公开(公告)号：US20240063708A1

公开(公告)日：2024-02-22

申请号：US18259340

申请日：2021-02-12

Applicant: Mitsubishi Electric Corporation

Inventor： Koichi ARISAWA ,  Takuya SHIMOMUGI ,  Takaaki TAKAHARA ,  Haruka MATSUO ,  Keisuke UEMURA

IPC: H02M1/12 ,  H02M1/42 ,  H02M1/00 ,  H02M1/16 ,  H02M5/458 ,  H02P27/12 ,  H02M1/14 ,  F25B49/02

CPC classification number: H02M1/12 ,  H02M1/4283 ,  H02M1/0009 ,  H02M1/16 ,  H02M1/4225 ,  H02M5/4585 ,  H02P27/12 ,  H02M1/143 ,  F25B49/025 ,  H02P2201/07 ,  H02P2201/09 ,  H02P2201/15 ,  F25B2600/021

Abstract: A power converter includes: a rectifying and boosting unit that rectifies first alternating-current power supplied from a commercial power supply and boosts a voltage of the first alternating-current power; a capacitor connected to an output end of the rectifying and boosting unit; an inverter to convert power output from the rectifying and boosting unit and the capacitor into second alternating-current power, and output the second alternating-current power to a device; and a control unit that reduces a current flowing through the capacitor by controlling the rectifying and boosting unit and by controlling the inverter such that the inverter outputs, to the device, the second alternating-current power containing a ripple dependent on a ripple of power flowing from the rectifying and boosting unit into the capacitor. The control unit controls in accordance with a load state.

公开(公告)号：US09906161B1

公开(公告)日：2018-02-27

申请号：US15636652

申请日：2017-06-29

Applicant: GREEN SOLUTION TECHNOLOGY CO., LTD.

Inventor： Chi-Lin Chen

IPC: H02M7/217 ,  H02M3/335 ,  H01L29/772 ,  H02M1/16

CPC classification number: H02M7/217 ,  H01L29/7722 ,  H02M1/16 ,  H02M3/3353 ,  H02M3/33553 ,  H02M3/33576 ,  H02M3/33592

Abstract: A power conversion apparatus including a transformer, a synchronous rectification (SR) transistor and a SR controller is provided. The SR transistor is coupled between a secondary side of the transformer and an output terminal. The SR controller receives a cross voltage between a drain terminal and a source terminal of the SR transistor as a first detection signal. The SR controller obtains a first time length according to a voltage value of the first detection signal, a voltage value of a first trigger signal and a voltage value of a second trigger signal. The SR controller determines a time point to turn off the SR transistor according to the first time length.

公开(公告)号：US09190935B2

公开(公告)日：2015-11-17

申请号：US13859732

申请日：2013-04-10

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Yoshiyasu Takase ,  Kozo Ide ,  Shinya Morimoto ,  Hideaki Iura ,  Takahiro Saeki

IPC: H02M5/458 ,  H02M7/68 ,  H02M5/44 ,  H02M7/219 ,  H02M7/797 ,  H02P9/04 ,  H02P21/00 ,  H02M1/16

CPC classification number: H02M7/68 ,  H02M1/16 ,  H02M5/44 ,  H02M5/4585 ,  H02M7/219 ,  H02M7/797 ,  H02P9/04 ,  H02P21/50

Abstract: A power regenerative converter includes: a power conversion unit configured to convert AC power supplied from an AC power supply into DC power and convert DC power into AC power to be supplied as regenerative electric power to the AC power supply; an LCL filter including a reactor unit having a plurality of reactors connected in series between the power conversion unit and the AC power supply, and capacitors each having one end connected to a series connection point of the reactors in the reactor unit; a drive control unit for controlling the power conversion unit based on an AC voltage command; and a voltage command compensation unit for calculating a compensation value in accordance with a capacitor voltage being a voltage at the series connection point of the reactors and adding the compensation value to the AC voltage command input to the drive control unit.

Abstract translation: 一种电力再生转换器包括：电力转换单元，被配置为将从AC电源提供的AC电力转换为DC电力，并将DC电力转换成AC电力，以将其作为再生电力提供给AC电源; LCL滤波器，包括具有串联连接在功率转换单元和AC电源之间的多个电抗器的电抗器单元，以及各自具有连接到电抗器单元中的电抗器的串联连接点的电容器; 驱动控制单元，用于基于AC电压命令来控制所述电力转换单元; 以及电压指令补偿单元，用于根据电抗器的串联连接点处的电压的电容器电压来计算补偿值，并将补偿值与输入到驱动控制单元的AC电压指令相加。

公开(公告)号：US08134350B2

公开(公告)日：2012-03-13

申请号：US12472919

申请日：2009-05-27

Applicant: Olivier Rieux-Lopez ,  Olivier Goguet

Inventor： Olivier Rieux-Lopez ,  Olivier Goguet

IPC: G05F1/40

CPC classification number: H02M1/16 ,  Y10S323/901 ,  Y10S323/908

Abstract: A device for precharging a voltage converter is provided with a precharging unit, capable of assuming a closed state, as well as with a control unit for the precharging unit, the precharging unit being capable of operating according to a precharging state limiting the value of the precharging current passing through it, the control unit being capable of commanding the operation of the precharging unit according to the precharging state and, once the precharging has been completed, of commanding the precharging unit to change over from the precharging state to the closed state. The assembly has a chopping voltage converter and such a device disposed at the input of the converter. The aircraft is equipped with such a device or with such an assembly.

Abstract translation: 用于对电压转换器进行预充电的装置设置有能够呈现关闭状态的预充电单元以及用于预充电单元的控制单元，预充电单元能够根据预充电状态进行操作，从而限制 所述控制单元能够根据预充电状态来指示预充电单元的动作，一旦预充电结束，则指示预充电单元从预充电状态切换到关闭状态。 组件具有斩波电压转换器，并且这种器件设置在转换器的输入端。 该飞机配备有这样的装置或这样的装置。

公开(公告)号：US20180182372A1

公开(公告)日：2018-06-28

申请号：US15851214

申请日：2017-12-21

Applicant: ULTRAHAPTICS IP LTD

Inventor： David Philip Tester ,  Benjaimin John Oliver Long

IPC: G10K11/34 ,  G06F3/043 ,  H02M1/096 ,  H02M1/16 ,  H01G4/002

CPC classification number: G10K11/346 ,  B06B1/0207 ,  G06F3/0436 ,  H01G4/002 ,  H02M1/096 ,  H02M1/16

Abstract: A circuit for driving a transducer in a mid-air haptic system includes a voltage source, a voltage sink, a current source, a trickle capacitor, a storage capacitor, a haptic system transducer, a first switch, a second switch, and a third switch. Using these components, a portion of the charge required for switching a transducer is sourced from the decoupling capacitance. When the switching completes, additional charge is transferred immediately from the power supply back into the decoupling capacitance. This acts to lower the peak current by fully utilizing 100% of a switching waveform for transfer of charge from the power supply to capacitors local to the transducer.

公开(公告)号：US20170257668A1

公开(公告)日：2017-09-07

申请号：US15509344

申请日：2015-07-16

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Young KIM, II ,  Won RYU ,  Young Soo PARK ,  Yong Tae LEE ,  Eui Suk JUNG

IPC: H04N21/443 ,  H04N5/44 ,  H04N5/63 ,  H04N21/40 ,  H04N21/4227 ,  H04N21/24 ,  H02M3/28 ,  H04N7/173 ,  H02M1/16

CPC classification number: H04N21/443 ,  H02M1/16 ,  H02M3/28 ,  H04N5/44 ,  H04N5/63 ,  H04N7/173 ,  H04N21/24 ,  H04N21/2543 ,  H04N21/25833 ,  H04N21/40 ,  H04N21/4227 ,  H04N21/4436 ,  H04N21/47211

Abstract: A network cooperation-based low power type charged broadcasting set-top box and a controlling method therefor, the set-top box sub-dividing a standby mode of the set-top box into an active standby mode, in which only background functions are processed without processing a main function, and a passive standby mode, in which no functions are processed; extending the passive standby mode occupation time to more than that of the active standby mode; and including a way of transitioning between operating modes by exchanging information regarding the set-top box through an inter-cooperation between a charged broadcasting network and the set-top box, thereby reducing the power consumption of a processor (SoC) which processes multimedia contents and minimizing the power consumption while the set-top box is in standby mode.

公开(公告)号：US08593116B2

公开(公告)日：2013-11-26

申请号：US12727125

申请日：2010-03-18

Applicant: Bertrand Rivet ,  Benoî^t Peron ,  Aurélien Hamadou

Inventor： Bertrand Rivet ,  Benoî^t Peron ,  Aurélien Hamadou

IPC: H02M3/158

CPC classification number: H02M3/155 ,  H02M1/16

Abstract: A switched-mode converter includes a first magnetic circuit including a first inductive element, coupled to at least one second inductive element and electrically coupled in series with the second element and with a first diode between a first one of two input terminals and a first one of two output terminals; a first switch coupled in series with a third inductive element between a second terminal of the first inductive element and a second input terminal, a common node between the first switch and the third inductive element being connected to one of the output terminals by a second diode; and a circuit capable of canceling the voltage across the first switch before its turning-on.

Abstract translation: 开关模式转换器包括第一磁路，其包括耦合到至少一个第二电感元件并与第二元件串联电耦合的第一电感元件，以及在两个输入端子中的第一个和第一个之间的第一二极管 的两个输出端子; 第一开关与第一感应元件的第二端子与第二输入端子之间的第三感应元件串联耦合，第一开关和第三感应元件之间的公共节点通过第二二极管连接到输出端子之一 ; 以及能够在其接通之前消除第一开关两端的电压的电路。

公开(公告)号：US06642630B2

公开(公告)日：2003-11-04

申请号：US10156081

申请日：2002-05-29

Applicant: Kiyohiko Watanabe

Inventor： Kiyohiko Watanabe

IPC: H02J100

CPC classification number: H02M1/16 ,  H02M3/33561 ,  H02M3/33592 ,  Y02B70/1475 ,  Y10T307/406

Abstract: A multi-output switching power supply circuit easily produces multiple outputs with increased power source conversion efficiency. The circuit includes, in place of the rectifying diode and the commutating diode used in the multi-output switching power supply circuit of the prior art, a circuit configuration in which an NMOS for synchronous rectification is combined with a constant-voltage control by a magnetic amplifier. It is not required to use, for example, a radiator to dissipate heat, and hence the system size is reduced and the conversion efficiency is increased, and the system can be easily implemented in a low-voltage multi-output configuration. In a configuration in which a magnetic amplifier is arranged between a secondary winding and an first NMOS for synchronous rectification and a drive circuit for the first NMOS and an second NMOS for synchronous rectification is implemented as a separate winding other than the secondary winding, the first NMOS is not included in a loop to flow a reset current. The magnetic amplifier can conduct constant-voltage control without any influence from the interruption of the control loop when the first NMOS on the rectifying side is turned off.

Abstract translation: 多输出开关电源电路容易产生具有增加的电源转换效率的多个输出。 该电路包括代替现有技术的多输出开关电源电路中使用的整流二极管和整流二极管的电路结构，其中用于同步整流的NMOS与通过磁性的恒压控制相结合 放大器 例如，不需要使用散热器来散热，因此系统尺寸减小并且转换效率提高，并且系统可以容易地以低压多输出配置来实现。 在次级绕组和用于同步整流的第一NMOS之间配置有磁放大器的结构，并且用于第一NMOS的驱动电路和用于同步整流的第二NMOS用作除二次绕组以外的单独绕组， NMOS不包括在循环中以流过复位电流。 当整流侧的第一个NMOS关断时，磁放大器可以进行恒压控制，不受控制回路中断的影响。

公开(公告)号：US06490184B2

公开(公告)日：2002-12-03

申请号：US09811117

申请日：2001-03-16

Applicant: Jian Jiang ,  Wei Chen ,  Chau-Chun Wen

Inventor： Jian Jiang ,  Wei Chen ,  Chau-Chun Wen

IPC: H02M542

CPC classification number: H02M1/16 ,  H02M3/33561

Abstract: The present invention discloses forward power converter. The power converter includes a transformer for transferring an input voltage from a primary side to a secondary side. The secondary side includes a main output voltage loop and at least one auxiliary output loop connected with a magnetic amplifier. A pulse width modulation (PWM) controller controls a switch on the primary side of the transformer for turning on the switch and turning off the main output voltage loop and the auxiliary output voltage loop for storing a magnetizing energy on windings of the secondary side. The magnetic amplifier includes a first and a second magnetization windings controlled by a first and a second control circuits respectively for providing a positive and negative magnetization current to carrying out a bi-directional magnetization process to achieve expanded load range operable for the forward power converter.

Abstract translation: 本发明公开了前向功率转换器。 功率转换器包括用于将输入电压从初级侧传送到次级侧的变压器。 次级侧包括主输出电压回路和至少一个与磁放大器连接的辅助输出回路。 脉冲宽度调制（PWM）控制器控制变压器初级侧的开关，用于接通开关，并关闭主输出电压回路和辅助输出电压回路，用于在次级侧的绕组上存储励磁能。 磁放大器包括分别由第一和第二控制电路控制的第一和第二磁化绕组，用于提供正和负的磁化电流以执行双向磁化处理，以实现可运行于正向功率转换器的扩展负载范围。

公开(公告)号：US06430063B1

公开(公告)日：2002-08-06

申请号：US09844871

申请日：2001-04-27

Applicant: Katsuhiko Nishimura ,  Kazuo Kobayashi ,  Yoshiki Kubota

Inventor： Katsuhiko Nishimura ,  Kazuo Kobayashi ,  Yoshiki Kubota

IPC: H02M3335

CPC classification number: H02M3/33576 ,  H02M1/16 ,  H02M3/33592 ,  Y02B70/1475

Abstract: A primary side of a transformer has a switching transistor to on-off control the current flowing in a primary winding on a primary side. A secondary side of the transformer has a commutating side FET to be turned on by applying the induced voltage of a tertiary winding on a secondary side of a current transformer, and a flywheel side FET with the primary winding on the primary side of the current transformer connected thereto in series. The current transformation ratio of the current transformer is small in the initial period when the flywheel side FET is turned on, and then, the current transformation ratio is increased by current controlling means comprising a saturable reactor, a diode or the like.

Abstract translation: 变压器的初级侧具有开关晶体管，以开关控制在初级侧的初级绕组中流动的电流。 变压器的次级侧通过在电流互感器的二次侧施加三次绕组的感应电压而将导通的整流侧FET和在电流互感器的初级侧的初级绕组的飞轮侧FET 与之连接。 在飞轮侧FET导通的初始阶段，电流互感器的电流变换比小，然后由包括可饱和电抗器，二极管等的电流控制装置增加电流变换比。