公开(公告)号：US20250023443A1

公开(公告)日：2025-01-16

申请号：US18366707

申请日：2023-08-08

Applicant: Power Forest Technology Corporation

Inventor： Yu-Chao Lin ,  Kuan-Chun Fang ,  Zhi-Yang Zhang ,  Chien-Wei Kuan

IPC: H02M1/00 ,  H02M3/24

Abstract: A feedback circuit is used for a power supply device. The power supply device includes a primary side circuit and a secondary side circuit. The feedback circuit includes a feedback voltage generation circuit, a base voltage generation circuit, and a compensation signal generation circuit. The feedback voltage generation circuit is electrically connected to the secondary side circuit. The feedback voltage generation circuit generates a feedback voltage according to a bias voltage and an output voltage of the power supply device. The base voltage generation circuit generates a base voltage according to the feedback voltage. The compensation signal generation circuit generates a compensation signal according to the feedback voltage and the base voltage and provides the compensation signal to a controller in the primary side circuit. A voltage value of the feedback voltage is lower than a voltage value of the bias voltage. The voltage value of the feedback voltage varies with the change of the output voltage.

公开(公告)号：US20240429812A1

公开(公告)日：2024-12-26

申请号：US18827779

申请日：2024-09-08

Applicant: Philip Scott Lyren ,  Glen A. Norris

Inventor： Philip Scott Lyren ,  Glen A. Norris

IPC: H02M1/42 ,  H02M1/08 ,  H02M3/24

Abstract: Speech and/or non-speech in an audio input are convolved to localize sounds to different locations for a user. An audio diarization system segments the audio input into speech and non-speech segments. These segments are convolved with one or more head related transfer functions (HRTFs) so the sounds localize to different sound localization points (SLPs) for the user.

公开(公告)号：US20240380327A1

公开(公告)日：2024-11-14

申请号：US18782756

申请日：2024-07-24

Applicant: ABB Schweiz AG

Inventor： Radek Javora ,  Carlos David Martinez Nieto ,  Andreas Brandt

IPC: H02M3/24 ,  H02J3/00 ,  H02J3/36

Abstract: A power conversion system includes a high voltage (HV) switchgear; a solid-state transformer; and a low voltage (LV) switchgear. The HV switchgear connects to and disconnects from a HV or medium voltage (MV) network. The HV switchgear connects to an input of the solid-state transformer. The solid-state transformer comprises a first module and a second module. The first module converts a HV alternating current (AC) signal into a HV direct current (DC) signal. The second module connects to an output of the first module and converts the HV DC signal from the first module into at least one LV DC signal. The second module comprises at least one sub-module that converts the HV DC signal from the first module into a LV DC signal. The LV switchgear connects to an output of the solid-state transformer.

公开(公告)号：US12126264B1

公开(公告)日：2024-10-22

申请号：US16720749

申请日：2019-12-19

Applicant: Brandon Pierquet ,  Ashish K. Sahoo ,  Garet E. Gamache ,  Jie Lu

Inventor： Brandon Pierquet ,  Ashish K. Sahoo ,  Garet E. Gamache ,  Jie Lu

IPC: H02M3/24 ,  G01R15/18 ,  H01F27/28 ,  H03K5/24 ,  H05K1/02 ,  H02M1/00

CPC classification number: H02M3/24 ,  G01R15/181 ,  H01F27/2804 ,  H03K5/24 ,  H05K1/0298 ,  H01F2027/2809 ,  H02M1/0009 ,  H05K2201/09227

Abstract: Systems and methods for current sensing are described. For example, a system may include a transformer including a winding that connects a first tap and a second tap; a circuit board; a first trace on a layer of the circuit board, wherein the first trace connects the first tap to a rectifier; a coil including one or more turns of trace on the layer of the circuit board, adjacent to the first trace; and a measurement circuit configured to estimate current flowing in the first trace based on voltage across the coil.

公开(公告)号：US20240264209A1

公开(公告)日：2024-08-08

申请号：US18638601

申请日：2024-04-17

Applicant: FUJIFILM CORPORATION

Inventor： Masayoshi MATSUURA ,  Yuji IKEDA

IPC: G01R21/06 ,  H02M3/24

CPC classification number: G01R21/06 ,  H02M3/24

Abstract: A control device includes processor causing converter to output a direct current voltage corresponding to output target power, if the output target power is less than or equal to first threshold value and exceeds second threshold value, fix the direct current voltage to first voltage, fix frequency, and control pulse width such that a tube voltage record value matches the output target tube voltage, if the output target power is less than or equal to second threshold value, fix the direct current voltage to first voltage, fix the pulse width, and control frequency such that the tube voltage record value matches the output target tube voltage, and if the output target power is less than or equal to third threshold value, decrease the direct current voltage to second voltage, and control pulse width and frequency such that the tube voltage record value matches the output target tube voltage.

公开(公告)号：US12051581B2

公开(公告)日：2024-07-30

申请号：US17768934

申请日：2020-09-04

Applicant: Hitachi High-Tech Corporation

Inventor： Zihao Ong ,  Takuma Nishimoto ,  Isao Furuya ,  Hiroshi Touda

IPC: H01J49/02 ,  H02M3/24

CPC classification number: H01J49/022 ,  H02M3/24

Abstract: The performance of a power supply module is to be improved. The occurrence of discharge in the power supply module is to be prevented, and the size of the power supply module is to be reduced. In a power supply module, substrates are provided being stacked in a planar view. A low voltage circuit and a high voltage circuit are formed on a first substrate such that a distance is kept for preventing surface discharge, and a low voltage circuit is formed on a second substrate. A distance between a component of a high voltage alternating current circuit on the high voltage circuit and a component of the low voltage circuit is three times a shortest distance, at which space discharge does not occurs, between a component that constitutes a high voltage direct current circuit on the high voltage circuit and a component that constitutes the low voltage circuit.

公开(公告)号：US11955273B2

公开(公告)日：2024-04-09

申请号：US17185421

申请日：2021-02-25

Applicant: Hyundai Mobis Co., Ltd.

Inventor： Won Gon Kim

IPC: H01F3/14 ,  H01F27/24 ,  H02M1/00 ,  H02M3/24 ,  H02M3/335 ,  H02M3/00

CPC classification number: H01F3/14 ,  H01F27/24 ,  H02M1/0058 ,  H02M3/24 ,  H02M3/33573 ,  H02M3/003 ,  H02M3/335 ,  H02M3/33546 ,  H01F3/14 ,  H02M1/08

Abstract: A low-voltage DC-DC converter includes a switch configured to convert a high voltage supplied from a high-voltage battery to an alternating current (AC) voltage, a transformer including an air gap in a core region and configured to lower the AC voltage to a low voltage using an adjusted turns ratio, and a power supply configured to rectify the low voltage and supply the rectified low voltage to a load.

公开(公告)号：US11929623B2

公开(公告)日：2024-03-12

申请号：US17803162

申请日：2022-03-10

Applicant: Michael Bank ,  Izhak Elyashiv

Inventor： Michael Bank ,  Izhak Elyashiv

IPC: H02J3/38 ,  B60L53/14 ,  H02M3/24 ,  H02J7/00

CPC classification number: H02J3/381 ,  B60L53/14 ,  H02M3/24 ,  H02J7/007 ,  H02J2207/20 ,  H02J2300/20

Abstract: For transmitting electrical energy different electric currents are transmitted through different numbers of wires from a plurality of sources, converted into single-wire electric currents with increased voltage, transmitted through a single-wire electrical current transmission line, converted into several electric currents with the reduced voltage and supplied to corresponding consumers.

公开(公告)号：US20240048042A1

公开(公告)日：2024-02-08

申请号：US17642026

申请日：2020-09-11

Applicant: CHRISTIAN-ALBRECHTS-UNIVERSITÄT ZU KIEL

Inventor： Levy FERREIRA COSTA ,  Marco LISERRE

IPC: H02M1/00 ,  H02M5/44 ,  H02M3/24 ,  B60L53/10

CPC classification number: H02M1/0067 ,  H02M5/44 ,  H02M3/24 ,  B60L53/10 ,  B60L2210/10

Abstract: The invention relates to a voltage transformer for converting a primary-side alternating voltage at a first voltage level into a secondary-side alternating voltage at a second voltage level, the voltage transformer having a DC link in which a first direct voltage generated from the primary-side alternating voltage is converted into a second direct voltage by means of a DC-to-DC voltage converter, characterised in that an output circuit for providing a third direct voltage for the connection of at least one load is coupled to the DC link, in particular to the DC-to-DC voltage converter thereof.

公开(公告)号：US20230382230A1

公开(公告)日：2023-11-30

申请号：US18248958

申请日：2021-09-17

Applicant: IMASEN ELECTRIC INDUSTRIAL CO., LTD.

Inventor： Daisuke MAKIO ,  Koichi YAMANOUE

IPC: B60L3/00 ,  H02M3/24 ,  H02H3/16 ,  B60L58/22

CPC classification number: B60L3/0069 ,  H02M3/24 ,  H02H3/16 ,  B60L3/0046 ,  B60L58/22 ,  B60L50/60

Abstract: In a vehicle power supply device mounted on a vehicle and obtaining a low voltage power supply from a high voltage power supply via a step-down means, electric shock to the human body is prevented without using an insulating means such as a transformer. A vehicle power supply device converts power from high voltage to low voltage by selectively connecting a predetermined power storage element group to a low voltage electric load from a high voltage power supply formed by connecting power storage elements in series. A leakage current from the high voltage power supply is measured during the dead time period when the power storage element group is not connected to the low voltage electric load. When the value exceeds a predetermined value, the connection between the power storage element group and the low-voltage electric load is interrupted, so that electric shock is prevented.