Patents Assigned to Power Systems, Inc.
  • Charging device and charging method thereof
    Patent number: 10965137
    Abstract: A charging device including a converter and a controller coupled with the converter is provided. The charging device is suitable for charging to an electronic device having a rated input voltage value. The converter can receive a power. Wherein, the controller makes the converter to output a first charging voltage value to the electronic device. The first charging voltage value is greater than the rated input voltage value of the electronic device. Further, a charging method of the charging device is provided.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: March 30, 2021
    Assignee: CYBER POWER SYSTEMS, INC.
    Inventors: Lien-Hsun Ho, Heng-Chuan Chen, Che-Wei Liang
  • Voltage regulator with nonlinear adaptive voltage position and control method thereof
    Patent number: 10951116
    Abstract: A voltage regulator has a switching circuit and a control circuit. The switching circuit provides an output voltage and an output current. The control circuit provides a switching control signal to the switching circuit to adjust the output voltage, such that the output voltage decreases with a first slope as the output current increases when the output current is less than a predetermined current, the output voltage decreases with a second slope as the output current increases when the output current is larger than the predetermined current.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: March 16, 2021
    Assignee: Monolithic Power Systems, Inc.
    Inventors: Chao Liu, Daocheng Huang, Cong Deng
  • Bi-directional snapback ESD protection circuit
    Patent number: 10930644
    Abstract: An ESD protection circuit having a discharging transistor and a body snatching circuit. The discharging transistor is electrically coupled between a first node and a second node. The gate of the discharging transistor is electrically coupled to a driving voltage. The body snatching circuit receives the voltages at the first and second nodes and outputs either the voltage at the first node or the voltage at the second node based on which of these two voltages have a lower value. The output voltage of the body snatching circuit is provided to the body of the discharging transistor.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: February 23, 2021
    Assignee: Monolithic Power Systems, Inc.
    Inventor: Eric Braun
  • Isolated resonant converter with fixed output ripple
    Patent number: 10931204
    Abstract: An isolated resonant converter has an analog comparator with hysteresis for generating a first ON/OFF signal, a digital isolator for outputting a second ON/OFF signal, an oscillator for providing a clock pulse signal with a frequency, and a primary pulse width modulator coupled to receive the clock pulse signal and the second ON/OFF signal. An output voltage of the isolated resonant converter is controlled by the analog comparator within a predefined range. The second ON/OFF signal is electrically isolated from the first ON/OFF signal. The primary pulse width modulator controls the switching of the isolated resonant converter in response to the clock pulse signal during the logic high state of the second ON/OFF signal and stops the switching of the isolated resonant converter during the logic low state of the second ON/OFF signal.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: February 23, 2021
    Assignee: Monolithic Power Systems, Inc.
    Inventors: Di Han, Jian Jiang, Panyin Liu
  • METHOD AND SYSTEM FOR FABRICATION OF A VERTICAL FIN-BASED FIELD EFFECT TRANSISTOR
    Publication number: 20210028312
    Abstract: A transistor includes a substrate having a first surface and a second surface opposite the first surface, a drift region having a doped region on the first surface of the substrate and a graded doping region on the doped region, a semiconductor fin protruding from the graded doping region and comprising a metal compound layer at an upper portion of the semiconductor fin, a source metal contact on the metal compound layer, a gate layer having a bottom portion directly contacting the graded doping region; and a drain metal contact on the second surface of the substrate.
    Type: Application
    Filed: July 15, 2020
    Publication date: January 28, 2021
    Applicant: NexGen Power Systems, Inc.
    Inventors: Clifford Drowley, Ray Milano, Subhash Srinivas Pidaparthi, Andrew P. Edwards, Hao Cui, Shahin Sharifzadeh
  • System and method for programmably operating DC loads
    Patent number: 10897284
    Abstract: A system and method for programmably operating a DC load connected to a DC outlet. A power line communication (PLC) client at the outlet measures actual and desired DC voltage at the load. A remotely located DC power server is connected between a DC power source and the outlet. The power server has a PLC master in bidirectional feedback communication with the PLC client to determine the actual and desired DC voltage at the load. An adjustable DC voltage module at the power server is controlled by the PLC master to supply an adjustable DC voltage. The power server adjusts the DC voltage supplied by the voltage module to the load based on the bidirectional feedback communication between the PLC master and the PLC client.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: January 19, 2021
    Assignee: NEXTEK POWER SYSTEMS, INC.
    Inventors: Jeffrey Hunsinger, Paul Savage, Paul Wickett
  • Reduced stack voltage circuitry for energy storage system diagnostics
    Patent number: 10895604
    Abstract: Systems and methods to provide a low voltage interface coupleable between an energy storage device or a DC power source (e.g., fuel cell stack, battery) and one or more AC signal diagnostic systems. The low voltage interface reduces a voltage of the DC power source and supplies the reduced voltage to the one or more AC signal diagnostic systems without affecting the results of the measurements obtained by the one or more AC signal diagnostic systems. Such functionality provides a safer method for performing advanced analysis (e.g., EIS, frequency analysis) while utilizing lower cost and/or smaller components.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: January 19, 2021
    Assignees: Ballard Power Systems Inc., Simon Fraser University
    Inventors: Jacob W. Devaal, Hooman Homayouni, Farid Golnaraghi
  • Power supply and power supplying method with power backup
    Patent number: 10892637
    Abstract: A power supply covering both power sharing and power backup functions run in a more efficient and flexible way. The power supply adopts a power sharing converter coupled between a first bus terminal and a second bus terminal, so that if one of the bus terminals provides insufficient power, the other bus terminal kicks in by way of the power sharing converter to provide power support. In addition, a storage capacitor may also kick in to provide power support if one of the bus terminals provide insufficient power via or not via the power sharing converter.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: January 12, 2021
    Assignee: Monolithic Power Systems, Inc.
    Inventors: Ming Lu, Pengjie Lai, Jian Jiang
  • Compression apparatus for fuel cell stack
    Patent number: 10892509
    Abstract: A fuel cell stack assembly is disclosed comprising: a fuel cell stack comprising a first end plate, a second end plate, and a plurality of fuel cells interposed between the first and the second end plates; and a compression band which urges the first end plate towards the second end plate along a first face of the fuel cell stack and also along an opposing second face of the fuel stack in a stacking direction thereof in at least two passes on each face of fuel cells stack, thereby applying a compressive force upon the plurality of fuel cells in the fuel cell stack.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: January 12, 2021
    Assignee: BALLARD POWER SYSTEMS INC.
    Inventors: David Myers, George Skinner, Emerson R. Gallagher
  • Fuel bypass system for gaseous-fueled engine
    Patent number: 10883415
    Abstract: A method of operating a forced induction gaseous-fueled engine includes mixing gaseous-fuel and engine intake air to form a mixture at a fuel mixer. The method includes delivering the mixture to an intake manifold by at least partially bypassing a charge air cooler.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: January 5, 2021
    Assignee: Generac Power Systems, Inc.
    Inventors: Steven W. Craig, Andrew P. Sibrel, Aaron J. Baska, Douglas R Clement
  • Systems having impedance source semiconductor device protection
    Patent number: 10879693
    Abstract: A Z source network includes positive and negative input terminals and a first snubber circuit connected across the positive and negative input terminals. The first snubber circuit is configured to suppress voltage transients across the positive and negative input terminals. The Z source network also includes positive and negative output terminals and a second snubber circuit connected across the positive and negative output terminals. The second snubber circuit is configured to suppress voltage transients across the positive and negative output terminals.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: December 29, 2020
    Assignee: DRS NAVAL POWER SYSTEMS, INC.
    Inventors: Christopher Harper, Jeffery Fischer, Ian Wallace
  • Soil displacement piles
    Patent number: 10865539
    Abstract: Soil displacement piles having a shaft and one or more soil displacement assemblies secured to the shaft are provided. If more than one soil displacement assembly is utilized, each soil displacement assembly is separated by a longitudinal distance. Each soil displacement assembly has an upper helical plate, a lower helical plate and separated from the upper helical plate by a longitudinal plate distance, and at least one soil displacement plate positioned relative to the shaft, the upper helical plate and the lower helical plate.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: December 15, 2020
    Assignee: HUBBELL POWER SYSTEMS, INC.
    Inventors: Alex Joseph Raposo, Matthew Alan Conte, Gary Leonard Seider, Timothy Michael Kemp, Shawn David Downey
  • Hybrid power generation system using generator with variable mechanical coupling and methods of operating the same
    Patent number: 10862310
    Abstract: A system includes a generator configured to be electrically coupled to a grid, a transmission configured to mechanically couple the generator to a prime mover, a converter circuit configured to be electrically coupled between the grid and an energy storage device, and a controller configured to control the converter circuit and the transmission. The controller may operate the converter circuit to source or sink power in response to a change on the grid meeting a criterion. The controller may be further configured to adjust a transmission ratio of the transmission based on a demand on the generator. The controller may also be configured to cause the transmission to mechanically decouple the generator from the prime mover while maintaining an electrical coupling of the generator to the grid so that the mechanically decoupled generator can contribute current to a fault on the grid.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: December 8, 2020
    Assignee: Flexgen Power Systems, Inc.
    Inventors: Pasi Taimela, Tony Olivo
  • TAMPER-RESISTANT HOLE COVERING SYSTEMS AND RELATED METHODS
    Publication number: 20200378425
    Abstract: Tamper-resistant, hole covering systems are provided. An exemplary system may include tamper-resistant coverings on the sides of a hole of an article to cover the hole and a tamper-resistant fastener that passes through the hole and securely connects the two coverings.
    Type: Application
    Filed: May 28, 2020
    Publication date: December 3, 2020
    Applicant: Enginuity Power Systems, Inc.
    Inventor: Steven Spurr
  • High power gallium nitride electronics using miscut substrates
    Patent number: 10854727
    Abstract: A method of fabricating an electronic device includes providing a III-V substrate having a hexagonal crystal structure and a normal to a growth surface characterized by a misorientation from the <0001> direction of between 0.15° and 0.65°. The method also includes growing a first III-V epitaxial layer coupled to the III-V substrate and growing a second III-V epitaxial layer coupled to the first III-V epitaxial layer. The method further includes forming a first contact in electrical contact with the III-V substrate and forming a second contact in electrical contact with the second III-V epitaxial layer.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: December 1, 2020
    Assignee: NEXGEN POWER SYSTEMS, INC.
    Inventors: Isik C. Kizilyalli, Dave P. Bour, Thomas R. Prunty, Gangfeng Ye
  • Power supply and power supply method with power sharing and overshoot preventing
    Patent number: 10855174
    Abstract: A power supply covering power sharing and overshoot preventing functions. In the power supply, a first eFuse is used to deliver a first input power source to a first load at a first bus terminal, and a second eFuse is used to deliver a second input power source to a second load at a second bus terminal. When the current flowing through one eFuse hits its current limit threshold, the other input power source kicks in to provide power support. The current limit threshold of each eFuse is set to be lower than its maximum rated current.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: December 1, 2020
    Assignee: Monolithic Power Systems, Inc.
    Inventors: Ming Lu, Pengjie Lai, Jian Jiang
  • DATACENTER POWER MANIPULATION USING POWER CACHES
    Publication number: 20200371574
    Abstract: Disclosed techniques include power manipulation using power caches within a datacenter. The power caches store power for later use when power demand exceeds the power available. A power source is coupled across a plurality of data racks to a power load within a datacenter. A power cache is coupled to the power load. Power for the power load is provided from the power source. The power cache is enabled to provide power to the power load when power requirements of the power load exceed a power threshold. The power threshold is determined by a set of power policies for the datacenter. The enabling the power cache to provide power to the power load provides power bursting capability.
    Type: Application
    Filed: August 14, 2020
    Publication date: November 26, 2020
    Applicant: Virtual Power Systems, Inc.
    Inventors: Shankar Ramamurthy, Akshay Krishnamoorthy, Martin P. Leslie, Wade Floren Schott, Karimulla Raja Shaikh
  • Power transistor driver with reduced spikes for switching converters
    Patent number: 10840795
    Abstract: A driver for driving a power transistor, the driver having: a first transistor, and a second transistor; wherein (1) when the first transistor is turned on, the second transistor is simultaneously turned on, and wherein after the second transistor remains on for a first time period, the second transistor is turned off for a second time period during when a switching voltage at a second terminal of the power transistor is rising, and the second transistor is turned on after the second time period is over; and (2) when the first transistor is turned off, the second transistor is simultaneously turned off.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: November 17, 2020
    Assignee: Monolithic Power Systems, Inc.
    Inventor: James Nguyen
  • METHODS SYSTEMS AND DEVICES FOR CONTROLLING TEMPERATURE AND HUMIDITY USING EXCESS ENERGY FROM A COMBINED HEAT AND POWER SYSTEM
    Publication number: 20200348045
    Abstract: A combined heat and power system generates energy and efficiently captures a percentage of such energy that would otherwise be lost to, among other things, control the temperature and humidity of a house or dwelling.
    Type: Application
    Filed: May 15, 2020
    Publication date: November 5, 2020
    Applicant: Enginuity Power Systems, Inc.
    Inventors: James Warren, Gregory Powell
  • Cover
    Patent number: D913968
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: March 23, 2021
    Assignee: Layer Zero Power Systems, Inc.
    Inventors: Mijo Dejanovic, Milind Bhanoo, James M Galm