METHOD AND CIRCUIT FOR SOFT STARTING A MIXER
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United States of America
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Issued Date -
Jan 6, 2022
app pub date -
Jul 1, 2020
filing date -
Jul 1, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
A soft start circuit for a mixer is provided that includes an input for receiving an analog voltage representing a raw target speed; a current mirror for causing a speed target to change at a constant rate when the raw target speed represents a change from a current speed; and a comparator for receiving and comparing the raw target speed and an output from the current mirror and restricting the output from exceeding the raw target speed in order to restrict a soft start to only impede the speed target change when the raw target speed is increasing while not impeding the speed target change when the raw target speed is decreasing. The output of the soft start circuit is an analog representation of a soft start modified desired target speed.
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