Current-controlled CMOS ring oscillator circuit
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United States of America Patent
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Jan 22, 2008
Grant Date -
Oct 19, 2006
app pub date -
Apr 13, 2006
filing date -
Apr 14, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A ring oscillator having an odd number of active elements connected in series, where the signal output of one active element is connected to the signal input of the next active element to form a closed ring of active elements. Each active element has a power supply input and a ground connection, a signal input and a signal output, an inverter sub-element having a pair of current mirrors, and a capacitor controlled bias sub-element.
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