0 [V/V].

FOIN

R

REF

R

5VCC

R

R

6R

FO-

R

6R

Coil

R

FO+

Output

FO-

voltage [V]

FO+

5VCC

2

Coil

+

Coil

-

Vo

FOIN- REF (V)

Gvo = 12 [v/v]

Vo=[FO+]-[FO-]

=12 X (FOIN-REF)

FO+

FO-

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