Patents Examined by Sisay G Tiku
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Patent number: 11973140Abstract: 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: GrantFiled: January 5, 2022Date of Patent: April 30, 2024Assignees: HAINING ESWIN IC DESIGN CO., LTD., BEIJING ESWIN COMPUTING TECHNOLOGY CO., LTD.Inventors: Chiajen Wei, Leung Yu, Shuqi Wei
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Patent number: 11968810Abstract: 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: GrantFiled: December 16, 2021Date of Patent: April 23, 2024Assignee: ZF FRIEDRICHSHAFEN AGInventors: Ake Ewald, Michael Sperber, Stefan Hain
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Patent number: 11966244Abstract: 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: GrantFiled: February 13, 2020Date of Patent: April 23, 2024Assignee: NEC CORPORATIONInventor: Narihiro Arai
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Patent number: 11966246Abstract: 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: GrantFiled: March 1, 2022Date of Patent: April 23, 2024Assignee: RICHTEK TECHNOLOGY CORPORATIONInventors: Chia-Tseng Chiang, Hao-Yu Li
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Patent number: 11966241Abstract: 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: GrantFiled: February 11, 2022Date of Patent: April 23, 2024Assignee: 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
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Patent number: 11955889Abstract: 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: GrantFiled: September 28, 2021Date of Patent: April 9, 2024Assignee: The Boeing CompanyInventor: Robert M. Martinelli
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Patent number: 11955955Abstract: 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: GrantFiled: May 4, 2023Date of Patent: April 9, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventor: Ming Hsien Tsai
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Patent number: 11955903Abstract: 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: GrantFiled: September 16, 2021Date of Patent: April 9, 2024Assignee: SHENZHEN DOSO TECHNOLOGY LTD.Inventor: Jun Wu
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Patent number: 11947373Abstract: 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: GrantFiled: January 13, 2022Date of Patent: April 2, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.Inventors: Yu-Tso Lin, Min-Shueh Yuan
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Patent number: 11940473Abstract: 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: GrantFiled: December 2, 2021Date of Patent: March 26, 2024Assignee: HYUNDAI MOBIS CO., LTD.Inventor: Sang Min Kim
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Patent number: 11936297Abstract: 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: GrantFiled: January 27, 2022Date of Patent: March 19, 2024Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventor: Hiroyuki Hosoi
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Patent number: 11936175Abstract: 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: GrantFiled: July 15, 2022Date of Patent: March 19, 2024Assignee: Huawei Digital Power Technologies Co., Ltd.Inventors: Zezhou Yang, Xiaoke Ran, Wanxiang Ye, Liqiong Yi
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Patent number: 11929668Abstract: 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: GrantFiled: November 8, 2019Date of Patent: March 12, 2024Assignee: KYOSAN ELECTRIC MFG. CO., LTD.Inventors: Itsuo Yuzurihara, Toshiyuki Adachi, Tomohiro Yoneyama, Koichi Miyazaki
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Patent number: 11927975Abstract: 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: GrantFiled: November 30, 2021Date of Patent: March 12, 2024Assignee: PIXART IMAGING INCORPORATIONInventor: Chuang-Shen Voo
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Patent number: 11923764Abstract: 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: GrantFiled: August 10, 2022Date of Patent: March 5, 2024Assignee: TEXAS INSTRUMENTS INCORPORATEDInventor: Liang Zhang
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Patent number: 11923758Abstract: A power conversion circuit includes an input positive terminal, an input negative terminal, an output positive terminal, an output negative terminal, a first bridge arm, a second bridge arm, a transformer, a first resonant capacitor, a second resonant capacitor, a third resonant capacitor and a third resonant capacitor. The transformer includes a first winding, a second winding and a third winding. The plurality of switches in the first bridge arm and the plurality of switches in the second bridge arm are selectively turned on or turned off. The ratio of the input voltage to the output voltage can be adjustable by changing the turn numbers of the first winding, the second winding and the third winding.Type: GrantFiled: January 21, 2022Date of Patent: March 5, 2024Assignee: DELTA ELECTRONICS, INC.Inventors: Da Jin, Zhengyu Ye, Xueliang Chang, Shengli Lu
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Patent number: 11923677Abstract: An approach is disclosed for assisting a user with configuring an integrated circuit in one or more boards with a customizable construction. A user interface (UI) is provided that allows a user to specify inputs to an apparatus. The apparatus being an enclosure for integrating attachable modular customizable solar energy components and where the components are coupled to the integrated circuit. The apparatus supports connecting user customizable plug and play components to the integrated circuit. Responsive to the user utilizing the UI by specifying inputs, the UI identifies requirements for overcurrent protection elements in the apparatus at a location in the apparatus where an overcurrent protection element meeting the requirements is inserted.Type: GrantFiled: January 14, 2021Date of Patent: March 5, 2024Inventor: Joseph M. DeLapa, II
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Patent number: 11923765Abstract: Circuits and methods for protecting a multi-level power converter using no more than two high-voltage FET switches while allowing all or most other power switches to be low-voltage FET switches. Some embodiments provide protective high-voltage top and bottom FETs designed to saturate before the remaining low-power FET switches saturate. Other embodiments may use only low-power FETs for the power switches but provide protective circuits configured to be in an always-ON (conducting) state when in normal power conversion operation, and to quickly switch to an OFF (non-conducting) state in the event of transients or a fault condition. Optionally, one or more of the protective circuits may be used in a controlled manner to limit or block current flow during certain types of fault conditions and/or to limit in-rush current during startup of a power converter.Type: GrantFiled: December 23, 2021Date of Patent: March 5, 2024Assignee: pSemi CorporationInventor: Gregory Szczeszynski
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Patent number: 11923796Abstract: 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: GrantFiled: February 20, 2020Date of Patent: March 5, 2024Assignee: Future Systems Besitz GmbHInventors: Philipp Steinberger, Hubert Lenker, Peter Spiel
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Patent number: 11920902Abstract: A method of delivering charge to a remote target includes pressurizing a reservoir of metallic conductor initially at a temperature below its melting point. The method includes flowing the metallic conductor through an orifice to form a continuous thread with axial velocity, so that a user might direct the axial velocity of the thread to intercept the remote target. The method further includes applying a potential differential along the thread so that electrical current flows between the reservoir and the remote target.Type: GrantFiled: November 11, 2019Date of Patent: March 5, 2024Assignee: Convey Technology, Inc.Inventor: J. Samuel Batchelder