Inventor
Michael M. Walters
Inventor
Apex, NC, US
Overview
Patents· 51 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Mprimary
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 systems45%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications19%
G05FSystems for regulating electric or magnetic variables14%
H05BElectric heating6%
G06FElectric digital data processing5%
H02JElectric power networks5%
H01FMagnets2%
Y10TTechnical subjects covered by former us classification2%
H02HEmergency protective circuit arrangements1%
H03FAmplifiers1%
PatentTitleYear
9,998,027Dual mode power supply controller with charge balance multipliers and charge balance multiplier circuits20189,509,215'Dual mode power supply controller with charge balance multipliers and charge balance multiplier circuits'20169,484,805'Dual mode power supply controller with current regulation'20169,288,863'Lighting apparatus and methods using reconfigurable dimming mapping'20169,203,307'Power converter with bias voltage regulation circuit'20158,853,958'Driving circuits for solid-state lighting apparatus with high voltage LED components and related methods'20148,823,346'System and method of feed forward for boost converters with improved power factor and reduced energy storage'20148,754,625'System and method for converting an AC input voltage to regulated output current'2014RE044910'Current mode DC/DC converter with controlled output impedance'20148,634,217'System and method for converting an AC input voltage to a regulated DC output voltage using a Z-type converter with rectified switches'20148,569,963'Cascade boost and inverting buck converter with independent control'20138,305,055'Non-inverting buck boost voltage converter'20128,270,189'Charge circuit for optimizing gate voltage for improved efficiency'2012RE043414'Synthetic ripple regulator'2012RE042897'Current mode DC/DC converter with controlled output impedance'2011RE042532'Synchronous-rectified DC to DC converter with improved current sensing'2011RE042307'Thermally compensated current sensing of intrinsic power converter elements'2011RE042063'Multi-phase converter with balanced currents'2011RE040593'Multi-phase converter with balanced currents'20087,132,820'Synthetic ripple regulator'20067,019,502'Synchronization of multiphase synthetic ripple voltage regulator'20067,002,325'Clocked cascading current-mode regulator with high noise immunity and arbitrary phase count'20066,995,548'Asymmetrical multiphase DC-to-DC power converter'20066,995,549'DC-to-DC power regulator having non-linear load line and automatic leakage current offset adjustment'2006RE038940'Synchronous-rectified DC to DC converter with improved current sensing'2006RE038906'Current mode DC/DC converter with controlled output impedance'2005RE038846'Multi-phase converter with balanced currents'2005RE038780'Current mode DC/DC converter with controlled output impedance'20056,922,044'Synchronization of multiphase synthetic ripple voltage regulator'20056,870,352'Thermally compensated current sensing of intrinsic power converter elements'20056,833,690'Thermally compensated current sensing of intrinsic power converter elements'20046,812,677'Thermally compensated current sensing of intrinsic power converter elements'20046,791,306'Synthetic ripple regulator'20046,734,656'Buck regulator with monolithic N- channel upper FET and pilot current sensing'2004RE038487'Synchronous-rectified DC to DC converter with improved current sensing'2004RE038454'Multi-phase converter with balanced currents'20046,304,137'Output stage for high power class D amplifiers'20016,278,263'Multi-phase converter with balanced currents'20016,246,220'Synchronous-rectified DC to DC converter with improved current sensing'20016,181,120'Current mode dc/dc converter with controlled output impedance'20016,058,030'Multiple output DC-to-DC converter having enhanced noise margin and related methods'20005,982,160'DC-to-DC converter with inductor current sensing and related methods'19995,926,384'DC-dC converter having dynamic regulator with current sourcing and sinking means'19995,821,740'DC-to-DC converter having fast over-current detection and associated methods'19985,717,322'Method to improve the peak-current limit in a slope-compensated, current-mode DC/DC converter, and circuit therefor'19985,487,214'Method of making a monolithic magnetic device with printed circuit interconnections'19965,300,911'Monolithic magnetic device with printed circuit interconnections'19945,179,508'Standby boost converter'19935,157,592'DC-DC converter with adaptive zero-voltage switching'19925,153,453'High voltage majority carrier rectifier'19925,132,889'Resonant-transition DC-to-DC converter'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992–1996Patents assigned to IBM (6)· patent assignee history
1992–1996Based in Endwell, NY, US· patent location history
1998–1999Patents assigned to HARRIS CORP (4)· patent assignee history
1998–2000Based in Raleigh, NC, US· patent location history
2001–2018Based in Apex, NC, US· patent location history
2004–2014Patents assigned to INTERSIL INC (23)· patent assignee history
2012–2014Patents assigned to WALTERS MICHAEL M (8)· patent assignee history
2014–2018Patents assigned to CREE INC (6)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| INTERSIL INC | 23 | 2004–2014 |
| WALTERS MICHAEL Mself | 8 | 2012–2014 |
| CREE INC | 6 | 2014–2018 |
| IBM | 6 | 1992–1996 |
| HARRIS CORP | 4 | 1998–1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| Apex, NC, US | 40 | 2001–2018 |
| Endwell, New York, US | 6 | 1992–1996 |
| Raleigh, NC, US | 5 | 1998–2000 |