Patents Examined by Dru M Parries
  • Patent number: 11611220
    Abstract: A device includes at least one isolating transformer. An input is coupled to the at least one isolating transformer and configured to receive input from an energy source. At least one power switch is coupled to the isolating transformer. A diode is coupled to the at least one isolating transformer. An energy storage medium is coupled to the diode. An inverter includes one or more inverter switches, an inverter input, and an inverter output. The inverter input is coupled to the diode and the energy storage medium. The inverter output is configured to be coupled to the power network, and the inverter is configured to create AC power for distribution to the power network. A controller is configured to modulate the at least one power switch to control power flow from the input and to modulate the state of the inverter switches to control power flow to the power network.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: March 21, 2023
    Assignee: Present Power Systems, LLC
    Inventor: Jason Stuart Katcha
  • Patent number: 11608185
    Abstract: Drive system for an aircraft, including: a propeller; electric motor; transmission system for transmitting positive torque from the motor to drive the propeller and negative torque from the propeller in windmill braking state to drive the motor; interface for inputting an input; first unit for controlling torque acting on the motor; second unit for detecting rotational speed of the motor; selection unit to select an active mode from propulsion mode and recovery mode, wherein the motor generates recovery energy in the recovery mode; and management system to control energy flow in an electrical system of the aircraft, the electrical system including the motor, is controlled according to the active mode; wherein the selection unit is configured to select the active mode according to the input, rotational speed, and predefined envelope, wherein the envelope indicates a maximum positive torque and minimum negative torque that depends on the rotational speed.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: March 21, 2023
    Assignee: Pipistrel Vertical Solutions D.O.O.
    Inventors: David Erzen, Crtomir Gorup, Jure Tomazic
  • Patent number: 11527911
    Abstract: A battery backup system comprises an input terminal configured to receive a source voltage from a power source, and an output terminal electrically coupled to the input terminal and a battery and configured to selectively communicate the source voltage to a load when the source voltage is available and to communicate a battery voltage to the load when the source voltage is unavailable. The battery backup system further comprises a power supply configured to convert the source voltage to a charging voltage and control circuitry electrically coupled to the power supply and the battery and configured to communicate the charging voltage to the battery to facilitate charging the battery when the source voltage is available. The control circuitry is configured to measure one or more parameters of the battery to evaluate battery health.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: December 13, 2022
    Assignee: Appleton Grp LLC
    Inventors: Leon Jr. Dela Cruz Placido, Tristan Toston Estepa, Raymart Gabutan Aurora, Caferino III Gonzales Villadolid
  • Patent number: 11462936
    Abstract: A power supply system with UPS, PCS and circuit diagnosis capabilities is disclosed, including: a DC-bus connected to a voltage/current (V/I) meter, a battery energy storage system (ESS) container, a power conditioning system (PCS), at least one current translation unit, and an energy management controller (EMC), wherein, the V/I meter is used to monitor the voltage and current of the DC-bus, and the PCS performs bi-directional conversion between the DC current from the DC-bus and the AC power from an external distribution panel, the current translation unit translate the DC current from the DC-bus into a voltage suitable for at least a critical load, and the EMC controls the operation of the V/I meter, the battery ESS container, the PCS, and the at least one current translation unit, respectively.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: October 4, 2022
    Assignee: FORTUNE ELECTRIC CO., LTD.
    Inventors: Shou-Hung Welkin Ling, I-Sheng Hsu, Jui-Yang Tsai
  • Patent number: 11374410
    Abstract: The present invention provides a chip comprising a circuit module, a power switch and a detection and control circuit. The power switch is coupled between a supply voltage and the circuit module, and is used to selectively connect the supply voltage to the circuit module, and control a current amount flowing into the circuit module according to at least a control signal. The detection and control circuit is coupled to the power switch, and is used to detect a first signal generated by a first circuit positioned surrounding the circuit module, and compare the first signal with a second signal in a real-time manner to generate the control signal to adjust the current amount flowing into the circuit module.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: June 28, 2022
    Assignee: Silicon Motion, Inc.
    Inventor: Cheng-Kai Huang
  • Patent number: 10756543
    Abstract: Embodiments of the present invention include control methods employed in multiphase distributed energy storage systems that are located behind utility meters typically located at, but not limited to, medium and large commercial and industrial locations. These distributed energy storage systems can operate semi-autonomously, and can be configured to develop energy control solutions for an electric load location based on various data inputs and communicate these energy control solutions to the distributed energy storage systems. In some embodiments, one or more distributed energy storage systems may be used to absorb and/or deliver power to the electric grid in an effort to provide assistance to or correct for power transmission and distribution problems found on the electric grid outside of an electric load location. In some cases, two or more distributed energy storage systems are used to form a controlled and coordinated response to the problems seen on the electric grid.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: August 25, 2020
    Assignee: Stem, Inc.
    Inventors: James W. Detmers, Ben Kearns, Jon Burlinson, Drew Stevens
  • Patent number: 8183713
    Abstract: In a particular illustrative embodiment, a system is disclosed that includes a first power domain that is responsive to a first power switching circuit and a second power domain that is responsive to a second power switching circuit. The system also includes a logic circuit adapted to selectively activate the first power switching circuit and the second power switching circuit. At least one of the first power switching circuit and the second power switching circuit includes a first set of transistors adapted for activation during a first power up stage and a second set of transistors adapted for activation during a second power up stage after at least one of the first set of transistors are activated.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: May 22, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Hari Rao, Nan Chen, Ritu Chaba
  • Patent number: 8026630
    Abstract: A system and method for supplying voltage to electrical loads in the onboard electrical system of a motor vehicle are provided. The onboard electrical system consists of at least two onboard electrical system regions. The first onboard electrical system region has an electric generator, a vehicle battery, as well as one or more first electrical loads. The second onboard electrical system region has a double-layer capacitor or a so-called supercap and one or more second electrical loads. Between the two onboard electrical system regions, a blocking device is provided, in particular, a semiconductor diode or a power switch, which permits a current flow from the first onboard electrical system region into the second electrical system region and largely prevents a reverse current flow from the second onboard electrical system region into the first onboard electrical system region.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: September 27, 2011
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Andreas Broesse, Dieter Polenov, Hartmut Proebstle, Markus Fuchs, Michael Roesler, Maximilian Schmidl
  • Patent number: 8022569
    Abstract: Systems and methods are provided for discharging a high-voltage bus using semiconductor devices. A discharge system for a first voltage rail and a second voltage rail comprises a first semiconductor device coupled to a first voltage rail and a second semiconductor device coupled between the first semiconductor device and a second voltage rail. A control circuit is coupled to the first semiconductor device and the second semiconductor device. In response to a discharge condition, the control circuit is configured to activate the first semiconductor device and gradually activate the second semiconductor device, such that the energy potential between the first voltage rail and the second voltage rail is gradually dissipated through the semiconductor devices.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: September 20, 2011
    Assignee: GM Global Technology Operations LLC
    Inventors: Keming Chen, Christopher P. Henze, Stephen Raiser, George R. Woody
  • Patent number: 8008804
    Abstract: Featured are methods for regulating the AC frequency of the electrical power be supplied on an electrical distribution system or grid. Such a method includes electrically coupling an energy storage sub-system to the electrical distribution network, where the energy storage sub-system includes one or more flywheel energy storage systems. Also featured as devices, systems and apparatuses embodying such methodologies or for use in implementing such methodologies of the present invention.
    Type: Grant
    Filed: August 16, 2004
    Date of Patent: August 30, 2011
    Assignee: Beacon Power Corporation
    Inventors: F. William Capp, Matthew L. Lazarewicz, A. James Arseneaux, Paul Dresens, Hernan Alex Rojas
  • Patent number: 8004114
    Abstract: A two-stage power supply system includes a standby power circuit, a main power circuit, a driver and, a rectifier. Moreover, the standby power circuit is used to convert a utility AC (Alternating Current; AC) into a standby AC. The main power circuit is used to convert the utility AC into a main AC. Furthermore, the driver is coupled to the main power circuit so as to control whether or not the main power circuit outputs the main AC to the rectifier. Finally, the rectifier is coupled to the standby power circuit, the main power circuit, and a load, wherein the rectifier rectifies the standby AC alone for outputting a standby DC (Direct Current; DC) to the load, or rectifies an integrated AC of the standby AC and the main AC for outputting a supply DC to the load.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: August 23, 2011
    Assignee: Powertech Industrial Co., Ltd.
    Inventors: Yu-Lung Lee, Tsong-Hwa Chen, Kuo-Tian Cheng
  • Patent number: 7989981
    Abstract: A power adaptor and storage unit is configured to simultaneously provide power to a portable electronic device and to a portable power module. In some cases, the portable power module is integrated into the power adaptor. The power adaptor receives power unusable by the electronic device, converts it to a usable form, stores some of the converted power if possible, and supplies the power to the device.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: August 2, 2011
    Assignee: Flextronics AP, LLC
    Inventor: Xiaoyang Zhang
  • Patent number: 7982340
    Abstract: The present invention is an energy generating system for a telecommunications megasite which uses fuel cells and capacitors to backup a commercially available primary source of power.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: July 19, 2011
    Assignee: Sprint Communications Company L.P.
    Inventors: Jerry Meyers, Julie A. Willets, Larry L. Johnson
  • Patent number: 7982332
    Abstract: A power device for use in a vehicle includes a housing, a voltage converter, and a charge-storing device. The housing carries the voltage converter and the charge-storing device. The voltage converter includes a circuit that converts a power signal having a first voltage level to a second voltage level. The charge-storing device electrically couples with the voltage converter and stores the power signal having the second voltage level.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: July 19, 2011
    Assignees: Chrysler Group LLC, Daimler AG
    Inventors: Jody J. Nelson, Franz Nietfeld
  • Patent number: 7982341
    Abstract: A control portion 80 for a breaker 10 causes the breaker 10 to apply a current of a first apply phase (R phase) at a timing where a residual flux of R phase agrees with a steady magnetic flux. Thereafter, the control portion 80 determines whether or not the current measured by current measuring portions 40R, 40S, 40T exceeds a threshold value. When the measured current does not exceed the threshold value, the control portion 80 causes the breaker 10 to apply currents of the other two phases (S and T phases) at a timing where a voltage of R phase becomes zero. When the measured current exceeds the threshold value, the control portion 80 causes the breaker 10 to once shut off the current of R phase and to apply again the current of R phase.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: July 19, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Sadayuki Kinoshita, Kenji Kamei, Tomohito Mori
  • Patent number: 7977818
    Abstract: An apparatus and system for preventing branch circuit current overload in a non-dedicated branch circuit where current is supplied at least in part by a co-generation power system through an electrical receptacle or outlet. Co-generation systems of this type are typically used in residential applications and can include solar photovoltaic systems and wind turbines. The apparatus modulates or adjusts the current flowing into the branch circuit from the co-generation power system so that the apparatus does not cause the combination of current supplied from the utility power grid into the branch circuit and current supplied by the co-generation system into the branch circuit outlet to exceed the branch circuit current capacity.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: July 12, 2011
    Inventor: Eric R. Wahl
  • Patent number: 7973429
    Abstract: An apparatus includes two DC/DC converters including two conversion circuits for converting a power supply voltage to first and second output voltages, respectively, two driving circuits for driving the respective conversion circuit based on first and second pulse wave modulated signals, and two pulse width modulation circuits for performing pulse width modulation on a thinned wave signal formed from a first wave signal and on a second wave signal to generate the pulse wave modulated signals, respectively. One DC/DC converter includes a thinning circuit for removing portions of a first wave signal to form the thinned wave signal. The apparatus includes a speaker for generating sound by inputting a signal based on the voltages.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: July 5, 2011
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Naoki Oda
  • Patent number: 7964985
    Abstract: When an ignition key is turn ON, an ECU drives a bidirectional DC/DC converter to charge a capacitor to a voltage Vth1. The ECU turns on a first relay only and diagnoses whether or not a second relay, which is off, is welded, based on a change in a voltage VL at that time. After the diagnosis on welding, the ECU turns on the second relay, and the capacitor is charged to a voltage level of a main power storage device.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: June 21, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masahito Ozaki, Kenji Uchida, Hisato Nishida
  • Patent number: 7960859
    Abstract: An automatic sensing power system automatically determines a power requirement for an electrical device, converts power to the required level, and outputs the power to the electrical device when the electrical device is connected to the automatic sensing power system.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: June 14, 2011
    Assignee: Green Plug, Inc.
    Inventors: Gregory W. Menas, Brent A. Miller, Steve Spano
  • Patent number: 7956497
    Abstract: An electret device includes an electret film into which charges are injected and a barrier film provided on a surface of the electret film and having an electron affinity smaller than the electron affinity of the electret film.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: June 7, 2011
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Yoshiki Murayama, Naoteru Matsubara, Katsuji Mabuchi