Patents Examined by Sisay G Tiku
  • Patent number: 11996257
    Abstract: A circuit interrupter including a line conductor, a printed-circuit board, and a test circuit. The printed-circuit board coil is embedded on a printed circuit board. The printed circuit board includes a slot through the printed-circuit board coil, wherein the line conductor is received by the printed-circuit board coil. The test circuit is electrically connected to the printed-circuit board coil. The test circuit is configured to determine a condition of the line conductor based on a signal of the printed-circuit board coil.
    Type: Grant
    Filed: November 11, 2022
    Date of Patent: May 28, 2024
    Assignee: Hubbell Incorporated
    Inventor: John E. Brower
  • Patent number: 11996782
    Abstract: The method of controlling power transmission to a load permits: to eliminate over-voltage in an electric circuit; to decrease energy losses and time of charging of an energy storing device; to increase service life of switches and provide very high reliability of power transmission to a load. The conception is following: controlling power transmission to a load from additional circuit so that current can be transferred from additional circuit to operating circuit (circuit with a load) and vice versa from operating circuit to additional circuit without interruption (without switching off) circuit of the load.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: May 28, 2024
    Inventor: Manvel Zakharian
  • Patent number: 11990898
    Abstract: In accordance with at least one aspect of this disclosure, an isolated drive (e.g., for a generator controller) includes a gate driver configured to operatively connect to a switch to drive the switch between a first state and a second state, a transformer configured to power the gate driver and provide an ON/OFF signal to the gate driver, an input line configured to connect a first side of the transformer to the gate driver, and a floating return line configured to connect a second side of the transformer directly to a source terminal of the switch such that parasitic currents from the transformer and/or drive circuit bypasses the gate driver and flows to the floating return line.
    Type: Grant
    Filed: February 23, 2022
    Date of Patent: May 21, 2024
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Francisco X. Romo, Christopher D. Thornton
  • Patent number: 11979021
    Abstract: A power converter for a power system performs power control of a power system by using a first control value derived based on a first stabilization command value for causing a voltage on a first DC bus to be within a first range and a first control command value different from the first stabilization command value. A power converter for a solar cell performs power control of a solar cell by using a second control value derived based on a second stabilization command value for causing a voltage on a second DC bus to be within a second range and a second control command value different from the second stabilization command value. The first range is narrower than the second range.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: May 7, 2024
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Akira Yoshitake, Tomomi Kato, Takuya Karikawa, Yoshinori Noritake
  • Patent number: 11973140
    Abstract: It is provided a driving system, a driving method, a computer system and a computer readable medium. The driving system includes: an input circuit configured to receive an input on-chip voltage and output the on-chip voltage; an adjusting circuit configured to automatically detect a present amplitude of the on-chip voltage output by the input circuit and to output a bias voltage corresponding to the present amplitude of the on-chip voltage to a gate of the driven thin film transistor, wherein a source of the thin film transistor is directly or indirectly coupled to the on-chip voltage, and the bias voltage is lower than the on-chip voltage. The protection of the transistor gate and the adjusting of a receiver threshold voltage for different I/O (input/output) voltages and levels can be completed through automatic detection of the on-chip voltage and automatic adjusting.
    Type: Grant
    Filed: January 5, 2022
    Date of Patent: April 30, 2024
    Assignees: HAINING ESWIN IC DESIGN CO., LTD., BEIJING ESWIN COMPUTING TECHNOLOGY CO., LTD.
    Inventors: Chiajen Wei, Leung Yu, Shuqi Wei
  • Patent number: 11966241
    Abstract: A circuit includes a voltage divider circuit configured to generate a feedback voltage according to an output voltage, an operational amplifier configured to output a driving signal according to the feedback voltage and a reference voltage and a pass gate circuit including multiple current paths. The current paths are controlled by the driving signal and connected in parallel between the voltage divider circuit and a power reference node.
    Type: Grant
    Filed: February 11, 2022
    Date of Patent: April 23, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Huan-Neng Chen, Yen-Lin Liu, Chia-Wei Hsu, Jo-Yu Wu, Chang-Fen Hu, Shao-Yu Li, Bo-Ting Chen
  • Patent number: 11968810
    Abstract: A power module for operating an electric vehicle drive may include one or more of the following: a plurality of semiconductor components; an intermediate circuit capacitor connected in parallel to the semiconductor components; a heatsink for the removal of heat generated by the semiconductor components, where the heatsink is located between the semiconductor components and the intermediate circuit capacitor; and an intermediate circuit line that electrically connects the intermediate circuit capacitor to the semiconductor components. The intermediate circuit line may extend perpendicular to a direction of flow for the coolant in the heatsink on a side of the semiconductor components facing away from the heatsink.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: April 23, 2024
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Ake Ewald, Michael Sperber, Stefan Hain
  • Patent number: 11966244
    Abstract: An power supply circuit includes: a plurality of Zener diodes (ZD) between which cascade connection is established and which are connected in parallel to a load (10) to which power is supplied from a power supply line; switches (SW) on which ON/OFF control is performed, which are connected in parallel to one of the plurality of Zener diodes or between the plurality of Zener diodes, and which form current paths when ON control is performed on the switches; a current monitoring means (2) for monitoring current that is flowing in one of the plurality of Zener diodes; a comparison means (4) for comparing a reference current (3) and the current monitored by the current monitoring means; and a control means (5) for performing ON/OFF control on the switches on the basis of the result of the comparison by the comparison means.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: April 23, 2024
    Assignee: NEC CORPORATION
    Inventor: Narihiro Arai
  • Patent number: 11966246
    Abstract: An electronic circuit includes a first transistor coupled between a first node and a supply voltage and controlled by a first node, a second transistor coupled between a second node and the supply voltage and controlled by the first node, a third transistor coupled between a third node and the supply voltage and controlled by a fourth node, a fourth transistor coupled between the fourth node and the supply voltage and controlled by the fourth node, a fifth transistor coupled between the first node and the fifth node and controlled by a reference voltage, a sixth transistor coupled between the second node and a ground and controlled by the third node, a seventh transistor coupled between the fourth node and the ground and controlled by the second node, a first resistor coupled the fourth node to the ground, and a second resistor coupled to the fifth node.
    Type: Grant
    Filed: March 1, 2022
    Date of Patent: April 23, 2024
    Assignee: RICHTEK TECHNOLOGY CORPORATION
    Inventors: Chia-Tseng Chiang, Hao-Yu Li
  • Patent number: 11955955
    Abstract: A circuit includes power supply and reference nodes, a protection circuit including a first output terminal and first and second series of n-type HEMTs coupled between the power supply and reference nodes, and a gate driver including a second output terminal and third through fifth series of n-type HEMTs coupled between the power supply and reference nodes. The first HEMT series controls a first node voltage responsive to a power supply node voltage, the second HEMT series controls a first output terminal voltage responsive to the first node voltage, the third HEMT series controls an internal signal on a second node responsive to the first output terminal voltage and to an input signal, the fourth HEMT series controls a third node voltage responsive to the internal signal, and the fifth HEMT series controls a signal at the second output terminal responsive to the internal signal and the third node voltage.
    Type: Grant
    Filed: May 4, 2023
    Date of Patent: April 9, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventor: Ming Hsien Tsai
  • Patent number: 11955889
    Abstract: A buck voltage regulator device comprises a coupled inductor, a high-side switch electrically connected between an electrical energy source and a primary winding of the coupled inductor, a first low-side switch electrically connected between the primary winding and a ground node, a second low-side switch electrically connected between an auxiliary winding of the coupled inductor and the ground node, a first output node electrically connected to the primary winding, a second output node electrically connected to the auxiliary winding, a first output storage capacitor electrically connected to the primary winding between the first output node and the ground node, and a second output storage capacitor electrically connected to the auxiliary winding and between the second output node and the ground node.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: April 9, 2024
    Assignee: The Boeing Company
    Inventor: Robert M. Martinelli
  • Patent number: 11955903
    Abstract: A rectification and boost-buck control system for alternating current, includes a processor, a commutation detection circuit, a chopper circuit and a switch circuit. The chopper circuit includes upper bridge elements connected to corresponding phases of the alternating current. The switch circuit includes lower bridge elements connected to the upper bridge elements. The commutation detection circuit is configured to detect commutation signals. Based on the communication signals and current output current and/or current rectified voltage, the processor is capable of outputting a conduction angle control signal to the chopper circuit and output a switch control signal to the switch circuit to adjust on-off time of the chopper circuit and the switch circuit to thereby adjust the current output current and/or the current rectified voltage.
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: April 9, 2024
    Assignee: SHENZHEN DOSO TECHNOLOGY LTD.
    Inventor: Jun Wu
  • Patent number: 11947373
    Abstract: The present disclosure provide an electronic device. The electronic device includes a voltage generator and a low drop-out (LDO) circuit. The voltage generator has an input and an output. The LDO circuit has an input electrically connected to the output of the voltage generator. The voltage generator includes a first voltage regulator having a first terminal and a second terminal. The first terminal of the first voltage regulator is electrically connected to the output of the voltage generator.
    Type: Grant
    Filed: January 13, 2022
    Date of Patent: April 2, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Yu-Tso Lin, Min-Shueh Yuan
  • Patent number: 11940473
    Abstract: The present disclosure relates to an apparatus and method for compensating for an offset in switching current sensing in an improved method using a Rogowski coil and an Op-amp. According to the present disclosure, when a Rogowski current sensor and an Op-Amp integrator are used to sense a switching current of a motor driving inverter, a DC-DC converter, or the like, the fact that an offset value of an output of the integrator varies depending on a duty value of a pulse-width modulation (PWM) control signal is used, so that offset calibration software is applied to automatically generate an offset value table at the beginning of power up of a controller and compensate for a sensed value of the current in real time by referring to the value. As a result, there is no need to perform conventional manual tuning.
    Type: Grant
    Filed: December 2, 2021
    Date of Patent: March 26, 2024
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventor: Sang Min Kim
  • Patent number: 11936175
    Abstract: A reverse power connection preventing circuit includes a diode and an actuation unit that are connected in series between a positive input terminal and a negative input terminal of a circuit breaker. A positive electrode of the diode points to the negative input terminal of the circuit breaker, and a negative electrode of the diode points to the positive input terminal of the circuit breaker. When a power supply is forward connected to the circuit breaker, the diode is cut off, there is no current on the actuation unit, and the reverse power connection preventing circuit is in a power-off state. When the power supply is reversely connected to the circuit breaker, the diode conducts, and the actuation unit is configured to prevent closing of the circuit breaker, and/or the actuation unit is configured to perform an alarm prompt, to perform an early warning.
    Type: Grant
    Filed: July 15, 2022
    Date of Patent: March 19, 2024
    Assignee: Huawei Digital Power Technologies Co., Ltd.
    Inventors: Zezhou Yang, Xiaoke Ran, Wanxiang Ye, Liqiong Yi
  • Patent number: 11936297
    Abstract: A DC-DC converter outputs a DC output voltage between first and second output terminals, and includes: a conversion circuit that outputs an intermediate voltage obtained by performing power conversion on an input voltage, between first and second intermediate terminals; a first coil provided between the first intermediate terminal and the first output terminal; and a diode provided in series with a second coil. A DC voltage is applied to the second coil and the diode, with a polarity in a direction in which a reverse bias is applied to the diode. The first coil and the second coil are magnetically coupled such that a current is made flow through the second coil in a forward direction of the diode by mutual induction as a current flowing through the first coil in a direction from the first intermediate terminal to the first output terminal increases.
    Type: Grant
    Filed: January 27, 2022
    Date of Patent: March 19, 2024
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Hiroyuki Hosoi
  • Patent number: 11929668
    Abstract: In the present invention, when a DC reactor is in a magnetically saturated state, the on/off operations of a switching element are suspended and the switching element is set to an off state for a predetermined period of time, thereby resetting the magnetic saturation of the DC reactor and maintaining the supply of power to a load. After resetting the magnetic saturation, the pulse output of the normal pulse mode is restarted.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: March 12, 2024
    Assignee: KYOSAN ELECTRIC MFG. CO., LTD.
    Inventors: Itsuo Yuzurihara, Toshiyuki Adachi, Tomohiro Yoneyama, Koichi Miyazaki
  • Patent number: 11927975
    Abstract: A switch circuit includes: a switch coupled to control an electrical parameter of a main circuit. A. PSRR of the main circuit is determined by the switch; a first driver configured to operably drive the switch, wherein the first driver is powered by a supply current; and a supply transistor configured to operably generate the supply current, wherein the supply transistor is biased in a subthreshold region, such that the PSRR of the main circuit is higher than a predetermined level within a predetermined frequency range.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: March 12, 2024
    Assignee: PIXART IMAGING INCORPORATION
    Inventor: Chuang-Shen Voo
  • Patent number: 11923796
    Abstract: An apparatus for switching and/or protection of a load connected to said apparatus, said apparatus (1) comprising: a power switch (5) through which the connected load receives an electrical current; a sensor component (4) connected in series with said power switch (5) and adapted to generate directly an electrical voltage drop corresponding to a current rise speed of the electrical current flowing via the sensor component (4) and via the power switch (5) to said load; and a driver circuit (6) adapted to detect an occurring overcurrent depending on a voltage drop generated by said sensor component (4) with or without a voltage drop along the power switch (5) and to switch off said power switch (5) upon detection of an overcurrent within a switch-off period to protect said power switch (5) and said load.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: March 5, 2024
    Assignee: Future Systems Besitz GmbH
    Inventors: Philipp Steinberger, Hubert Lenker, Peter Spiel
  • Patent number: 11923764
    Abstract: In one example, a circuit comprises: a controller, an electrostatic discharge (ESD) circuit, and a driver circuit. The controller has a driver control output. The ESD circuit has a driver control input and an ESD output, the driver control input coupled to the driver control output. The driver circuit has a driver input and a driver output, the driver input coupled to the ESD output.
    Type: Grant
    Filed: August 10, 2022
    Date of Patent: March 5, 2024
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Liang Zhang