Francisco I Leon, 64331 71St St, West New York, NJ 07093

2013008, Apr 4, 2013

Oct 3, 2011

13/251527

Duanyang Wang - Harrison NJ, US
Dariusz Czarkowski - S. Setauket NY, US
Francisco de Leon - Ridgewood NJ, US
Kamiar J. Karimi - Kirkland WA, US
Lijun Gao - Renton WA, US
Shengyi Liu - Sammamish WA, US

H02M 3/335

363 17

A voltage conversion system and methods are disclosed. Phase-shift modulation signals are generated and interleaved to provide interleaved phase-shift modulation signals. A plurality of voltage converters are controlled using the interleaved phase-shift modulation signals to convert an input electrical current at an input voltage to an output electrical current at an output voltage.

2020025, Aug 13, 2020

Feb 7, 2020

16/785424

- New York NY, US
Francisco DE LEON - Bogota NJ, US

H02K 19/18
H02P 9/36
H02P 9/42

A synchronous generator with high frequency AC excitation source.

2018014, May 24, 2018

Apr 12, 2016

15/568439

- New York NY, US
Francisco DE LEON - Bogota NJ, US

H02H 7/22
H02H 1/00
H02H 9/00

Methods, systems, and apparatuses are disclosed for reducing geomagnetically-induced currents. The method includes connecting a plurality of switching devices at a neutral grounding connection point of at least one transformer bank. In a system having two terminals, the method includes grounding one transformer bank through a switch so as to reduce geomagnetically induced current. In a system having more than two terminals, the method includes grounding transformer banks through multiple switches, where the reduction is performed independently for each transformer bank. The method further involves determining a switching frequency and a duty cycle based on an evaluation of factors including effectiveness and fault current detection.

2016017, Jun 23, 2016

Dec 16, 2015

14/971060

- New York NY, US
Dariusz Czarkowski - New York NY, US
Francisco De Leon - New York NY, US
Mariusz Bojarski - New York NY, US

New York University - New York NY

B60L 11/18

A system for wirelessly charging an electric vehicle comprises a wireless charging coil having a first end, a second end, and a plurality of turns. The first end has a first turn having a first radius rand the second end has an Nturn having an Nradius r, r

2015021, Jul 30, 2015

Jan 24, 2014

14/163328

- Chicago IL, US
Dazhong Gu - Brooklyn NY, US
Dariusz Czarkowski - South Setauket NY, US
Francisco de Leon - Ridgewood NJ, US
Kamiar J. Karimi - Kirkland WA, US
Shengyi Liu - Sammamish WA, US

THE BOEING COMPANY - Chicago IL

H02M 1/14
H02M 7/217

A method and apparatus for converting direct current into alternating current. The direct current is converted into a number of alternating currents using a switch system. The number of alternating currents is filtered using a set of inductors and a set of capacitors. Higher-frequency electromagnetic interference is blocked using a choke located between the set of inductors and the set of capacitors.

2015002, Jan 29, 2015

Jul 22, 2014

14/338048

- New York NY, US
Francisco De Leon - New York NY, US

H01F 27/28
H01F 27/30
H01F 27/245

336 84 C, 29606

Toroidal transformers are currently used only in low-voltage applications. There is no published experience for toroidal transformer design at distribution-level voltages. Toroidal transformers are provided with electrostatic shielding to make possible high voltage applications and withstand the impulse test.

2015002, Jan 22, 2015

Sep 23, 2013

14/034066

- Chicago IL, US
Kerim Colak - Brooklyn NY, US
Dazhong Gu - Brooklyn NY, US
Duanyang Wang - Mountain View CA, US
Qingquan Tang - Kingston PA, US
Dariusz Czarkowski - South Setauket NY, US
Francisco de Leon - Ridgewood NJ, US
Kamiar J. Karimi - Kirkland WA, US
Shengyi Liu - Sammamish WA, US

The Boeing Company - Chicago IL

H02M 11/00
H03H 7/01

307 31, 333181

A power supply system is disclosed that includes a first interleaved power supply, a second interleaved power supply, and a common electromagnetic interference filter. The common electromagnetic interference filter is configured to provide DC power from a DC power source to both the first interleaved power supply and the second interleaved power supply. In one example, the common electromagnetic interference filter comprises a localized filter stage configured to receive DC power from the DC power source, and a distributed filter stage configured to receive DC power from the localized filter stage. The distributed filter stage includes a first set of common mode capacitors electrically connected to and physically proximate input power lines of the first interleaved power supply, and a second set of common mode capacitors electrically connected to and physically proximate input power lines of the second interleaved power supply.

2014021, Jul 31, 2014

Jan 29, 2013

13/752813

- Chicago IL, US
Dazhong Gu - Brooklyn NY, US
Dariusz Czarkowski - S. Setauket NY, US
Francisco de Leon - Ridgewood NJ, US
Kamiar Karimi - Brooklyn NY, US
Shengyi Liu - Sammamish WA, US

H02M 1/12

363 41

A power conversion system is disclosed that provides multiphase power, including phase voltages for each phase of the multiphase power. The system comprises a plurality of inverters that generate PWM output voltages based on PWM control signals. A plurality of inductive components is configured to receive the PWM output voltages to generate the phase voltages. The PWM output voltages cause circulating current flows through the inductive components. A voltage controller is employed that is responsive to the phase voltages to generate voltage modulation signals corresponding to the phase voltages. A plurality of current sharing channels are respectively associated with each of the plurality of inductive components and are configured generate current sharing modulation signals in response to the circulating current flows. The PWM control signals are generated based on modulation signals obtained by combining the current sharing modulation signals and voltage modulation signals.