Motor drive circuit for a disk drive apparatus

Details Motor drive circuit for a disk drive apparatus Motor drive circuit for a disk drive apparatus

2005-02-22

2005-02-22

Dinh, Tan (Department: 2653)

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

C369S059170, C326S062000, C326S068000, C257S391000, C327S037000, C327S058000

Reexamination Certificate

active

06859423

ABSTRACT:
When a circuit that is likely to cause noise is enabled, a control circuit turns on a switch so that an inverter will be formed by one P-channel MOSFET and two parallel-connected N-channel MOSFETs. This helps enhance the current capacity of the inverter on its N-channel MOSFET side, and thereby lower the threshold voltage of the inverter.

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patent: 4897778 (1990-01-01), Miyamoto et al.
patent: 4967291 (1990-10-01), Touchton et al.
patent: 5246479 (1993-09-01), Gami et al.
patent: 5572099 (1996-11-01), Carobolante
patent: 5630008 (1997-05-01), Okuyama et al.
patent: 6011375 (2000-01-01), Korbel et al.

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