Electricity: power supply or regulation systems – In shunt with source or load – Using a three or more terminal semiconductive device
Reexamination Certificate
2008-06-24
2008-06-24
Sterrett, Jeffrey L. (Department: 2838)
Electricity: power supply or regulation systems
In shunt with source or load
Using a three or more terminal semiconductive device
C323S275000, C323S901000
Reexamination Certificate
active
07391187
ABSTRACT:
An electrical circuit that provides accurate, regulated output voltage over a wide range of input voltages, while exhibiting each of three desired characteristics: accuracy across different supply/process/temperature; stability and linearity yielding phase/gain margins; and high (good) power supply rejection ratio (PSRR). The circuit comprises an output node having a load current and an amplifier having a first input coupled to a reference voltage and receiving a bias input current that is a pre-established proportionate size of the load current across the output node, such that a change in the load current results in a proportionate change in the bias input current. The electrical circuit represents a voltage regulator that provides accurate, linear output voltage that is a predictable portion of the reference voltage.
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Cockburn Josh G.
Dillon & Yudell LLP
Hansen Stuart
International Business Machines - Corporation
Sterrett Jeffrey L.
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