Dual mode actuator for disk drive useful with a portable compute

Details Dual mode actuator for disk drive useful with a portable compute Dual mode actuator for disk drive useful with a portable compute

1989-07-25

1991-02-05

Psitos, Aristotelis M.

Boots, shoes, and leggings

307 29, 360 69, 360137, G06F 100

Patent

active

049911295

ABSTRACT:
A portable computer having an associated disk drive includes a voltage multiplier coupled between a microprocessor and a head positioning actuator that operates in two modes. In a moderate performance mode, the dual mode actuator operates with the power supplied by a storage battery or by a commercial power source with the voltage multiplier turned off. In a high performance mode, the voltage multiplier under control of the microprocessor boosts the voltage supplied to the actuator so that more power is made available for fast head positioning and job execution with an improvement in computer performance.

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