Patents by Inventor Kent Kernahan

Kent Kernahan 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).

  • Publication number: 20200315112
    Abstract: A reliable aeroponic plant growing system provides a wireless connection between its subsystems for the exchange of data and commands. The various subsystems manage one or more plant growing atriums, to include misting of roots, maintenance of water levels, addition of various nutrients, and light cycling.
    Type: Application
    Filed: July 24, 2015
    Publication date: October 8, 2020
    Inventor: Kent KERNAHAN
  • Patent number: 10411147
    Abstract: A solar panel is constructed by electrically connecting one or more banks of solar cells in series, wherein each cell in each bank is electrically connected in series. In some aspects the cells are a quarter of typical full size cells in the direction of current flow. A panel may comprise banks of differing cell counts. Bypass diodes are not used.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: September 10, 2019
    Inventor: Kent Kernahan
  • Patent number: 9693512
    Abstract: A hydroponic system includes a first sensor system that measures one or more characteristics of a nutrient solution, a second sensor system that measures one or more characteristics of an environment of a plant; and a network device including a communication interface to the first sensor system and a communication interface to the second sensor system. The network device may be configured to transmit measurements from the sensor systems through a wireless network to a remote device or database. The network device and the sensor systems may be implemented in a housing that fits within a collar of the hydroponic system. The collar can allow easy replacement of the sensor systems and can electrically isolate the sensor systems.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: July 4, 2017
    Assignee: Aessense Technology Hong Kong Limited
    Inventors: Tianshu Chen, Wenpeng Hsueh, Huafang Zhou, Simon Wong, Kent Kernahan
  • Patent number: 9668434
    Abstract: A system for providing water to the roots of a plant being grown in an aeroponic growth system includes small reservoirs containing water and a mist generator, wherein the mist generator provides mist under low pressure to a channel which directs the mist to the roots of the plant.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: June 6, 2017
    Assignee: AESsense Technology Hong Kong Ltd.
    Inventor: Kent Kernahan
  • Publication number: 20160255781
    Abstract: A hydroponic system includes a first sensor system that measures one or more characteristics of a nutrient solution, a second sensor system that measures one or more characteristics of an environment of a plant; and a network device including a communication interface to the first sensor system and a communication interface to the second sensor system. The network device may be configured to transmit measurements from the sensor systems through a wireless network to a remote device or database. The network device and the sensor systems may be implemented in a housing that fits within a collar of the hydroponic system. The collar can allow easy replacement of the sensor systems and can electrically isolate the sensor systems.
    Type: Application
    Filed: March 4, 2016
    Publication date: September 8, 2016
    Inventors: Tianshu Chen, Wenpeng Hsueh, Huafang Zhou, Simon Wong, Kent Kernahan
  • Publication number: 20160028442
    Abstract: A removable device rests within a fixed device for the purpose of providing sensor data and/or communications capability to the fixed device. The removable device has no power source of its own, instead receiving power from a collar affixed to the fixed device with a pair of coils in proximate locations. Another pair of coils provides data between the two. The fixed device is permanently serialized so that a supervisory system may associate communications from the removable device with a certain fixed device.
    Type: Application
    Filed: July 26, 2014
    Publication date: January 28, 2016
    Inventor: KENT KERNAHAN
  • Publication number: 20160021836
    Abstract: A reliable aeroponic plant growing system provides a wireless connection between its subsystems for the exchange of data and commands. The various subsystems manage one or more plant growing atriums, to include misting of roots, maintenance of water levels, addition of various nutrients, and light cycling.
    Type: Application
    Filed: July 26, 2014
    Publication date: January 28, 2016
    Inventor: KENT KERNAHAN
  • Publication number: 20160021837
    Abstract: A system for providing water to the roots of a plant being grown in an aeroponic growth system includes small reservoirs containing water and a mist generator, wherein the mist generator provides mist under low pressure to a channel which directs the mist to the roots of the plant.
    Type: Application
    Filed: July 23, 2014
    Publication date: January 28, 2016
    Inventor: KENT KERNAHAN
  • Publication number: 20150136200
    Abstract: A solar panel is constructed by electrically connecting one or more banks of solar cells in series, wherein each cell in each bank is electrically connected in series. In some aspects the cells are a quarter of typical full size cells in the direction of current flow. A panel may comprise banks of differing cell counts. Bypass diodes are not used.
    Type: Application
    Filed: January 23, 2015
    Publication date: May 21, 2015
    Inventor: KENT KERNAHAN
  • Patent number: 8952672
    Abstract: A solar panel is constructed by electrically connecting one or more banks of solar cells in series, wherein each cell in each bank is electrically connected in series. In some aspects the cells are a quarter of typical full size cells in the direction of current flow. A module senses and controls small signal conduction and total conduction of the panel such that reverse current conduction of a weak or partially shaded cell is prevented, thereby allowing the panel to be constructed without bypass diodes. In some aspects the module prevents damage to the panel by an external inverter's maximum power point experiments; in other aspects the module itself provides maximum power point control.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: February 10, 2015
    Inventor: Kent Kernahan
  • Patent number: 8482156
    Abstract: A direct current to pulse amplitude modulated (“PAM”) current converter, denominated a “PAMCC”, is connected to an individual source of direct current. The PAMCC receives direct current and provides pulse amplitude modulated current at its three output terminals, wherein the current of each terminal is one hundred twenty degrees out of phase with the other two terminals. The pulses are produced at a high frequency relative to the signal modulated on a sequence of pulses. The signal modulated onto a sequence of pulses may represent portions of a lower frequency sine wave or other lower frequency waveform, including DC. When each phased output is connected in parallel with the outputs of similar PAMCCs an array of PAMCCs is formed, wherein each voltage phased output pulse is out of phase with respect to a corresponding current output pulse of the other PAMCCs.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: July 9, 2013
    Assignee: Array Power, Inc.
    Inventors: Sorin Spanoche, Kent Kernahan
  • Publication number: 20120268087
    Abstract: A solar panel is constructed by electrically connecting one or more banks of solar cells in series, wherein each cell in each bank is electrically connected in series. In some aspects the cells are a quarter of typical full size cells in the direction of current flow. A module senses and controls small signal conduction and total conduction of the panel such that reverse current conduction of a weak or partially shaded cell is prevented, thereby allowing the panel to be constructed without bypass diodes. In some aspects the module prevents damage to the panel by an external inverter's maximum power point experiments; in other aspects the module itself provides maximum power point control.
    Type: Application
    Filed: January 17, 2012
    Publication date: October 25, 2012
    Inventor: KENT KERNAHAN
  • Publication number: 20120215372
    Abstract: Methods, apparatus and systems for controlling a photovoltaic panel while ensuring the power source operates safely include determining a temperature of the photovoltaic panel, determining a voltage provided from the photovoltaic panel, determining a parameter based on the voltage and the temperature and controlling a power converter based on the determined parameter. The power converter may be a pulse amplitude modulated current converter (PAMCC). The PAMCC may be controlled through tables of pulse durations based on the determined parameter. The voltage output may be controlled through a fast control loop and through a slower control loop, and the power demand from the solar panel may be controlled such that the output voltage does not vary from the expected value by more than a predetermined value.
    Type: Application
    Filed: October 20, 2011
    Publication date: August 23, 2012
    Applicant: Array Converter Inc.
    Inventors: Kent Kernahan, Sorin Spanoche, Aldrin Aviananda, Shiloh Hawley, David Stewart
  • Publication number: 20120212064
    Abstract: Methods, apparatus and systems for controlling a photovoltaic panel, to output three-phase power while ensuring the power source operates safely include determining a temperature of the photovoltaic panel, determining a voltage provided from the photovoltaic panel, determining a parameter based on the voltage and the temperature and controlling a DC to three-phase power converter based on the determined parameter. The three-phase power converter may be a pulse amplitude modulated current converter (PAMCC), configured to output first, second and third pulse amplitude modulated current pulse from three terminals controlled in timing and phase so that when respective outputs of multiple PAMCCs are connected, each phase of the plurality of PAMCCs is demodulated to produce a three-phase alternating current output. The PAMCC may be controlled through tables of pulse durations based on the determined parameter. The voltage output may be controlled through a fast control loop and through a slower control loop.
    Type: Application
    Filed: October 20, 2011
    Publication date: August 23, 2012
    Applicant: Array Converter Inc.
    Inventors: Sorin Andrei Spanoche, Kent Kernahan, Ion Opris, Paul Scrobohaci, Peter Curzon, Richard Moeller, Shiloh Hawley, Aldrin Aviananda, David Stewart, Felipe Fuks, Marc Elpel
  • Patent number: 8239149
    Abstract: Due to their exposure to extreme environments, it is expected that parts or all of a solar power system will experience degradation in performance. The degradation may be due to temporary environmental factors, such as cloud cover; damage or localized soiling; a general dirty condition; or ageing of the components. A method is disclosed wherein a remote system may detect degraded performance and determine the cause, thereby enabling a decision as to the appropriate corrective action to be taken, if any.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: August 7, 2012
    Assignee: Array Power, Inc.
    Inventors: Mika Nuotio, Kent Kernahan
  • Publication number: 20120146437
    Abstract: Methods, apparatus and systems provide a rotary three-phase to two-phase converter. The converter may receive three phase electrical power in windings of a three phase induction motor. The motor may have a rotor and induction windings with three connections in parallel in a delta wiring configuration. Two of the connectors may be connected in parallel to a two phase load. In the various embodiments, switches may be controlled to optionally disconnect the load from the rotary converter. In various embodiments, the induction motor rotor may be free rotating, coupled to fly wheel or mechanically connected to a mechanical load.
    Type: Application
    Filed: December 8, 2011
    Publication date: June 14, 2012
    Applicant: ArrayPower Inc.
    Inventor: Kent Kernahan
  • Patent number: 8193795
    Abstract: A power converter circuit senses the output voltage (Vo) and controls the converter's duty cycle (d1) to provide a steady output current (Io) or input power (Pin) in each switching cycle (T). During an initial period (Tramp), the controller provides a possibly smaller target current (Iramp) to reduce the system stress while the output voltage rises to a suitable value (InitVtar).
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: June 5, 2012
    Assignee: Exar, Inc.
    Inventors: Dongsheng Zhou, Kent Kernahan, Milton D. Ribeiro
  • Patent number: 8154892
    Abstract: Power output of a power generation system is controlled by measuring the output voltage of the system, dividing the measured voltage value into a target power value, then controlling the current provided by the generation system to the calculated value. In some embodiments the power generation system is connected to a grid.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: April 10, 2012
    Assignee: Arraypower, Inc.
    Inventor: Kent Kernahan
  • Patent number: 8093754
    Abstract: Methods for compensating for reduced power output in stages of electrical power may be implemented within a direct current to pulse amplitude modulated (“PAM”) current converter, denominated a “PAMCC”, is connected to an individual source of direct current. The PAMCC receives direct current and provides pulse amplitude modulated current at its output. An array of PAMCCs constructed in accordance with the present invention form a distributed multiphase inverter whose combined output is the demodulated sum of the current pulse amplitude modulated by each PAMCC. The array is configured as a series of stages, wherein the power sources within each stage are in parallel. In some embodiments two or more stages are connected in series. In some embodiments tow or more stages are connected in a “Y” configuration. In some embodiments a weak power source is compensated for by adjusting the voltage or the current of the weak power source.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: January 10, 2012
    Assignee: Array Converter, Inc.
    Inventor: Kent Kernahan
  • Patent number: D741217
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: October 20, 2015
    Assignee: Aessense Technology Hong Kong Limited
    Inventor: Kent Kernahan