Electricity: motive power systems – Motor-reversing – Armature or primary circuit control
Patent
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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Carpenter Gary D.
Jansen Robert E.
Plutowski Eugene F.
Stephenson John J.
Dillon Andrew J.
International Business Machines - Corporation
Martin David
O'Malley Paul W.
Shoop Jr. William M.
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