OSCILLATING DEVICE
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United States of America Patent
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Issued Date -
Jun 25, 2009
app pub date -
Aug 17, 2008
filing date -
Dec 19, 2007
priority date (Note) -
Abandoned
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Abstract
The present invention provides an oscillating device. The oscillating device includes: a voltage regulating module, a current generating module, and an oscillating module. The voltage regulating module is utilized for generating a control voltage at an output terminal, and the voltage regulating module includes: a first operational amplifier, a first switch element, and a first voltage dividing circuit. The oscillating module includes: a plurality of switch modules connected in series, a current mirror module, and a plurality of capacitor modules. In the oscillating device of the present invention, a frequency of an oscillating signal outputted by the oscillating module will not be affected by voltage offset of an operating voltage, environment temperature variations, or semiconductor process variations.
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