Patents Assigned to Power Systems, Inc.
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Patent number: 11929440Abstract: Methods and semiconductor devices are provided. A vertical junction field effect transistor (JFET) includes a substrate, an active region having a plurality of semiconductor fins, a source metal layer on an upper surface of the fins, a source metal pad layer coupled to the semiconductor fins through the source metal layer, a gate region surrounding the semiconductor fins, and a body diode surrounding the gate region.Type: GrantFiled: March 9, 2023Date of Patent: March 12, 2024Assignee: Nexgen Power Systems, Inc.Inventors: Clifford Drowley, Andrew P. Edwards, Subhash Srinivas Pidaparthi, Ray Milano
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Patent number: 11919416Abstract: In one embodiment, an EV charging system includes: a plurality of first converters to receive and convert grid power at a distribution grid voltage to at least one second voltage; a high frequency transformer coupled to the first converters to receive the at least one second voltage and output at least one high frequency AC voltage; and a plurality of port rectifiers coupled to a plurality of secondary windings of the high frequency transformer, each of the port rectifiers comprising a unidirectional AC-DC converter to receive and convert the at least one high frequency AC voltage to a DC voltage. At least some of the port rectifiers may be coupled in series to provide at least one of a charging current or a charging voltage to at least one dispenser to which at least one EV is to couple.Type: GrantFiled: May 26, 2022Date of Patent: March 5, 2024Assignee: Resilient Power Systems, Inc.Inventors: Josh Keister, Lyle T. Keister, Mehdi Abolhassani
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Patent number: 11916064Abstract: An integrated circuit with a fault reporting structure. The integrated circuit has at least one power MOSFET having a plurality of MOSFET cells with each MOSFET cell having a drain metal and a source metal, and the integrated circuit has a power MOSFET area for routing the drain metals and the source metals of the plurality of MOSFET cells. The fault reporting structure has a metal net routed in the power MOSFET area or in an area above or below the power MOSFET area.Type: GrantFiled: September 28, 2021Date of Patent: February 27, 2024Assignee: Monolithic Power Systems, Inc.Inventors: Chiahsin Chang, Tao Zhao, Xintong Lyu
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Patent number: 11916134Abstract: A semiconductor device includes a semiconductor substrate having a first conductivity type, a drift layer of the first conductivity type coupled to the semiconductor substrate, a fin array having a first row of fins and a second row of fins on the drift layer, and a space between the first row of fins and the second row of fins. The first row of fins includes a plurality of first elongated fins arranged in parallel to each other along a first row direction and separated by a first distance, and the second row of fins includes a plurality of second elongated fins arranged in parallel to each other along a second row direction and separated by a second distance.Type: GrantFiled: December 28, 2020Date of Patent: February 27, 2024Assignee: NEXGEN POWER SYSTEMS, INC.Inventors: Clifford Drowley, Ray Milano, Subhash Srinivas Pidaparthi, Andrew P. Edwards
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Patent number: 11905894Abstract: An internal combustion engine-based system includes an internal combustion engine. The internal combustion engine-based system includes an engine interrupt connected to the engine. The engine interrupt is configured to selectively stop the operation of the engine. The internal combustion engine-based system includes a controller in communication with the engine interrupt. The internal combustion engine-based system includes a carbon monoxide detector in communication with the controller. The controller uses the engine interrupt to stop the operation of the engine when the carbon monoxide detector provides the controller with signals that are representative of a carbon monoxide level proximate the internal combustion engine that together form a trend of building carbon monoxide amounts over a set time interval.Type: GrantFiled: January 10, 2022Date of Patent: February 20, 2024Assignee: Generac Power Systems, Inc.Inventors: Gregory A. Wischstadt, Adam M. Schroeder, Mitchell L. Horn, Brandon Schmidt, Kevin Cole, Tod R. Tesch
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Publication number: 20240055853Abstract: A circuit protection method, system, and apparatus are provided. The method includes: receiving a current between an output terminal of the inverter circuit and a power grid; determining, based on the current, whether a current abnormality occurs; and controlling to switch off switch transistors in the inverter circuit, on determining that a current abnormality occurs.Type: ApplicationFiled: December 9, 2021Publication date: February 15, 2024Applicant: ALTENERGY POWER SYSTEM INC.Inventors: Biaojie QI, Yongchun YANG, Yuhao LUO, Jian WU
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Publication number: 20240052773Abstract: Inwardly opposed piston, compression ignition engines are quiet, compact in size, and reliable.Type: ApplicationFiled: October 24, 2023Publication date: February 15, 2024Applicant: Enginuity Power Systems, Inc.Inventors: Gregory Powell, William Vincent Meyers, JR., Philip Silvester Zoldack, Nil Kanth Singh, Lara K. Reyes, Jay Subramanian, Michael Ampela, James Warren
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Patent number: 11892187Abstract: A device such as a smart thermostat is provided for controlling heating and cooling systems. The device is operable to execute an energy control program to control the heating and a cooling systems based upon different control strategies: a first control strategy that compares the at least one temperature setpoint in the programming schedule to the current measured dry bulb temperature to determine whether to engage or disengage the heating and a cooling systems, and a second control strategy that compares the at least one temperature setpoint in the programming schedule to a normalized humidex temperature to determine whether to engage or disengage the heating and a cooling systems, the normalized humidex temperature being the current measured dry bulb temperature modified by historical humidity values to provide an indicator of thermal comfort within the premise.Type: GrantFiled: March 24, 2021Date of Patent: February 6, 2024Assignee: GENERAC POWER SYSTEMS, INC.Inventor: Kevin Trinh
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Patent number: 11894724Abstract: A rotor core lamination is provided. The rotor core lamination includes a plurality of salient poles. Each of the salient poles includes: a pole body having a central axis in a radial direction of the rotor core lamination; and a pole shoe extending radially outward from the pole body, wherein the pole shoe has a pole shoe arc, and a central point of the pole shoe arc is offset from the central axis.Type: GrantFiled: October 29, 2020Date of Patent: February 6, 2024Assignee: Generac Power Systems, Inc.Inventor: David William Pollock
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Publication number: 20240039411Abstract: A method of setting a synchronous rectifier on-time value includes determining that a time interval has occurred, receiving a number of triangular current mode (TCM) pulses measured during the time interval, and determining a pulse comparison value equal to a number of switching period pulses during the time interval minus the number of TCM pulses during the time interval. The method also includes increasing the synchronous rectifier on-time if the pulse comparison value is greater than or equal to a threshold and decreasing the synchronous rectifier on-time if the pulse comparison value is less than the threshold.Type: ApplicationFiled: August 11, 2023Publication date: February 1, 2024Applicant: Nexgen Power Systems, Inc.Inventor: Anders Lind
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Publication number: 20240039289Abstract: A power supply system and a solar photovoltaic inverter, a DC/DC module and a rectification module. Since a power supply outputted from a solar panel is low-voltage power, the power supply at an output end of the solar panel can be directly supplied to a DC driving module and a DC side circuit. Since a power supply outputted from a main transformer is high-voltage power, the AC outputted from the main transformer can be directly supplied to an inverter driving module, a rectification driving module, and an AC side circuit, without additionally providing an auxiliary power supply for high-voltage isolation, namely, without additionally providing a switching circuit, a transformer, a second rectifier module, and a third rectifier module, thereby avoiding the noise and power consumption caused by frequent ON or OFF of the switching circuit, and reducing the cost.Type: ApplicationFiled: December 7, 2021Publication date: February 1, 2024Applicant: ALTENERGY POWER SYSTEM INC.Inventors: Yongchun YANG, Guoyong HUA, Biaojie QI, Yuhao LUO
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Patent number: 11888342Abstract: An electric system has an input terminal to receive an input voltage, a system output terminal to provide a system voltage, and N charging units for charging N loads respectively. The electric system has an input switch coupled between the input terminal and a first terminal, a switching circuit coupled between the first terminal and the system output terminal. The switching circuit converts the a boost output voltage at the first terminal to the system voltage, or converts the system voltage to the boost output voltage. The electric system further has a voltage control module having N input terminals coupled to the N charging units respectively, the voltage control module senses N charging currents passing through the N charging units respectively, and adjusts the boost output voltage based on the N charging currents.Type: GrantFiled: December 29, 2020Date of Patent: January 30, 2024Assignee: Monolithic Power Systems, Inc.Inventors: Yuncong Jiang, Christian Sporck, Guanghui Li
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Patent number: 11886028Abstract: A rollable ribbon separator tool for separating fibers in a rollable ribbon, the rollable ribbon separator including a chassis having a length and a guide surface along the chassis length for receiving a first portion of a rollable ribbon in a flattened position, the guide surface for positioning the first portion of the rollable ribbon having a first node with selected fibers to be separated, the selected fibers being positioned flat on the guide surface. The rollable ribbon separator includes a blade securable to the chassis, the blade having a cutting edge positioned toward the guide surface at an acute angle to the guide surface. The angle of the blade cutting edge with respect to the guide surface allows the cutting edge to urge the first portion of the flattened ribbon fibers against the guide surface when the fibers are drawn through the chassis along the guide surface.Type: GrantFiled: October 1, 2021Date of Patent: January 30, 2024Assignee: Hubbell Power Systems, INC.Inventors: Will Eisele, Brian Bourgoin
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Patent number: 11888310Abstract: Methods and apparatus to monitor the precharging of high voltage circuits are disclosed. In one embodiment, an apparatus includes a switch that selectively enables or disables precharge current to a high voltage circuit based on a switch control signal. The apparatus also includes a comparison circuit that compares a scaled version of a circuit voltage to a reference voltage to generate the switch control signal. In one embodiment, the switch control signal is generated to enable the precharge current when the scaled version of the circuit voltage is greater than the reference voltage.Type: GrantFiled: August 25, 2021Date of Patent: January 30, 2024Assignee: Motiv Power Systems, Inc.Inventors: Venkatesh Prasad Hanglur Narasimha, James Michael Castelaz
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Publication number: 20240024926Abstract: A mobile pressure washer can include a wheeled chassis, a power plant supported by the wheeled chassis, a fluid pump a fluid pump coupled to and driven by the power plant, a sprayer in fluid communication with the pump, a chemical solution container, and a container holder for supporting the chemical solution container. In some examples, the container holder has a frame operably connected to the wheeled chassis and has a container support mounted to the frame, the container support including a base wall and a sidewall defining a receptacle for receiving and supporting a container in fluid communication with the pump.Type: ApplicationFiled: August 1, 2023Publication date: January 25, 2024Applicant: Generac Power Systems, Inc.Inventors: Peter Nushart, Matt Fritsch, Keith Muellenbach
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Patent number: 11882446Abstract: A network access credential change request is received onto a network access credential updating system. The network access credential change request is a request to update access credentials of a network near a vehicle charge station. The new credential in the request is communicated to an electric vehicle. The network is updated with the network access credential. The vehicle is able to connect to the network with the updated credential after the network has been updated. In one embodiment, the network access credential updating system includes an application. A charge station operating entity communicates a network access credential change request for a particular network to the application. After sending the request, the charge station operating entity updates the network access credential for the network in accordance with a credential update agreement. The credential update agreement tends to afford adequate opportunity for vehicles to receive updated credentials before networks are updated.Type: GrantFiled: July 22, 2021Date of Patent: January 23, 2024Assignee: Motiv Power Systems, Inc.Inventors: James Michael Castelaz, Joseph O. DeAngelo
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Patent number: 11881813Abstract: A module switchoff device and a security protection system of a photovoltaic power generation system.Type: GrantFiled: August 6, 2019Date of Patent: January 23, 2024Assignee: ALTENERGY POWER SYSTEM INC.Inventors: Yuhao Luo, Dongming Zhou
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Patent number: 11881766Abstract: An apparatus for controlling a power converter includes a controller configured to detect an error in an output voltage of the power converter at a zero-crossing of a cyclically varying input signal and a compensator coupled to the controller and the power converter and configured to regulate the output voltage of the power converter in response to the error.Type: GrantFiled: November 11, 2021Date of Patent: January 23, 2024Assignee: NEXGEN POWER SYSTEMS, INC.Inventor: Anders Lind
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Patent number: D1011217Type: GrantFiled: January 10, 2020Date of Patent: January 16, 2024Assignee: GENERAC POWER SYSTEMS, INC.Inventor: Jonathan Hayes
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Patent number: D1017431Type: GrantFiled: April 11, 2022Date of Patent: March 12, 2024Assignee: GENERAC POWER SYSTEMS, INC.Inventors: Jonathan Hayes, Steve Caelers, Dave Lynch, Stuart Lombard