System for powering an igniter to a level proven to ignite gas
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United States of America Patent
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-
Feb 18, 2003
Grant Date -
N/A
app pub date -
Oct 4, 2001
filing date -
Oct 4, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A microprocessor-controlled triac switching circuit for an igniter, having line voltage and igniter current input signals to a microprocessor for determining power to the igniter. Upon determining the line voltage, the microprocessor selects from a look-up table a corresponding triac-switching sequence intended to drive the igniter to a power level proven to ignite gas. The igniter current resulting from the switching sequence is fed to the microprocessor, which determines the actual power and an offset value. The offset enables adjustment by shifting sequences, to achieve the pose level at which the igniter is proven to ignite gas.
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