Electrical computers and digital processing systems: support – Computer power control
Reexamination Certificate
2005-12-20
2005-12-20
Elamin, A. (Department: 2116)
Electrical computers and digital processing systems: support
Computer power control
C323S265000, C323S282000
Reexamination Certificate
active
06978386
ABSTRACT:
A method for reducing thermal dissipation in a single PLC package includes implementing a pulse width modulated current regulator including a field effect transistor (FET) switch, and utilizing a turn on delay of the FET to provide a wide operating range of current. The FET has an inherent turn-on time delay that can be exploited such that, as the duty cycle is reduced, the FET's drain to source impedance dominates an inductive path of an output filter and increases output filtering.
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INPI Bureau Casalonga Et Josse, Search Report, Dec. 9, 2003, 3 pgs.
Gareis Ronald E.
Gates Donald A.
Thurnau Edwin M.
Armstrong Teasdale LLP
Elamin A.
GE Fanuc Automation North America Inc.
Yanchus, III Paul
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