Patents by Inventor Mark A. Groninger
Mark A. Groninger has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10454377Abstract: A resonant power converter includes a resonance tank formed by a capacitance component and an inductance component, at least two switches connected to the resonance tank and a voltages source in a bridge configuration, a number of snubber capacitors connected in parallel to each of the switches, a controller configured to control ON and OFF timings of the at least two switches so as to excite the resonance tank, and a voltage sensor configured to sense a voltage drop across at least one of the switches. The controller is configured to switch the at least one of the switches to the ON state when the absolute value of the sensed voltage drop reaches a minimum.Type: GrantFiled: July 18, 2013Date of Patent: October 22, 2019Assignee: ABB B.V.Inventors: Menno Kardolus, Jos Schijffelen, Mark Gröninger, Dolf Van Casteren
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Patent number: 10166873Abstract: A battery charger for electric vehicles includes at least three identical current controlled AC-DC converter modules having reverse current protected outputs connected in parallel to a charge terminal of the battery.Type: GrantFiled: July 18, 2013Date of Patent: January 1, 2019Assignee: ABB B.V.Inventors: Menno Kardolus, Jos Schijffelen, Mark Gröninger, Dolf Van Casteren
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Patent number: 9497811Abstract: An LED driver circuit includes at least one string (10) of LEDs (12) connected in series, and a power supply for converting a mains voltage (AC) into an output voltage (Uout) to be applied to the at least one string (10) of LEDs, in which the power supply includes a single-stage boost converter (14) adapted to directly convert the mains voltage (AC) into the output voltage (Uout).Type: GrantFiled: March 4, 2014Date of Patent: November 15, 2016Assignee: Power Research Electronics B.V.Inventors: Jos H. Schijffelen, Menno Kardolus, Mark Gröninger, Dolf van Casteren
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Patent number: 9294148Abstract: A power supply circuit includes a number N, N?2, of parallel connected, cyclically switched electronic converters having outputs connected to a common output terminal; and a controller providing switching pulse signals switching the converters with a switching frequency that is the same for all converters; load circuits connected to the output terminal; a PLC transmitter modulating an output current from the output terminal; and a PLC receiver in each load circuit, the controller switching the converters with interleaved switching pulse signals; the PLC transmitter modulating the output current by switching the controller between at least two modes of operation that differ in phase relations and/or pulse shapes of the switching pulse signals, changing a ripple frequency spectrum of the output current such that a suppression amount of a predetermined frequency component is changed depending upon the mode of operation; and the PLC receiver detects the predetermined frequency component.Type: GrantFiled: September 4, 2015Date of Patent: March 22, 2016Assignee: LED DRIVEN HOLDING B.V.Inventors: Dolf van Casteren, Mark Gröninger, Menno Kardolus
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Publication number: 20160072551Abstract: A power supply circuit includes a number N, N?2, of parallel connected, cyclically switched electronic converters having outputs connected to a common output terminal; and a controller providing switching pulse signals switching the converters with a switching frequency that is the same for all converters; load circuits connected to the output terminal; a PLC transmitter modulating an output current from the output terminal; and a PLC receiver in each load circuit, the controller switching the converters with interleaved switching pulse signals; the PLC transmitter modulating the output current by switching the controller between at least two modes of operation that differ in phase relations and/or pulse shapes of the switching pulse signals, changing a ripple frequency spectrum of the output current such that a suppression amount of a predetermined frequency component is changed depending upon the mode of operation; and the PLC receiver detects the predetermined frequency component.Type: ApplicationFiled: September 4, 2015Publication date: March 10, 2016Inventors: Dolf van Casteren, Mark Gröninger, Menno Kardolus
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Publication number: 20160029451Abstract: An LED driver circuit includes at least one string (10) of LEDs (12) connected in series, and a power supply for converting a mains voltage (AC) into an output voltage (Uout) to be applied to said the at least one string (10) of LEDs, in which the power supply includes a single-stage boost converter (14) adapted to directly convert the mains voltage (AC) into the output voltage (Uout).Type: ApplicationFiled: March 4, 2014Publication date: January 28, 2016Inventors: Jos H. Schijffelen, Menno Kardolus, Mark Gröninger, Dolf van Casteren
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Publication number: 20130314038Abstract: A battery charger for electric vehicles includes at least three identical current controlled AC-DC converter modules having reverse current protected outputs connected in parallel to a charge terminal of the battery.Type: ApplicationFiled: July 18, 2013Publication date: November 28, 2013Inventors: Menno KARDOLUS, Jos Schijffelen, Mark Gröninger, Dolf Van Casteren
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Publication number: 20130301307Abstract: A resonant power converter includes a resonance tank formed by a capacitance component and an inductance component, at least two switches connected to the resonance tank and a voltages source in a bridge configuration, a number of snubber capacitors connected in parallel to each of the switches, a controller configured to control ON and OFF timings of the at least two switches so as to excite the resonance tank, and a voltage sensor configured to sense a voltage drop across at least one of the switches. The controller is configured to switch the at least one of the switches to the ON state when the absolute value of the sensed voltage drop reaches a minimum.Type: ApplicationFiled: July 18, 2013Publication date: November 14, 2013Applicant: ABB B.V.Inventors: Menno KARDOLUS, Jos SCHIJFFELEN, Mark GRÖNINGER, Dolf VAN CASTEREN
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Patent number: 7703893Abstract: An inkjet system including a printhead with an ink-fillable chamber operatively connected to a piezoelectric actuator and provided with a nozzle for the ejection of ink drops in response to the energization of the actuator, which actuator is connected to a measuring circuit for measuring an electrical signal generated by the actuator in response to the deformation thereof, wherein the system is configured such that a natural frequency of said system corresponds substantially to a natural frequency of a disturbance in the system.Type: GrantFiled: June 22, 2005Date of Patent: April 27, 2010Assignee: Océ-Technologies B.V.Inventors: Mark A. Gröninger, Marcus J. Van Den Berg, Hermanus M. A. Wijshoff
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Publication number: 20080304850Abstract: An image reproduction device includes a print processing system and a print sheet conveying system that conveys sheets with a continuously variable and dynamically adjustable processing speed. The device lowers the processing speed when the mains connection cannot deliver sufficient power to run at a nominal processing speed and is provided with a current monitor unit for monitoring total electrical current drawn by the device from the mains connection and a control unit connected to the current monitor unit and arranged for dynamically adjusting the processing speed to a lower value when the total electrical current is above a preset maximum value. The control unit regulates the lower processing speed value to make sure that the total electrical current drawn by the device from the mains connection is kept substantially equal to the preset maximum current value until the mains power is again sufficient for running at nominal processing speed.Type: ApplicationFiled: April 19, 2007Publication date: December 11, 2008Applicant: OCE-TECHNOLOGIES B.V.Inventors: Mark A. Groninger, Berend J.W. Waarsing, Ronald Fabel
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Publication number: 20050285908Abstract: An inkjet system including a printhead with an ink-fillable chamber operatively connected to a piezoelectric actuator and provided with a nozzle for the ejection of ink drops in response to the energization of the actuator, which actuator is connected to a measuring circuit for measuring an electrical signal generated by the actuator in response to the deformation thereof, wherein the system is configured such that a natural frequency of said system corresponds substantially to a natural frequency of a disturbance in the system.Type: ApplicationFiled: June 22, 2005Publication date: December 29, 2005Inventors: Mark Groninger, Marcus Van Den Berg, Hermanus Wijshoff