Drive assembly for a covering of an architectural opening
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United States of America Patent
Stats
-
Aug 24, 2004
Grant Date -
Oct 31, 2002
app pub date -
Jan 30, 2002
filing date -
Jan 30, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electrically-operated architectural covering that can be powered by a low current or voltage source includes a motor, an accumulator connected to the motor, a power source, and an electrical circuit connecting the power source to the accumulator. The electrical circuit includes a step-up converter, which preferably includes an input terminal connected to the power source; an output terminal with a supply voltage connected to the accumulator; an inductive element; a first switch having a gate electrode for opening and closing of the switch when a control voltage of a first level is applied to the gate; and an oscillator.
First Claim
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International Classification(s)
Cited Art Landscape
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