Electric igniter actuator with network voltage clocking to pass only a portion of the wave trains to the igniter
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United States of America Patent
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May 16, 1995
Grant Date -
N/A
app pub date -
Feb 25, 1994
filing date -
Mar 5, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An automatic furnace comprises an actuator for an electric igniter. The electric igniter has a distinctly lower standard voltage, e.g., 120 V, than the network voltage, e.g., 230 V and is operated by the network voltage. The network voltage is fed into the power regulator before the igniter. The power regulator clocks the network voltage with an adjustable keying ratio, so that only part of the full wave trains of the network voltage becomes active at the electric igniter. In an advantageous embodiment, the keying ratio is variegated by the actual level of the network voltage.
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