Telephonic communications – Subscriber line or transmission line interface
Reexamination Certificate
2006-07-11
2006-07-11
Harold, Jefferey F. (Department: 2646)
Telephonic communications
Subscriber line or transmission line interface
C379S413000
Reexamination Certificate
active
07076054
ABSTRACT:
A regulated power supply interface has a current feedback and voltage level shift circuit that monitors power supply output (load) current and controllably diverts current to a current reference node. A differential amplifier-based, voltage feedback and voltage level shift circuit monitors the load voltage and controllably diverts output current to the current reference node. A current mode setpoint circuit has multiple voltage dropping current paths, through one or more of which a summation of the diverted load currents are programmably directed, to generate a control voltage for controlling the operation of a pulse width modulator unit of the regulated power supply.
REFERENCES:
patent: 2002/0126833 (2002-09-01), Youngblood
Bahl Erik Stefan
McGary John S.
Smith Scott L.
Adtran Inc.
Allen Dyer Doppelt Milbrath & Gilchrist, P.A.
Harold Jefferey F.
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