Electric power conversion systems – Current conversion – Including automatic or integral protection means
Reexamination Certificate
2011-06-14
2011-06-14
Behm, Harry (Department: 2838)
Electric power conversion systems
Current conversion
Including automatic or integral protection means
C361S092000, C361S097000
Reexamination Certificate
active
07961485
ABSTRACT:
In one embodiment, a PWM controller is configured to inhibit forming a drive signal responsively to an overload sense signal having a value that is no greater than a first value for a first time interval and to form a first duration of the first time interval responsively to the overload sense signal.
REFERENCES:
patent: 4368500 (1983-01-01), Conroy et al.
patent: 5073724 (1991-12-01), Fox
patent: 7116564 (2006-10-01), Takahashi
patent: 2006/0209481 (2006-09-01), Kim et al.
Data Sheet, “NCP1271 Mode Standby PWM Controller with Adjustable Skip Level and External Latch”, Copyright Jun. 2007—Rev. 4, Semiconductor Components Industries, LLC., 19 pages.
Data Sheet, 'NCP1351 Variable Off Time PWM Controller, Copyright June, 207—Rev. 2, Semiconductor Components Industries, LLC, 25 pages.
Behm Harry
Hightower Robert F.
Semiconductor Components Industries LLC
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