Gregory L Schaffer

Person

Cupertino, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
High speed gain stage with analog input and determinable digital ou...
- Patent number 9,654,092
- Issue date May 16, 2017
- XCELSEM, LLC
- Gregory L Schaffer
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Low voltage to high voltage level translator that is independent of...
- Patent number 9,647,645
- Issue date May 9, 2017
- XCELSEM, LLC
- Gregory L Schaffer
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Self regulating current to current charge pump
- Patent number 9,553,507
- Issue date Jan 24, 2017
- XCELSEM, LLC
- Gregory L Schaffer
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Precision, high voltage, low power differential input stage with st...
- Patent number 9,419,571
- Issue date Aug 16, 2016
- XCELSEM, LLC
- Gregory L Schaffer
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
High voltage MOS input stage
- Patent number 8,829,996
- Issue date Sep 9, 2014
- Silicon Laboratories Inc.
- Gregory L. Schaffer
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Inherently accurate adjustable switched capacitor voltage reference...
- Patent number 8,717,005
- Issue date May 6, 2014
- Silicon Laboratories Inc.
- Gregory L. Schaffer
- G05 - CONTROLLING REGULATING
Information Patent Grant
Fully differential autozeroing amplifier
- Patent number 8,487,697
- Issue date Jul 16, 2013
- Touchstone Semiconductor, Inc.
- Gregory L. Schaffer
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Dual interleaved DC to DC switching circuits realized in an integra...
- Patent number RE38140
- Issue date Jun 10, 2003
- Maxim Integrated Products, Inc.
- Gregory L. Schaffer
- 363 - Electric power conversion systems
Information Patent Grant
Method and apparatus for enabling a step-up or step-down operation...
- Patent number 5,905,368
- Issue date May 18, 1999
- Maxim Integrated Products
- Madhav V. Kolluri
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Rail-to-rail operational amplifier and method for making same
- Patent number 5,880,638
- Issue date Mar 9, 1999
- Maxim Integrated Products
- Gregory L. Schaffer
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Dual interleaved DC to DC switching circuits realized in an integra...
- Patent number 5,870,296
- Issue date Feb 9, 1999
- Maxim Integrated Products, Inc.
- Gregory L. Schaffer
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and apparatus for enabling a step-up or step-down operation...
- Patent number 5,721,483
- Issue date Feb 24, 1998
- Maxim Integrated Products
- Madhav V. Kolluri
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Methods and apparatus for improving temperature drift of references
- Patent number 5,629,612
- Issue date May 13, 1997
- Maxim Integrated Products, Inc.
- Gregory L. Schaffer
- G05 - CONTROLLING REGULATING
Information Patent Grant
High side, current sense amplifier using a symmetric amplifier
- Patent number 5,498,984
- Issue date Mar 12, 1996
- Maxim Integrated Products
- Gregory L. Schaffer
- G01 - MEASURING TESTING
Information Patent Grant
Precision transconductance amplifier
- Patent number 5,142,242
- Issue date Aug 25, 1992
- Maxim Integrated Products
- Gregory L. Schaffer
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
CMOS output stage
- Patent number 5,055,796
- Issue date Oct 8, 1991
- Maxim Integrated Products
- Gregory L. Schaffer
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Bandgap voltage reference
- Patent number 5,051,686
- Issue date Sep 24, 1991
- Maxim Integrated Products
- Gregory L. Schaffer
- G05 - CONTROLLING REGULATING
Information Patent Grant
High speed low gain stable amplifier
- Patent number 4,859,963
- Issue date Aug 22, 1989
- Maxim Integrated Products
- Gregory L. Schaffer
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Precision operational amplifier
- Patent number 4,806,875
- Issue date Feb 21, 1989
- Maxim Integrated Products
- Gregory L. Schaffer
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
PRECISION, HIGH VOLTAGE, LOW POWER DIFFERENTIAL INPUT STAGE WITH ST...
- Publication number 20160079944
- Publication date Mar 17, 2016
- Gregory L Schaffer
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
INHERENTLY ACCURATE ADJUSTABLE SWITCHED CAPACITOR VOLTAGE REFERENCE...
- Publication number 20140002052
- Publication date Jan 2, 2014
- TOUCHSTONE SEMICONDUCTOR, INC.
- Gregory L. Schaffer
- G05 - CONTROLLING REGULATING
Information Patent Application
FULLY DIFFERENTIAL AUTOZEROING AMPLIFIER
- Publication number 20130147559
- Publication date Jun 13, 2013
- TOUCHSTONE SEMICONDUCTOR, INC.
- Gregory L. Schaffer
- H03 - BASIC ELECTRONIC CIRCUITRY

Gregory L Schaffer

Person

Patents Grantslast 30 patents

High speed gain stage with analog input and determinable digital ou...

Low voltage to high voltage level translator that is independent of...

Self regulating current to current charge pump

Precision, high voltage, low power differential input stage with st...

High voltage MOS input stage

Inherently accurate adjustable switched capacitor voltage reference...

Fully differential autozeroing amplifier

Dual interleaved DC to DC switching circuits realized in an integra...

Method and apparatus for enabling a step-up or step-down operation...

Rail-to-rail operational amplifier and method for making same

Dual interleaved DC to DC switching circuits realized in an integra...

Method and apparatus for enabling a step-up or step-down operation...

Methods and apparatus for improving temperature drift of references

High side, current sense amplifier using a symmetric amplifier

Precision transconductance amplifier

CMOS output stage

Bandgap voltage reference

High speed low gain stable amplifier

Precision operational amplifier

Patents Applicationslast 30 patents

PRECISION, HIGH VOLTAGE, LOW POWER DIFFERENTIAL INPUT STAGE WITH ST...

INHERENTLY ACCURATE ADJUSTABLE SWITCHED CAPACITOR VOLTAGE REFERENCE...

FULLY DIFFERENTIAL AUTOZEROING AMPLIFIER