Electricity: power supply or regulation systems – In shunt with source or load – Using a three or more terminal semiconductive device
Reexamination Certificate
2007-09-04
2007-09-04
Han, Jessica (Department: 2838)
Electricity: power supply or regulation systems
In shunt with source or load
Using a three or more terminal semiconductive device
C323S284000, C323S290000, C323S259000
Reexamination Certificate
active
10939469
ABSTRACT:
Voltage regulators and methods for regulating voltages are disclosed. A switching circuit with an inductor and a plurality of switches may be used to produce a regulated voltage from an unregulated voltage source. A control circuit may be used to monitor the voltages at the input and output of the voltage regulator, and operate the switches in either a buck, boost, or buck-boost mode depending on the relationship between the voltages at the input and output of the voltage regulator.
REFERENCES:
patent: 5481178 (1996-01-01), Wilcox et al.
patent: 6166527 (2000-12-01), Dwelley et al.
patent: 6828766 (2004-12-01), Corva et al.
TEA 1211HN—Philips Semiconductors; “High Efficiency Auto-Up/Down DC/DC Converter”;Integrated Circuits Data Sheet; c. 2003; pp. 1-22.
Maxim Integrated Products; “2 or 3-Cell, Step-Up/Down, Two-Way Pager System IC”; c. 1998; pp. 1-16.
Jordan Mark G.
Wells James Edward
Han Jessica
Linear Technology Corporation
McDermott Will & Emery LLP
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