Oscillators – Ring oscillators
Patent
1997-07-28
1999-04-06
Mis, David
Oscillators
Ring oscillators
331175, 331177R, 326 34, 327543, H03B 504, H03B 524, H03L 100, H03K 3011
Patent
active
058924094
ABSTRACT:
A CMOS compensation circuit receives compensation signals and provides a proportional compensation signal to an application circuit. The compensation circuit is implemented having a load for receiving at least one compensation signal. A device mirroring the load provides the application circuit with a compensation signal proportional to the received compensation signals. In a preferred embodiment, the compensation circuit provides a current controlled oscillator a compensation current to modify the bias of the oscillator. In a preferred embodiment, the compensation current is supplied by a fabrication variation monitor. The fabrication variation monitor supplies a signal to compensate for variations in the fabrication process, such as threshold voltage and effective length.
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Carlson Alan L.
Dillon Andrew J.
International Business Machines - Corporation
Mis David
Salys Casimer K.
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