公开(公告)号：US20240333163A1

公开(公告)日：2024-10-03

申请号：US18689093

申请日：2021-09-06

Applicant: SHENZHEN UU GREEN POWER CO., LTD.

Inventor： Jianxiong Zheng ,  Jianguo Bai ,  Likuan Deng

IPC: H02M3/335 ,  H02M1/00

CPC classification number: H02M3/33515 ,  H02M1/0032 ,  H02M1/0048 ,  H02M3/33523

Abstract: Disclosed is an auxiliary power source circuit having an ultra-low standby power consumption, including a transformer, a PWM control chip, a battery power source, a first switch tube, a voltage division adjustment module, adjustment modules, and a control module. The control module selects an under-charge voltage of the battery on the basis of the minimum under-charge voltage of the battery and a power source voltage of the battery. Module parameters of the adjustment modules are adjusted, such that the power supply time of the control module can last until a power supply voltage of the PWM control chip is dropped. Therefore, an auxiliary power source circuit can be prevented from frequently performing self-start-up, thereby truly reducing the standby power consumption of a system and greatly reducing the current loss.

公开(公告)号：US20240322674A1

公开(公告)日：2024-09-26

申请号：US18731957

申请日：2024-06-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyomin AHN ,  Youngjae PARK ,  Junghyun LEE ,  Taeho LEE ,  Jehyung CHO

IPC: H02M1/42 ,  H02M1/00 ,  H02M7/06

CPC classification number: H02M1/4291 ,  H02M1/0048 ,  H02M7/06

Abstract: A home appliance for controlling a harmonic magnitude includes a current sensor configured to detect an input current of a power source, and at least one processor, and the at least one processor is configured to obtain a harmonic component from the input current detected by the current sensor, determine a length of a non-conducting interval of a switch so that a magnitude of the obtained harmonic component is less than a predetermined harmonic reference value, and generate a current reference value corresponding to the determined length of the non-conducting interval.

公开(公告)号：US20240235238A9

公开(公告)日：2024-07-11

申请号：US18240482

申请日：2023-08-31

Applicant: Delta Electronics (Shanghai) Co., Ltd.

Inventor： Tengshen Zhang ,  Jinfa Zhang ,  Linfeng Zhong ,  Changyong Wang ,  Yafeng Wang

IPC: H02J7/00 ,  H02M1/00 ,  H02M3/00 ,  H02M3/07 ,  H02M3/335

CPC classification number: H02J7/00714 ,  H02J7/0013 ,  H02M1/0048 ,  H02M1/0067 ,  H02M1/0095 ,  H02M3/01 ,  H02M3/07 ,  H02M3/33571 ,  H02M3/33584 ,  H02J2207/20

Abstract: An energy storage module includes a bus connection part, a battery pack, a capacitor and a series compensation DC conversion device. A first conduction terminal of the series compensation DC conversion device is electrically connected with a positive bus connection terminal and a negative bus connection terminal of the bus connection part, or the first conduction terminal is connected with a battery positive terminal and a battery negative terminal of the battery pack. A second conduction terminal of the series compensation DC conversion device is electrically connected with two terminals of the capacitor. A four-quadrant DC/DC converter of the series compensation DC conversion device controls the capacitor to generate a compensation voltage to compensate a voltage between the two terminals of the battery pack, or the four-quadrant DC/DC converter adjusts a current flowing through the battery pack to a set value.

公开(公告)号：US20240178739A1

公开(公告)日：2024-05-30

申请号：US18520906

申请日：2023-11-28

Applicant: ABB Schweiz AG

Inventor： Veli-Matti Leppänen ,  Peter Muszynski

IPC: H02M1/00 ,  H02M7/487

CPC classification number: H02M1/0048 ,  H02M7/487

Abstract: A control apparatus for ARCP (Auxiliary Resonant Commuted Pole) power inverters include a modulator and a modulation control. The modulator is configured to carry out a commutation of an ARCP inverter by selectively using a Continuous PWM (CPWM) modulation and a Discontinuous PWM (DPWM) modulation. The modulation control is configured to dynamically select either the CPWM modulation or the DPWM modulation in a such a way that switching losses of the ARCP inverter are reduced while a failure of the commutation of the ARCP inverter due to a neutral point voltage unbalance of the ARCP inverter is avoided.

公开(公告)号：US11901820B2

公开(公告)日：2024-02-13

申请号：US17710066

申请日：2022-03-31

Applicant: CHICONY POWER TECHNOLOGY CO., LTD.

Inventor： Tso-Jen Peng ,  Ssu-Hao Wang

IPC: H02M3/158 ,  H02M1/00

CPC classification number: H02M3/1582 ,  H02M1/0003 ,  H02M1/0048

Abstract: A power supply apparatus with step-up and step-down conversion includes a primary-side rectifying/filtering circuit, a step-up converter, a full-bridge LLC converter, a primary-side controller, a secondary-side rectifying/filtering circuit, a voltage regulator, and a secondary-side controller. The primary-side rectifying/filtering circuit rectifies and filters an AC input voltage into a DC input voltage. The primary-side controller controls the step-up converter to step up the DC input voltage to a step-up voltage, and controls the full-bridge LLC converter to convert the step-up voltage to a conversion voltage. The secondary-side rectifying/filtering circuit rectifies and filters the conversion voltage into a DC output voltage. The secondary-side controller controls the primary-side controller to provide the step-up control signal and the conversion control signal and provides a voltage regulation signal to control the voltage regulator so as to regulate the DC output voltage to an output voltage for supplying power to the load.

公开(公告)号：US11881761B2

公开(公告)日：2024-01-23

申请号：US18297706

申请日：2023-04-10

Applicant: TAE Technologies, Inc.

Inventor： Mikhail Slepchenkov

IPC: H02M1/12 ,  H02M3/156 ,  H03K17/567 ,  H02M1/00

CPC classification number: H02M1/12 ,  H02M3/156 ,  H03K17/567 ,  H02M1/0048

Abstract: Systems and methods that facilitate multilevel hysteresis voltage control methods for cascaded multilevel voltage modulators having a plurality of power cells connected in series and has any positive integer number of output voltage levels to control any unipolar voltage on the load of the voltage modulator, and transfer electrical power from an electrical grid via AC/DC converters or directly from energy storage elements of the power cells to that load. A method of operational rotation of the power cells of a multilevel voltage modulator, which ensures an equal power sharing among the power cells and voltage balancing of the energy storage elements of the power cells of the modulator.

公开(公告)号：US20230387810A1

公开(公告)日：2023-11-30

申请号：US17664758

申请日：2022-05-24

Applicant: Astec International Limited

Inventor： James Sigamani ,  Jonathan Ross B. Fauni ,  Rochie Sedillo Libby

IPC: H02M3/335 ,  H01F27/24 ,  H01F27/30 ,  H02M1/00

CPC classification number: H02M3/33569 ,  H01F27/24 ,  H01F27/306 ,  H02M1/0048

Abstract: A voltage transformer comprises a multi-limb transformer core having a central limb, a first outer limb, and a second outer limb. The voltage transformer also comprises a first primary winding wound about the central limb, a second primary winding wound about the central limb, a first secondary winding wound about the central limb, and a second secondary winding wound about the central limb. A first balance winding is wound about the first outer limb and coupled in series with the first primary winding, and a second balance winding is wound about the second outer limb and coupled in series with the second primary winding. The first and second balance windings are coupleable together via mutual inductance in response to first and second currents flowing therethrough.

公开(公告)号：US20230369988A1

公开(公告)日：2023-11-16

申请号：US18026111

申请日：2020-09-18

Applicant: HITACHI MITSUBISHI HYDRO CORPORATION ,  HITACHI, LTD.

Inventor： Akira BANDO ,  Takahiko KIKUI ,  Kenta WATANABE ,  Tomomichi ITO ,  Yasuhiro KIYOFUJI ,  Masakazu ISHIKAWA ,  Yosuke NAKAIDE

IPC: H02M7/483 ,  H02M1/32 ,  H02M1/00

CPC classification number: H02M7/4835 ,  H02M1/32 ,  H02M1/0048

Abstract: A modular multilevel power converter includes: a capacitor voltage adjuster that calculates an active current component command to make an average voltage of capacitors match a command value; an active power detector that receives an AC current signal and an AC voltage signal and calculates an active power; an active power adjuster that calculates a DC current command value to make the active power match a command value; a first active power command suppressor that suppresses an absolute value of an active power command value; and a second active power command suppressor that adjusts an absolute value of an active power command value.

公开(公告)号：US11757373B2

公开(公告)日：2023-09-12

申请号：US17339279

申请日：2021-06-04

Applicant: DENSO CORPORATION

Inventor： Yoshimitsu Takahashi ,  Makoto Taniguchi

IPC: H02M7/5387 ,  H02M1/00 ,  H02M1/088 ,  H02M3/158 ,  H02M7/537 ,  H02M7/493 ,  H02M1/08

CPC classification number: H02M7/53871 ,  H02M1/0048 ,  H02M1/088 ,  H02M3/158 ,  H02M7/493 ,  H02M7/537 ,  H02M1/0003 ,  H02M1/08

Abstract: In a power converter for converting DC power from a DC power source into AC power and supplying the AC power to a single-phase winding or multi-phase windings, a controller controls first and second inverter circuits and performs first power conversion control to lock open/closed states of switching elements in the second inverter circuit and switch open/closed states of switching elements in the first inverter circuit, and second power conversion control to lock open/closed states of the switching elements in the first inverter circuit and switch open/closed states of the switching elements in the second inverter circuit. The controller is configured to perform either the first power conversion control or the second power conversion control when an effective value of drive current through each winding is less than a threshold, and otherwise switch between the first power conversion control and the second power conversion control.

公开(公告)号：US11757290B2

公开(公告)日：2023-09-12

申请号：US17819608

申请日：2022-08-12

Applicant: Navitas Semiconductor Limited

Inventor： Daniel M. Kinzer ,  Santosh Sharma ,  Ju Jason Zhang

IPC: H02M1/088 ,  H02M3/158 ,  H03K3/012 ,  H01L27/088 ,  H01L23/528 ,  H02J7/00 ,  H01L23/495 ,  H01L27/02 ,  H01L23/62 ,  H01L29/20 ,  H03K17/10 ,  H03K19/0185 ,  H01L25/07 ,  H02M3/157 ,  H03K3/356 ,  H01L29/10 ,  H01L29/40 ,  H01L29/417 ,  H02M1/00 ,  H02M3/155

CPC classification number: H02J7/00 ,  H01L23/49503 ,  H01L23/49562 ,  H01L23/49575 ,  H01L23/528 ,  H01L23/62 ,  H01L25/072 ,  H01L27/0248 ,  H01L27/088 ,  H01L27/0883 ,  H01L29/1033 ,  H01L29/2003 ,  H01L29/402 ,  H01L29/41758 ,  H02M1/088 ,  H02M3/157 ,  H02M3/1584 ,  H02M3/1588 ,  H03K3/012 ,  H03K3/356017 ,  H03K17/102 ,  H03K19/018507 ,  H01L2924/00 ,  H01L2924/0002 ,  H02M1/0048 ,  H02M3/155 ,  Y02B40/00 ,  Y02B70/10 ,  H01L2924/0002 ,  H01L2924/00

Abstract: GaN-based half bridge power conversion circuits employ control, support and logic functions that are monolithically integrated on the same devices as the power transistors. In some embodiments a low side GaN device communicates through one or more level shift circuits with a high side GaN device. Various embodiments of level shift circuits and their inventive aspects are disclosed.