Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Generating sawtooth or triangular output
Reexamination Certificate
2011-05-24
2011-05-24
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Generating sawtooth or triangular output
C327S132000
Reexamination Certificate
active
07948280
ABSTRACT:
A sawtooth generator adapted to produce a sawtooth voltage, a method of operating the same, and a power converter employing the sawtooth generator and method. In one embodiment, the sawtooth generator includes a current source, coupled to a clock with a clock frequency, configured to produce a reference current proportional to the clock frequency. The sawtooth generator also includes an active network including a switch and a capacitor coupled to the current source and configured to provide a sawtooth voltage with a waveform slope produced across the capacitor substantially proportional to the reference current.
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Dwarakanath Mirmira Ramarao
Wang Jue
Cheng Diana J
Donovan Lincoln
Enpirion, Inc.
Slater & Matsil L.L.P.
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