Inventor

John M. Pigott

Inventor

Phoenix, AZ, US

Overview

1987–2021

Patent span

Electricity

Primary field (CPC H)

Patents· 72 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H03Kprimary

H03KPulse technique14%

H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems12%

G05FSystems for regulating electric or magnetic variables10%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications6%

G01RMeasuring electric variables5%

H10DInorganic electric semiconductor devices4%

G11CStatic stores3%

H01LSemiconductor devices3%

H02HEmergency protective circuit arrangements3%

H03FAmplifiers3%

PatentTitleYear

10,958,151Distributed control of a multiphase power converter2021 10,942,535Operational amplifier with current limiting circuitry2021 10,892,617High speed wide dynamic range input structure2021 10,812,080High speed voltage level translator including an automatically bootstrapped cascode driver2020 10,802,521Voltage regulator with current-limiting and feed-forward circuit2020 10,712,763Sub-bandgap reference voltage source2020 10,642,303Fast-enable current source2020 10,393,597Over-temperature detector with test mode2019 10,218,254Switching power supply and method for operating a switched-mode power supply2019 10,139,448Scan circuitry with IDDQ verification2018 10,116,287Switched current control module and method therefor2018 9,983,614Voltage reference circuit2018 9,939,335Over-temperature detector with test mode2018 9,846,445Voltage supply regulator with overshoot protection2017 9,733,302'Circuit for monitoring metal degradation on integrated circuit'2017 9,664,729'Apparatus and method for monitoring operation of an insulated gate bipolar transistor'2017 9,667,084'Wireless charging systems, devices, and methods'2017 9,601,479'Protection circuit, circuit employing same, and associated method of operation'2017 9,559,592'Synchronous rectifier timer for discontinuous mode DC/DC converter'2017 9,552,890'Antifuse with bypass diode and method thereof'2017 9,501,081'Method and circuit for generating a proportional-to-absolute-temperature current source'2016 9,466,413'Die-to-die inductive communication devices and methods'2016 9,385,190'Deep trench isolation structure layout and method of forming'2016 9,356,515'Power switching device, three phase bridge inverter, and method of operating a power switching device'2016 9,329,208'Negative voltage measurement'2016 9,285,244'Variable reluctance sensor interface with integration based arming threshold'2016 9,104,222'Low dropout voltage regulator with a floating voltage reference'2015 9,103,847'Variable reluctance sensor interface with integration based arming threshold'2015 8,970,209'VRS interface with 1/T arming function'2015 8,970,285'Dual supply level shifter circuits'2015 8,937,478'Electrostatic occupant detection system'2015 8,754,626'Switching regulator with input current limiting capabilities'2014 8,447,245'Radio frequency transmitter having an amplifier with power supply modulation'2013 8,436,582'Battery cell equalizer system'2013 8,242,763'DC to DC converter having ability of switching between continuous and discontinuous modes and method of operation'2012 8,049,549'Delta phi generator with start-up circuit'2011 8,026,700'DC to DC converter having switch control and method of operation'2011 7,973,570'Sample-and-hold (S/H) circuit'2011 7,969,196'Circuits and methods for buffering and communicating data signals'2011 7,880,457'Dual-loop DC-to-DC converter apparatus'2011 7,808,286'Circuitry in a driver circuit'2010 7,800,350'Apparatus for optimizing diode conduction time during a deadtime interval'2010 7,737,670'Power converter with improved efficiency'2010 7,707,339'Data arbitration on a bus to determine an extreme value'2010 7,667,491'Low voltage output buffer and method for buffering digital output data'2010 7,456,679'Reference circuit and method for generating a reference signal from a reference circuit'2008 7,439,787'Methods and apparatus for a digital pulse width modulator using multiple delay locked loops'2008 7,276,419'Semiconductor device and method for forming the same'2007 7,058,149'System for providing a calibrated clock and methods thereof'2006 6,861,817'Method and apparatus for detecting a stall condition in a stepping motor'2005 6,825,641'High efficiency electrical switch and DC-DC converter incorporating same'2004 6,803,832'Oscillator circuit having reduced layout area and lower power supply transients'2004 6,747,434'Methods and devices for controlling stepper motors'2004 6,392,558'System for address initialization of generic nodes in a distributed command and control system and method therefor'2002 6,166,451'Distributed airbag firing system and interface circuit therefor'2000 6,166,653'System for address initialization of generic nodes in a distributed command and control system and method therefor'2000 6,069,493'Input circuit and method for protecting the input circuit'2000 5,917,363'Multiplexed driver system requiring a reduced number of amplifier circuits'1999 5,760,489'Method for transmitting signals between a microprocessor and an interface circuit'1998 5,483,406'Overvoltage protection circuit'1996 5,479,092'Curvature correction circuit for a voltage reference'1995 5,386,201'Temperature stable square wave oscillator'1995 5,128,634'Oscillator cirucit independent or parasitic capacitors'1992 5,119,265'Semiconductor device protection circuit'1992 5,111,381'H-bridge flyback recirculator'1992 5,077,491'Low standby current comparator having a zero temperature coefficient with hysterisis'1991 5,057,879'Noise reduction technique for breakdown diodes'1991 5,057,707'Charge pump including feedback circuitry for eliminating the requirement of a separate oscillator'1991 4,965,466'Substrate injection clamp'1990 4,926,073'Negative voltage clamp'1990 4,760,286'Comparator with input offset current elimination'1988 4,712,026'Delay circuit'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–2004Patents assigned to MOTOROLA INC (20)· patent assignee history

1987–2018Based in Tempe, AZ, US· patent location history

1990–2021Based in Phoenix, AZ, US· patent location history

1990Based in Phoeniz, AZ, US· patent location history

2004–2018Patents assigned to FREESCALE SEMICONDUCTOR INC (37)· patent assignee history

2012–2018Patents assigned to PIGOTT JOHN M (15)· patent assignee history

2015–2017Patents assigned to GRAY RANDALL C (4)· patent assignee history

2017–2021Patents assigned to NXP USA INC (19)· patent assignee history

2020Based in AZ, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
FREESCALE SEMICONDUCTOR INC	37	2004–2018
MOTOROLA INC	20	1987–2004
NXP USA INC	19	2017–2021
PIGOTT JOHN Mself	15	2012–2018
GRAY RANDALL C	4	2015–2017

Locations

Location	Patents	Span
Phoenix, AZ, US	67	1990–2021
Tempe, AZ, US	3	1987–2018
AZ, US	1	2020
Phoeniz, AZ, US	1	1990