Electricity: power supply or regulation systems – Self-regulating – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2005-07-06
2009-06-02
Han, Jessica (Department: 2838)
Electricity: power supply or regulation systems
Self-regulating
Using a three or more terminal semiconductive device as the...
C323S280000
Reexamination Certificate
active
07541796
ABSTRACT:
A voltage regulator output stage can include a power device whose body to source junction is forward biased using a MOSFET trigger. The forward biasing can advantageously reduce the threshold voltage of the power device, thereby effectively increasing its gate drive as well as its output current capability. Controlling the forward biasing using the MOSFET trigger provides minimal leakage, thereby ensuring that the output stage is commercially viable as well as performance enhanced.
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Rincon-Mora et al: “A Low-Voltage, Low Quiescent Current, Low Drop-Out Regulator”, IEEE Journal of Solid-State Curcuits, vol. 33, No. 1, Jan. 1998, pp. 36-44.
S. M. Sze: “Physics of Semiconductor Devices”, Physics and Properties of Semiconductors-A Resume, Wiley, 2ndEdition, pp. 32.
Jacob Baker: “CMOS Circuit Design, Layout and Simulation”, Wiley, 2ndEdition, pp. 636-637.
Bever Hoffman & Harms LLP
Han Jessica
Harms Jeanette S.
Micrel Incorporated
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