公开(公告)号：US11870432B2

公开(公告)日：2024-01-09

申请号：US17249356

申请日：2021-02-26

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Shusuke Kawai

IPC: H02M1/08 ,  H03K17/284 ,  H02M7/5387 ,  H02P27/08

CPC classification number: H03K17/284 ,  H02M1/08 ,  H02M7/53871 ,  H02P27/08 ,  H03K2217/0063 ,  H03K2217/0072

Abstract: Electronic circuitry includes a control circuit controlling a drive circuit for a semiconductor device; and a delay circuit receiving a first signal instructing the drive circuit to drive the semiconductor device with first driving force and output the first signal to the control circuit. The delay circuit receives a second signal at an interval of a first time or “n” times of the first time after the first signal is received, “n” being an integer greater than or equal to 2, and the second signal instructing the drive circuit to drive the semiconductor device with second driving force, delays outputting of the second signal for a delay time shorter than the first time, and outputs the second signal to the control circuit after the first signal is outputted and further after the first time or “n” times of the first time and the delay time elapses.

公开(公告)号：US11870364B2

公开(公告)日：2024-01-09

申请号：US17596415

申请日：2020-08-05

Applicant: AMBER SOLUTIONS, INC.

Inventor： Mark Telefus

IPC: H02M3/335 ,  H02M7/217 ,  H05B45/50 ,  H05B45/10 ,  H05B45/3725 ,  H02P29/00 ,  H02M1/08 ,  H02M7/06

CPC classification number: H02M7/217 ,  H02M1/08 ,  H02M7/06 ,  H02P29/00 ,  H05B45/10 ,  H05B45/3725 ,  H05B45/50

Abstract: A bidirectional switch and dimmer for the control of power from an AC source to a load is described. The approach uses power MOSFETs in a bidirectional switch subcircuit configuration that includes a floating AC/DC power supply and a solid state double pole switch that alternates between connection of the AC source to the load and periodic connection of the AC source to the AC/DC power supply. The switch and dimmer circuit configuration allows insertion into an existing single-phase circuit using only two wires. The design allows for manufacturing the entire circuit on a single chip.

公开(公告)号：US20230421045A1

公开(公告)日：2023-12-28

申请号：US18367507

申请日：2023-09-13

Applicant: DENSO CORPORATION

Inventor： Yusuke SUGIHARA

IPC: H02M1/08 ,  H02M7/48

CPC classification number: H02M1/08 ,  H02M7/48

Abstract: In a control apparatus, a transfer unit is installed in both low- and high-voltage regions while straddling a boundary between the low- and high-voltage regions. The transfer unit transfers a switching control signal outputted from a control signal generator to the high-voltage region. A controller installed in the high-voltage region performs, based on the control signal, switching control of each of the upper- and lower-arm switches. A distinct-signal generator installed in the low-voltage region generates a distinct signal distinct from the control signal as long as no power-supply anomaly from the power storage unit has occurred, and outputs the distinct signal to the transfer unit. An anomaly determiner is provided in the high-voltage region, and the distinct signal is inputtable to the anomaly determiner through the transfer unit. The anomaly determiner determines whether the power-supply anomaly has occurred based on information on the distinct signal.

公开(公告)号：US11855552B2

公开(公告)日：2023-12-26

申请号：US18160095

申请日：2023-01-26

Applicant: Solaredge Technologies Ltd.

Inventor： Ilan Yoscovich ,  Tzachi Glovinsky ,  Guy Sella ,  Yoav Galin

IPC: H02M7/48 ,  H02M7/483 ,  H02M7/537 ,  H02M1/12 ,  H02M1/00 ,  H02M1/08 ,  H02M1/14

CPC classification number: H02M7/483 ,  H02M1/0095 ,  H02M1/08 ,  H02M1/126 ,  H02M1/143 ,  H02M7/4833 ,  H02M7/4837 ,  H02M7/537 ,  H02M1/0054 ,  H02M7/4835

Abstract: A multi-level inverter having one or more banks, each bank containing a plurality of low voltage MOSFET transistors. A processor configured to switch the plurality of low voltage MOSFET transistors in each bank to switch at multiple times during each cycle.

公开(公告)号：US11855546B2

公开(公告)日：2023-12-26

申请号：US17685440

申请日：2022-03-03

Applicant: SUMIDA CORPORATION

Inventor： Hiroyuki Miyazaki

IPC: H02M3/338 ,  H02M1/08

CPC classification number: H02M3/3388 ,  H02M1/08

Abstract: An output stabilization circuit includes: a primary-side circuit including first and second self-excited oscillator circuits connected to a direct-current power supply; and a secondary-side circuit, wherein the first and second self-excited oscillator circuits include power transmission coils, resonant capacitors, switching element pairs, and feedback coils, the second self-excited oscillator circuit further includes a phase shift filter, the phase shift filter includes a primary-side control coil that is magnetically coupled to a secondary-side control coil included in the secondary-side circuit and that has a characteristic that an inductance changes depending on a current flowing through the secondary-side control coil.

公开(公告)号：US20230402928A1

公开(公告)日：2023-12-14

申请号：US17835963

申请日：2022-06-09

Applicant: INNO-TECH CO., LTD.

Inventor： Shu-Chia Lin ,  Tsu-Huai Chan ,  Chih-Feng Lin

IPC: H02M3/335 ,  H02M1/00 ,  H02M1/08

CPC classification number: H02M3/33569 ,  H02M1/0058 ,  H02M1/08 ,  H02M1/0009

Abstract: Disclosed is a power control system with zero voltage switching including a power controller, a rectification unit, a power unit, a transformer unit, a primary side switch unit, a current sensing unit, an auxiliary switch unit, an output unit, and a current sensing unit for implementing a function of flyback power conversion. The power controller has a power pin, a ground pin, a primary side driving pin, a voltage sensing pin, an auxiliary driving pin, and an auxiliary winding sensing pin, In particular, the auxiliary switch unit is controlled to influence an primary side winding through an auxiliary winding so as to reduce the drain voltage of the primary side switch unit. Further, the primary side switch unit is turned on when the drain voltage is decreased to the lowest value, thereby greatly reducing switching loss and increasing efficiency of power conversion.

公开(公告)号：US11843321B2

公开(公告)日：2023-12-12

申请号：US17534538

申请日：2021-11-24

Applicant: RICHTEK TECHNOLOGY CORPORATION

Inventor： Ta-Yung Yang ,  Wei-Hsu Chang ,  Yu-Chang Chen ,  Tsung-Wei Huang ,  Shui-Mu Lin

IPC: H02M3/335 ,  H02M1/08

CPC classification number: H02M3/33592 ,  H02M1/08

Abstract: A control circuit for controlling a power supply circuit to provide power to a system device which includes a communication circuit includes: a pulse width modulation (PWM) controller configured to switch a transformer of the power supply circuit to generate a first output voltage; and a switched capacitor converter configured to generate a second output voltage according to the first output voltage. The second output voltage provides power to the communication circuit, wherein the communication circuit generates a power saving signal to control the PWM controller and the switched capacitor converter. When the power saving signal is enabled, the first output voltage is decreased and a duty ratio of the switched capacitor converter is increased.

公开(公告)号：US20230396170A1

公开(公告)日：2023-12-07

申请号：US18131788

申请日：2023-04-06

Applicant: ON-BRIGHT ELECTRONICS (SHANGHAI) CO., LTD.

Inventor： PENGLIN YANG ,  XIAOMIN HUANG ,  YUAN LIN ,  YUN SUN

IPC: H02M3/335 ,  H02M1/08 ,  H02M1/36

CPC classification number: H02M3/33523 ,  H02M1/08 ,  H02M1/36 ,  H02M1/44

Abstract: Controller and method for a power converter. For example, the controller includes: a first terminal configured to receive a first voltage; a second terminal connected to a capacitor and biased to a second voltage; a voltage detector configured to receive the second voltage from the second terminal and generate a detection signal based at least in part on the second voltage; a charging controller configured to receive the detection signal and generate a first control signal based at least in part on the detection signal; and a charging current generator configured to receive the first voltage from the first terminal and receive the first control signal from the charging controller; wherein the voltage detector is further configured to: detect that the second voltage has decreased to a first predetermined threshold; and generate the detection signal indicating that the second voltage has decreased to the first predetermined threshold.

公开(公告)号：US11838022B2

公开(公告)日：2023-12-05

申请号：US16704711

申请日：2019-12-05

Applicant: Microsoft Technology Licensing, LLC

Inventor： Kushal Das ,  Alireza Moini ,  David J. Reilly

IPC: G06N10/00 ,  G06F9/448 ,  G06F1/03 ,  G06F9/30 ,  G11C11/44 ,  H03K19/195 ,  H02M1/08 ,  H02M3/07 ,  H10B63/00

CPC classification number: H03K19/1958 ,  G06F1/0321 ,  G06F9/30098 ,  G06F9/4498 ,  G06N10/00 ,  G11C11/44 ,  H02M1/08 ,  H02M3/07 ,  H03K19/195 ,  H10B63/30

Abstract: Systems and methods related to a cryogenic-CMOS interface for controlling qubit gates are provided. A system for controlling qubit gates includes a first device comprising a quantum device including qubit gates. The system further includes a second device comprising a control system configured to operate at the cryogenic temperature. The control system includes charge locking circuits, where each of the charge locking circuits is coupled to at least one qubit gate via an interconnect such that each of the charge locking circuits is configured to provide a voltage signal to at least one qubit gate. The control system further includes a control circuit comprising a finite state machine configured to provide at least one control signal to selectively enable at least one of the charge locking circuits and to selectively enable a provision of a voltage signal to a selected one of the charge locking circuit.

公开(公告)号：US20230387805A1

公开(公告)日：2023-11-30

申请号：US18302982

申请日：2023-04-19

Applicant: Rohm Co., Ltd.

Inventor： Tadashi AKAHO

IPC: H02M3/158 ,  H02M1/08 ,  H02M1/00

CPC classification number: H02M3/1588 ,  H02M1/0009 ,  H02M1/0025 ,  H02M1/08

Abstract: A switching power supply circuit includes an output stage circuit having an output transistor and a synchronous rectification transistor, and generates an output voltage. The switching power supply circuit includes an error amplifier to generate an error voltage corresponding to a difference between a feedback voltage corresponding to the output voltage and a predetermined reference voltage, a slope voltage generation circuit to generate a slope voltage, a comparator to generate a comparison result signal by comparing a first comparison voltage with a second comparison voltage which is the slope voltage or a sum of the slope voltage and a voltage corresponding to the inductor current, a clock signal generation circuit to generate a clock signal, a control drive circuit to control the output stage circuit based on the clock signal and the comparison result signal, and a reverse current detection circuit to detect a reverse current of the inductor current.