Method and system for actuator control for direct access storage

Details Method and system for actuator control for direct access storage Method and system for actuator control for direct access storage

1992-05-13

1994-02-15

Shoop, Jr., William M.

Electricity: motive power systems

Motor-reversing

Armature or primary circuit control

388815, 388903, 3889072, H02P 122

Patent

active

052870464

ABSTRACT:
A method of operating bridge circuit for control of an inductive load is disclosed. The bridge circuit has a pair of input terminals for connection across a power source and a pair of output terminals for connection across the inductive load. Each arm of the bridge includes a transistor switch connecting an input terminal with an output terminal. Clamp circuits are connected to each pair of input and output terminals, taking inputs therefrom and responding to a transition through a predetermined voltage differential between the terminals for driving the transistor switch connecting the output terminal to the remaining input terminal, thereby limiting the output terminal to a predetermined voltage level.

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