Inventor · Raleigh, NC, US

Stuart Pullen

24Patents
14h-index
20Co-inventors
81Inventor score

Filing activity: Sep 14, 1998 → May 28, 2021

Most-cited inventions

PatentTitleAreaCited byStatus
US6583610B2 Virtual ripple generation in switch-mode power supplies Electricity 201 Expired
US6495995B2 Self-clocking multiphase power supply controller Emerging Cross-Sectional Technologies 61 Expired
US7019504B2 Constant ON-time controller for a buck converter Electricity 49 Expired
US6229389A Class D modulator with peak current limit and load impedance sensing circuits Electricity 45 Expired
US6118336A Start-up circuit for self oscillating class D modulator Electricity 44 Expired
US6304137A Output stage for high power class D amplifiers Electricity 30 Expired
US6472856B2 Bounded power supply voltage positioning Electricity 29 Expired
US6871289B2 Slew rate limited reference for a buck converter Electricity 27 Expired
US7107468B2 Peak current sharing in a multi-phase buck converter power system Electricity 23 Expired
US6232833A Low noise low distortion class D amplifier Electricity 23 Expired
US6107875A Variable frequency class D modulator with built in soft clipping and frequency limiting Electricity 18 Expired
US6587670B1 Dual mode class D amplifiers Electricity 17 Expired
US6297693A Techniques for synchronizing a self oscillating variable frequency modulator to an external clock Electricity 15 Expired
US6172541A Driver circuit having load-independent slew rate Electricity 14 Expired
US6249182A Class D amplifier with bandwidth independent of load impedance Electricity 13 Expired
US6768376B2 Dual mode class D amplifiers Electricity 12 Expired
US6108182A Overcurrent sensing circuit and self adjusting blanking Electricity 11 Expired
US10523042B2 Master-slave charging circuit with slave charger input current sensing and adaptive battery current limiting Electricity 7 Active
US10270342B2 Error correction for average current sensing in a switching regulator Emerging Cross-Sectional Technologies 5 Active
US9755514B2 Charge shedding circuit Emerging Cross-Sectional Technologies 3 Active
US10326296B2 Dual-phase operation for concurrently charging a battery and powering a peripheral device Electricity 3 Active
US10756614B2 Lossless average input and output current sensing in a switched-mode power supply Emerging Cross-Sectional Technologies 2 Active
US11557964B2 High-efficiency low-ripple burst mode for a charge pump Emerging Cross-Sectional Technologies 2 Active
US9294110B1 Correction circuits for successive-approximation-register analog-to-digital converters Electricity 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.