Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Amplitude control
Reexamination Certificate
2005-05-24
2005-05-24
Nguyen, Long (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Amplitude control
C327S321000, C327S328000
Reexamination Certificate
active
06897702
ABSTRACT:
Disclosed is a high voltage decoupling capacitor-biasing circuit with no dc current. In one embodiment, the circuit includes a power supply node, a ground node, a common node, a first p-channel FET, a first n-channel FET, and a common node biasing circuit. The first p-channel FET includes a source, gate, and drain, wherein the source and drain of the first p-channel FET are coupled to the power supply node, and wherein the gate of the first p-channel FET is coupled to the common node. The first n-channel FET includes a source, gate, and drain, wherein the source and drain of the first n-channel FET are coupled to the ground node, and wherein the gate of the first n-channel FET is coupled to the common node. The common node biasing circuit is coupled between the power supply and ground nodes. The common node biasing circuit is configured to maintain the common node at a predetermined voltage above ground by charging up or charging down the common node. Further, the common node biasing circuit is configured to transmit only AC current to or from the ground node.
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Gu Louise
Khieu Cong Q.
Tjakra Chaidir
Nguyen Long
Sun Microsystems Inc.
Zagorin O'Brien Graham LLP
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