Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2011-04-19
2011-04-19
Laxton, Gary L (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
C323S274000, C361S018000, C365S226000
Reexamination Certificate
active
07928710
ABSTRACT:
Devices, reference voltage generators, systems and methods may include an embodiment of a voltage regulator output transistor using a thin gate insulator to provide a low output impedance despite having a semiconductor channel width that is relatively small. The output transistor is protected from damage by a clamping circuit provided to limit the gate-to-source voltage of the transistor such that damage to the output transistor should be reduced or prevented. One such clamping circuit includes a clamp transistor that receives a reference voltage at its gate. The magnitude of the reference voltage limits to voltage to which the gate of the transistor can be driven. A voltage reference circuit provides the reference voltage so that it compensates for process and temperature variations of the output transistor.
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Dorsey & Whitney LLP
Laxton Gary L
Micro)n Technology, Inc.
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