Douglas Robert Farrenkopf

Person

Campbell, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
ESD protection circuit with a low snapback voltage that is protecte...
- Patent number 7,379,283
- Issue date May 27, 2008
- National Semiconductor Corporation
- Douglas Robert Farrenkopf
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and system for providing startup delay
- Patent number 7,339,410
- Issue date Mar 4, 2008
- National Semiconductor Corporation
- Douglas Farrenkopf
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
ESD protection circuit for high-voltage, high DV/DT pads
- Patent number 6,952,333
- Issue date Oct 4, 2005
- National Semiconductor Corporation
- Douglas Robert Farrenkopf
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Bootstrap capacitor low voltage prevention circuit
- Patent number 6,714,067
- Issue date Mar 30, 2004
- National Semiconductor Corporation
- Douglas Robert Farrenkopf
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Multiphase switching regulator control architecture for low on time...
- Patent number 6,515,460
- Issue date Feb 4, 2003
- National Semiconductor Corporation
- Douglas Farrenkopf
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
DC-to-DC converter with current mode switching controller that prod...
- Patent number 6,229,293
- Issue date May 8, 2001
- National Semiconductor Corporation
- Douglas Robert Farrenkopf
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and apparatus using feedback to generate a ramped voltage wi...
- Patent number 6,169,433
- Issue date Jan 2, 2001
- National Semiconductor Corporation
- Douglas Robert Farrenkopf
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Circuit for generating interleaved ramped voltage signals having un...
- Patent number 6,111,440
- Issue date Aug 29, 2000
- National Semiconductor Corporation
- Jayendar Rajagopalan
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Switching controller chip with internal but not external soft start...
- Patent number 6,100,677
- Issue date Aug 8, 2000
- National Semiconductor Corporation
- Douglas Robert Farrenkopf
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching controller chip operable in selected ones of multiple pow...
- Patent number 6,094,039
- Issue date Jul 25, 2000
- National Semiconductor Corporation
- Douglas Robert Farrenkopf
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Fabrication of semiconductor structure having two levels of buried...
- Patent number 5,899,714
- Issue date May 4, 1999
- National Semiconductor Corporation
- Douglas R. Farrenkopf
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor structure having two levels of buried regions
- Patent number 5,889,315
- Issue date Mar 30, 1999
- National Semiconductor Corporation
- Douglas R. Farrenkopf
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
DMOS process module applicable to an E.sup.2 CMOS core process
- Patent number 5,854,099
- Issue date Dec 29, 1998
- National Semiconductor Corporation
- Douglas R. Farrenkopf
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Apparatus and method for adjusting the threshold voltage of MOS tra...
- Patent number 5,397,934
- Issue date Mar 14, 1995
- National Semiconductor Corporation
- Richard B. Merrill
- G05 - CONTROLLING REGULATING
Information Patent Grant
Method of making n-channel and p-channel junction field-effect tran...
- Patent number 5,296,409
- Issue date Mar 22, 1994
- National Semiconductor Corporation
- Richard B. Merrill
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
ESD protection using npn bipolar transistor
- Patent number 5,276,582
- Issue date Jan 4, 1994
- National Semiconductor Corporation
- Richard B. Merrill
- H01 - BASIC ELECTRIC ELEMENTS

Douglas Robert Farrenkopf

Person

Patents Grantslast 30 patents

ESD protection circuit with a low snapback voltage that is protecte...

Method and system for providing startup delay

ESD protection circuit for high-voltage, high DV/DT pads

Bootstrap capacitor low voltage prevention circuit

Multiphase switching regulator control architecture for low on time...

DC-to-DC converter with current mode switching controller that prod...

Method and apparatus using feedback to generate a ramped voltage wi...

Circuit for generating interleaved ramped voltage signals having un...

Switching controller chip with internal but not external soft start...

Switching controller chip operable in selected ones of multiple pow...

Fabrication of semiconductor structure having two levels of buried...

Semiconductor structure having two levels of buried regions

DMOS process module applicable to an E.sup.2 CMOS core process

Apparatus and method for adjusting the threshold voltage of MOS tra...

Method of making n-channel and p-channel junction field-effect tran...

ESD protection using npn bipolar transistor