Inventor · disambiguated record
Joan Wichard Strijker
Also filed as: STRIJKER JOAN W · STRIJKER JOAN WICHARD
33 granted patents·3 pending applications·214 citations·filing 1998–2024
96Inventor score
Top patents by PatentIndex Score
36 records- 0193US10128766B1Method and apparatus for bi-directional switched mode power supply with fixed frequency operationNXP BV·Filed 2017·Granted Nov 13, 2018·12 cites·21 claims
- 0293US9893638B1Switched mode power supplies with adaptive reference voltage for controlling output transistorNXP BV·Filed 2017·Granted Feb 13, 2018·10 cites·20 claims
- 0392US11057041B1Self-calibrating single slope analog-to-digital converterNXP BV·Filed 2020·Granted Jul 6, 2021·3 cites·21 claims
- 0489US10008948B1Active clamp circuit for switched mode power suppliesNXP BV·Filed 2016·Granted Jun 26, 2018·6 cites·18 claims
- 0589US9743468B2ControllerNXP BV·Filed 2015·Granted Aug 22, 2017·7 cites·11 claims
- 0689US9537403B2Control circuit for a switched-mode power supplyNXP BV·Filed 2013·Granted Jan 3, 2017·10 cites·13 claims
- 0786US10411603B1Switch mode power supply including bipolar active clampNXP BV·Filed 2018·Granted Sep 10, 2019·4 cites·20 claims
- 0885US11558047B2Switched-mode power supply controller and method for operating a switched-mode power supply controllerNXP BV·Filed 2020·Granted Jan 17, 2023·2 cites·20 claims
- 0985US11108402B1Delay compensated single slope analog-to-digital converterNXP BV·Filed 2020·Granted Aug 31, 2021·2 cites·21 claims
- 1083US10608541B1Digitizing the control loop for a power converter by using a delta-sigma modulatorNXP BV·Filed 2018·Granted Mar 31, 2020·3 cites·20 claims
- 1178US6256210B1Converter for conversion of an input voltage into an output voltagePHILIPS CORP·Filed 2000·Granted Jul 3, 2001·40 cites·5 claims
- 1271US10630169B1Power factor correction at switched mode power supplyNXP BV·Filed 2019·Granted Apr 21, 2020·1 cites·20 claims
- 1371US9263954B2Switched mode power supplySTRIJKER JOAN WICHARD·Filed 2012·Granted Feb 16, 2016·4 cites·14 claims
- 1469US10158296B1Method and system for saturation control in a flyback switched-mode power supply (SMPS)NXP BV·Filed 2018·Granted Dec 18, 2018·1 cites·20 claims
- 1569US7675280B2Power factor correction boost circuitNXP BV·Filed 2006·Granted Mar 9, 2010·8 cites·2 claims
- 1669US7202609B2Noise reduction in a power converterNXP BV·Filed 2003·Granted Apr 10, 2007·21 cites·10 claims
- 1761US7903436B2Smart blanking circuit for synchronous rectification in a switched mode power supplyNXP BV·Filed 2006·Granted Mar 8, 2011·5 cites·4 claims
- 1858US5901052ASwitched-mode power supply having a delay-insensitive timing in the control loopPHILIPS CORP·Filed 1998·Granted May 4, 1999·25 cites·7 claims
- 1955US7151679B2Adaptive leading edge blanking circuitKONINKL PHILIPS ELECTRONICS NV·Filed 2003·Granted Dec 19, 2006·11 cites·15 claims
- 2054US2025385601A1Current sensing in totem pole power factor correction circuitNXP USA INC·Filed 2024·Application pending·0 cites
- 2153US10998827B2Supply voltage connected p-type active clamp for switched mode power supplyNXP BV·Filed 2018·Granted May 4, 2021·0 cites·17 claims
- 2252US11588407B2Switched mode power supplyNXP BV·Filed 2020·Granted Feb 21, 2023·0 cites·20 claims
- 2352US2024283364A1Switched mode power supply (smps)NXP USA INC·Filed 2023·Application pending·0 cites
- 2451US6509784B2Switched mode power supply controlKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted Jan 21, 2003·13 cites·2 claims
- 2549US10050539B2Switched mode power supply with reduced delay timeNXP BV·Filed 2016·Granted Aug 14, 2018·0 cites·20 claims
- 2649US7304870B2Power converterNXP BV·Filed 2003·Granted Dec 4, 2007·10 cites·11 claims
- 2748US10396677B2Forward fed boost converter for flyback switched mode power supply and method thereofNXP BV·Filed 2018·Granted Aug 27, 2019·0 cites·17 claims
- 2848US9252673B2ControllerNXP BV·Filed 2015·Granted Feb 2, 2016·0 cites·15 claims
- 2946US9471138B2Switched mode power supply, a controller therefor, a lighting circuit and a control methodNXP BV·Filed 2015·Granted Oct 18, 2016·0 cites·15 claims
- 3042US8279635B2Driving circuitSTRIJKER JOAN WICHARD·Filed 2010·Granted Oct 2, 2012·0 cites·12 claims
- 3141US10587184B2Charge pump circuit driving a load connection switchNXP BV·Filed 2016·Granted Mar 10, 2020·0 cites·10 claims
- 3241US6850422B2Converter circuit with controllable switching means utilizing a switching frequency windowKONINKL PHILIPS ELECTRONICS NV·Filed 2002·Granted Feb 1, 2005·4 cites·5 claims
- 3337US6011414AArrangement for reducing the effects of capacitive coupling in a control circuit for a switched-mode power supplyPHILIPS ELECTRONICS NA·Filed 1998·Granted Jan 4, 2000·10 cites·3 claims
- 3437US2008093641A1Method of manufacturing a multi-path lateral high-voltage field effect transistorLUDIKHUIZE ADRIANUS WILLEM·Filed 2007·Application pending·0 cites
- 3534US9543288B2Semiconductor isolation structureNXP BV·Filed 2015·Granted Jan 10, 2017·0 cites·15 claims
- 3634US6542386B2Switched mode power regulatorKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted Apr 1, 2003·2 cites·11 claims
Join the waitlist — get patent alerts
Get an alert when Joan Wichard Strijker files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →