Electrical transmission or interconnection systems – Plural load circuit systems – Control of current or power
Patent
1990-08-29
1992-07-14
Stephan, Steven L.
Electrical transmission or interconnection systems
Plural load circuit systems
Control of current or power
363 72, 363 56, 323272, 323284, H02M 328
Patent
active
051305615
ABSTRACT:
Two pulse-width modulated power supplies are synchronized to operate at 180.degree. of phase shift to reduce the peak amplitude of the instantaneous current drawn from the DC input bus. The circuit includes means for disabling the synchronization upon detection of an undervoltage fault condition on the output of either supply. This feature allows frequency programming techniques to be used to provide foldback current limiting for either supply without affecting the operation of the other supply.
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Elliott Brent A.
Johnson Edward D.
Marusik C. Lee
Alcatel Network Systems, Inc.
Davidson Ben
Kraft Dennis O.
Lutz Bruce C.
Stephan Steven L.
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