Electronic gas cooktop control with simmer system and method thereof
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United States of America Patent
Stats
-
Aug 14, 2007
Grant Date -
Apr 18, 2002
app pub date -
Jun 18, 2001
filing date -
Oct 18, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
An electronically activated gas cooktop control system, responsive to a touch-sensitive user interface, and capable of providing a predetermined range of cooking and simmer levels of BTU output, has two complementary heating modes of operation A first heating mode of operation is provided to produce a wide selection of simmer levels of BTU output, by electronically sequencing a solenoid-operated modulating gas valve 'on' and 'off', at a predetermined level of flame. A second cooking mode of operation is provided by electronically modulating the level of flame, through use of a pulse-width-modulation (PWM) output signal to produce a wide selection of cooking levels of BTU output. An igniter system capable of insuring proper ignition of gas without generating harmful electromagnetic interference is also provided.
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