Hard disk drive (HDD) electrical over voltage stress (EOS)...

Details Hard disk drive (HDD) electrical over voltage stress (EOS)... Hard disk drive (HDD) electrical over voltage stress (EOS)...

2006-09-12

2006-09-12

Nguyen, Tanh Q. (Department: 2182)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

C361S091200, C361S091500, C361S091600, C361S084000, C361S245000, C361S246000

Reexamination Certificate

active

07106567

ABSTRACT:
The present invention relates to a hard disk drive system having overvoltage protection circuits for various types of overvoltage conditions. For example, the system includes one or more hard disk drive integrated circuit chips residing on a board and a hard disk drive power plug receptacle residing on the board having two different value power supply ports associated therewith. The receptacle is operable to receive a power plug therein, wherein when the power plug is inserted therein in a proper orientation the two different value voltages are properly supplied to the one or more hard disk drive integrated circuit chips, and wherein when the power plug is inserted therein in an improper orientation the two different value voltages are switched with respect to their intended values.

REFERENCES:
patent: 5587685 (1996-12-01), Johansson
patent: 5774315 (1998-06-01), Mussenden
patent: 5815356 (1998-09-01), Rodriguez et al.
patent: 5930096 (1999-07-01), Kim
patent: 6278598 (2001-08-01), Suzuki et al.
patent: 6308233 (2001-10-01), Park
patent: 6771478 (2004-08-01), Ochi

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