Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2006-10-17
2006-10-17
Nguyen, Matthew V. (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
C323S282000
Reexamination Certificate
active
07122996
ABSTRACT:
A voltage regulator circuit is arranged to provide a regulated output voltage from an unregulated input voltage. Also, the voltage regulator circuit includes a capacitor that is coupled between output and feedback nodes of the voltage regulator circuit. The capacitor may improve transient responses, output noise, and the power supply rejection ratio of the voltage regulator circuit during normal operation. During a start-up of the voltage regulator circuit, the capacitance between the output and feedback nodes is substantially eliminated or substantially reduced in order to reduce the time that it takes for the output voltage to reach a stable voltage level.
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National Semiconductor Corporation, “150mA Linear Voltage Regulator for Digital Applications”, LP3990, Oct. 2004, pp. 1-13.
Darby & Darby PC
Gaffney Matthew M.
National Semiconductor Corporation
Nguyen Matthew V.
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