Low supply voltage relaxation oscillator having current mirror transistors supply for capacitors
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United States of America Patent
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Mar 26, 2002
Grant Date -
N/A
app pub date -
Apr 28, 2000
filing date -
Apr 30, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Presented is a low supply voltage oscillator circuit having at least one capacitor to be controlled, connected between first and second voltage references, and a circuit for charging and discharging the capacitor to be controlled. The oscillator circuit also includes at least first and second stages having symmetrical structures in a mirror-image configuration and being connected between the first voltage reference and the second voltage reference and connected together through a memory element. The oscillator circuit also includes respective primary switches for alternately charging the capacitors in a controlled fashion.
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