Inventor · disambiguated record
Gregory L. Schaffer
Also filed as: SCHAFFER GREGORY L
20 granted patents·564 citations·filing 1977–2016
95Inventor score
Files withMAXIM INTEGRATED PRODUCTS12XCELSEM LLC4SCHAFFER GREGORY L2EMERSON ELECTRIC CO1TOUCHSTONE SEMICONDUCTOR INC1
Top patents by PatentIndex Score
20 records- 0198US4138649AAmplifier systemEMERSON ELECTRIC CO·Filed 1977·Granted Feb 6, 1979·109 cites·15 claims
- 0295US5498984AHigh side, current sense amplifier using a symmetric amplifierMAXIM INTEGRATED PRODUCTS·Filed 1994·Granted Mar 12, 1996·79 cites·29 claims
- 0394US5870296ADual interleaved DC to DC switching circuits realized in an integrated circuitMAXIM INTEGRATED PRODUCTS·Filed 1997·Granted Feb 9, 1999·125 cites·21 claims
- 0487US9654092B1High speed gain stage with analog input and determinable digital output using regenerative feedbackXCELSEM LLC·Filed 2016·Granted May 16, 2017·7 cites·20 claims
- 0581US4806875APrecision operational amplifierMAXIM INTEGRATED PRODUCTS·Filed 1988·Granted Feb 21, 1989·27 cites·4 claims
- 0679USRE38140EDual interleaved DC to DC switching circuits realized in an integrated circuitMAXIM INTEGRATED PRODUCTS·Filed 2001·Granted Jun 10, 2003·33 cites·63 claims
- 0779US5721483AMethod and apparatus for enabling a step-up or step-down operation using a synchronous rectifier circuitMAXIM INTEGRATED PRODUCTS·Filed 1994·Granted Feb 24, 1998·47 cites·34 claims
- 0877US5142242APrecision transconductance amplifierMAXIM INTEGRATED PRODUCTS·Filed 1991·Granted Aug 25, 1992·29 cites·21 claims
- 0968US9647645B1Low voltage to high voltage level translator that is independent of the high supply voltageXCELSEM LLC·Filed 2016·Granted May 9, 2017·2 cites·19 claims
- 1066US5629612AMethods and apparatus for improving temperature drift of referencesMAXIM INTEGRATED PRODUCTS·Filed 1996·Granted May 13, 1997·35 cites·32 claims
- 1159US9553507B1Self regulating current to current charge pumpXCELSEM LLC·Filed 2016·Granted Jan 24, 2017·1 cites·23 claims
- 1258US5051686ABandgap voltage referenceMAXIM INTEGRATED PRODUCTS·Filed 1990·Granted Sep 24, 1991·19 cites·14 claims
- 1356US9419571B2Precision, high voltage, low power differential input stage with static and dynamic gate protectionXCELSEM LLC·Filed 2015·Granted Aug 16, 2016·1 cites·20 claims
- 1455US8487697B2Fully differential autozeroing amplifierSCHAFFER GREGORY L·Filed 2011·Granted Jul 16, 2013·2 cites·20 claims
- 1555US5880638ARail-to-rail operational amplifier and method for making sameMAXIM INTEGRATED PRODUCTS·Filed 1997·Granted Mar 9, 1999·16 cites·32 claims
- 1654US4859963AHigh speed low gain stable amplifierMAXIM INTEGRATED PRODUCTS·Filed 1988·Granted Aug 22, 1989·10 cites·11 claims
- 1752US8829996B1High voltage MOS input stageTOUCHSTONE SEMICONDUCTOR INC·Filed 2013·Granted Sep 9, 2014·1 cites·22 claims
- 1852US8717005B2Inherently accurate adjustable switched capacitor voltage reference with wide voltage rangeSCHAFFER GREGORY L·Filed 2012·Granted May 6, 2014·1 cites·20 claims
- 1946US5905368AMethod and apparatus for enabling a step-up or step-down operation using a synchronous rectifier circuitMAXIM INTEGRATED PRODUCTS·Filed 1997·Granted May 18, 1999·12 cites·19 claims
- 2045US5055796ACMOS output stageMAXIM INTEGRATED PRODUCTS·Filed 1990·Granted Oct 8, 1991·8 cites·21 claims
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