Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2007-08-01
2009-08-04
Nguyen, Matthew V (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
C323S273000
Reexamination Certificate
active
07570035
ABSTRACT:
A voltage regulator circuit and method are provided for regulating a voltage accurately in response to rapid variations in the regulator's load. The voltage regulator utilizes a hybrid loop; an embodiment of such utilization is exemplified by circuit300. Amplifier301controls the current flowing through pass element303from an unregulated input voltage node Vinto a regulated voltage output node Vout. The regulated output voltage is provided to load311so that the voltage across the load stays constant regardless of variations in the current it pulls. The value of the regulated voltage is set by feedback network302and the input voltage at node Vref. The regulator feedback loop formed by amplifier301, pass element303, and feedback network302regulate the voltage at Voutin response to low frequency perturbations in load311. In response to high frequency perturbations, a sensing network triggers control circuitry310. Such a sensing network is exemplified in this embodiment by comparators308and309. In response to a trigger signal, the control circuitry adjusts the drive capability of pass element303to rapidly return Voutto its regulated value. When the voltage at Voutreturns to its regulated value the drive capability of pass element303is reset.
REFERENCES:
patent: 5309082 (1994-05-01), Payne
patent: 5978425 (1999-11-01), Takla
patent: 6661210 (2003-12-01), Kimball et al.
patent: 6680837 (2004-01-01), Buxton
patent: 6703815 (2004-03-01), Biagi
patent: 6809504 (2004-10-01), Tang et al.
patent: 6965218 (2005-11-01), Scoones et al.
patent: 6975494 (2005-12-01), Tang et al.
patent: 6995474 (2006-02-01), Tang et al.
patent: 7141956 (2006-11-01), Chapuis
patent: 7167054 (2007-01-01), Dening et al.
patent: 7323853 (2008-01-01), Tang et al.
patent: 2009/0009147 (2009-01-01), Jian
PhD Thesis,Current Efficient, Low Voltage, Low Drop-Out Regulators, Gabriel Alfonso Rincon-Mora,Georgia Institute of Technology, Nov. 1996, http://users.ece.gatech.edu/˜rincon/publicat/books/thesis/Ido—books.pdf.
Nguyen Matthew V
The Mueller Law Office, P.C.
ZeroG Wireless, Inc.
LandOfFree
Voltage regulator with a hybrid control loop does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Voltage regulator with a hybrid control loop, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voltage regulator with a hybrid control loop will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4112008