Frequency stabilizer circuit for window covering control chip clock
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United States of America Patent
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-
Aug 15, 2006
Grant Date -
Apr 27, 2006
app pub date -
Oct 26, 2004
filing date -
Oct 26, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
A logic chip that controls the motor of a motorized window covering or other object includes a clock. A frequency stabilizer circuit is provided to receive input voltage and to output to the clock a current that is a function of the voltage and temperature over a range of input voltage values and over a range of ambient temperature values so that the frequency output by the oscillator is constant.
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