公开(公告)号：US20180301998A1

公开(公告)日：2018-10-18

申请号：US15951663

申请日：2018-04-12

Applicant: Accion Systems, Inc.

Inventor： Paul E. Fogel

IPC: H02M3/335 ,  H02M1/08 ,  H01J27/02

CPC classification number: H02M3/33569 ,  H01J27/022 ,  H02M1/08 ,  H02M3/33561 ,  H02M3/3376 ,  H02M7/103 ,  H02M2001/008

Abstract: A polarity-selectable high voltage direct current power supply including a first drive assembly that transforms a first low voltage DC input into a first medium voltage alternating current output; a first HV output assembly that transforms the first LV AC output into a first HV DC output, wherein the first HV output assembly defines a first input stage; a polarity selector coupled between the second output junction of the first drive assembly and the first and second input stages of the first HV output assembly, the polarity selector operable between a first configuration and a second configuration; wherein in the first configuration the first HV DC output has a positive polarity; and wherein in the second configuration the first HV DC output has a negative polarity.

公开(公告)号：US20180278154A1

公开(公告)日：2018-09-27

申请号：US15756703

申请日：2016-09-12

Applicant: NEC Corporation

Inventor： Takashi YAMANE

IPC: H02M1/44 ,  H02M3/04 ,  H03H17/02

CPC classification number: H02M1/44 ,  H02M3/04 ,  H02M2001/0012 ,  H02M2001/008 ,  H03H17/0213

Abstract: The present invention is aimed at providing a switching power supply apparatus enabling to avoid enhancement of noise of a specific frequency component. The present invention is a switching power supply apparatus provided with: a switching power supply configured to perform switching of input from a primary power source and thereby output a secondary power source; and a noise frequency analysis device configured to analyze frequency components of noise included in output of the primary power source or of the secondary power source, and accordingly cause the switching power supply to perform switching at a different frequency from a frequency of a maximum noise amplitude among the frequency components.

公开(公告)号：US20180131283A1

公开(公告)日：2018-05-10

申请号：US15684397

申请日：2017-08-23

Applicant: ROHM CO., LTD.

Inventor： Akihiro ONO

IPC: H02M3/335 ,  H02J1/06 ,  G06F1/26

CPC classification number: H02M3/33507 ,  G06F1/26 ,  G06F1/266 ,  H02J1/06 ,  H02M3/285 ,  H02M3/33523 ,  H02M3/33576 ,  H02M2001/0006 ,  H02M2001/007 ,  H02M2001/008

Abstract: A PD device comprises: a DC/DC converter disposed between an input and a VBUS output; a primary-side controller configured to control an input current of the DC/DC converter; a signal conversion and switching circuit coupled to a control input and configured to executes signal conversion and switching; an output capacitor CO connected between the VBUS output and the signal conversion and switching circuit; and a secondary-side controller coupled to the signal conversion and switching circuit, and configured to receive the control input signals subjected to the signal conversion and switching executed in the signal conversion and switching circuit, and to feed back the control input signals to the primary-side controller. The primary-side controller varies an output voltage value and an available output current value (MAX value) of the DC/DC converter by controlling the input current on the basis of the control input signals fed back from the secondary-side controller.

公开(公告)号：US09941781B2

公开(公告)日：2018-04-10

申请号：US14970457

申请日：2015-12-15

Applicant: Chengdu Monolithic Power Systems Co., Ltd.

Inventor： Wangmiao Hu ,  Lijie Jiang ,  Wenbin Lu ,  Qian Ouyang ,  Jinghai Zhou ,  Eric Yang

IPC: H02J3/14 ,  H02M1/084 ,  H02M3/156 ,  H02M1/00

CPC classification number: H02M1/084 ,  H02M3/156 ,  H02M2001/008

Abstract: A multi-rail switching converter providing a plurality of output voltages has a master switching circuit, a plurality of slave switching circuits and a control circuit. The control circuit has an interleaving control circuit, the interleaving control circuit judges a phase zone of a corresponding slave switching circuit based on a switching control signal of the master switching circuit and a set signal of the corresponding slave switching circuit, and adjusts a turn-ON moment of the corresponding slave switching circuit based on the phase zone of the corresponding slave switching circuit.

公开(公告)号：US09866141B2

公开(公告)日：2018-01-09

申请号：US14762627

申请日：2014-01-22

Applicant: FAIVELEY TRANSPORT TOURS

Inventor： Benoit Peron

IPC: H02M7/217 ,  H02M3/335 ,  H02M1/00

CPC classification number: H02M7/217 ,  H02M3/33561 ,  H02M3/33576 ,  H02M2001/0074 ,  H02M2001/008 ,  H02M2001/0087

Abstract: A chopped current input electrical energy converter includes at least one conversion module (K1, K2) generating at least one first output signal (Vout1) and one second output signal (Vout2) and including: a transformer (10), an input switching stage (20) controlling the transfer of electrical energy to the transformer (10), and at least one first output stage (30) and one second output stage (40), the first output stage (30) generating the first output signal (Vout1), and the second output stage (40) generating the second output signal (Vout2); the level of the first output signal (Vout1) reflected at a primary winding (11) of the transformer (10) is greater than the level of the second output signal (Vout2) reflected at the primary winding (11) of the transformer (10).

公开(公告)号：US20180006555A1

公开(公告)日：2018-01-04

申请号：US15637049

申请日：2017-06-29

Applicant: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ALABAMA

Inventor： Jaber A. Abu Qahouq

IPC: H02M3/155 ,  H02J7/02 ,  H02J7/00 ,  H02M1/14 ,  H02J50/10

CPC classification number: H02M3/155 ,  G06F1/26 ,  H02J1/06 ,  H02J7/0052 ,  H02J7/025 ,  H02J50/10 ,  H02M1/14 ,  H02M3/158 ,  H02M3/1582 ,  H02M2001/008

Abstract: Systems, devices, controllers, and methods for simultaneous transfer of wireless and wired power are described herein. An example device can include a power converter or inverter circuit having a switch, a power inductor, a wired power output loop for delivering wired power to a wired load, and a wireless power output loop for delivering wireless power to a wireless load. The wired power can be a function of a direct current (DC) component of a current of the power inductor, and the wireless power can be a function of an induced and/or switching alternating current (AC) ripple component of the current of the power inductor. In addition, the device can include a controller operably coupled to the power converter or inverter circuit. The controller can include a processing unit and a memory and can be configured to independently regulate the wired power and the wireless power.

公开(公告)号：US09827857B2

公开(公告)日：2017-11-28

申请号：US15058280

申请日：2016-03-02

Applicant: Toyota Jidosha Kabushiki Kaisha

Inventor： Kota Suzuki ,  Tomoko Oba

IPC: B60L11/02 ,  B60L11/18 ,  H02M3/04 ,  H02M7/44 ,  H02M1/32 ,  H02P27/06 ,  H02M7/5387 ,  H02M1/00

CPC classification number: B60L11/02 ,  B60L11/18 ,  H02M1/32 ,  H02M3/04 ,  H02M7/44 ,  H02M7/5387 ,  H02M2001/007 ,  H02M2001/008 ,  H02M2001/325 ,  H02P27/06

Abstract: A power supply device includes a battery, an inverter, a converter, an electronic control unit. The inverter includes an upper arm having a third switching element and a lower arm having a fourth switching element. The converter includes an upper arm having a first switching element and a lower arm having a second switching element. The electronic control unit is configured to, when a state where the primary-side voltage is at least equal to the specified threshold continues for a specified time or longer, i) increase the primary-side voltage by repeatedly switching the second switching element between ON and OFF state while maintaining the first switching element to be OFF state, and apply the increased voltage as the secondary-side voltage to the inverter, and ii) convert the secondary-side voltage to the AC voltage by repeatedly switching each of the third and the fourth switching element between ON and OFF state.

公开(公告)号：US20170315495A1

公开(公告)日：2017-11-02

申请号：US15492138

申请日：2017-04-20

Applicant: Oki Data Corporation

Inventor： Shuichi SUZUKI

IPC: G03G15/00 ,  H02M3/335

CPC classification number: G03G15/80 ,  G03G15/0283 ,  G03G15/065 ,  H02M3/33507 ,  H02M3/33546 ,  H02M2001/0045 ,  H02M2001/0064 ,  H02M2001/008

Abstract: A high-voltage power supply includes: a first high-voltage output circuit having a first output connected to a first load, and a second output, and capable of outputting a first voltage having a first polarity to the first load; a voltage clamping element connected to the second output and configured to clamp a voltage at the second output to a second voltage having a second polarity opposite to the first polarity; a second high-voltage output circuit having a third output connected to the second output and a fourth output, and capable of outputting a third voltage having the first polarity; and an output circuit connected to the fourth output and a second load, and configured to produce a voltage having the first polarity and a voltage having the second polarity using the third voltage and a voltage derived from the second voltage and output the produced voltages to the second load.

公开(公告)号：US09787091B2

公开(公告)日：2017-10-10

申请号：US14856111

申请日：2015-09-16

Applicant: General Electric Company

Inventor： Joao Luiz Andres

IPC: H02J1/10 ,  H02M3/335 ,  H02M3/337 ,  H02M1/00

CPC classification number: H02J1/102 ,  H02M3/33515 ,  H02M3/3376 ,  H02M2001/007 ,  H02M2001/008

Abstract: Systems and methods for controlling a power conversion system are provided. The power conversion system includes a power converter comprising a primary stage coupled to a secondary stage to generate an output direct current (DC) voltage from an input voltage received from an input voltage source. The power conversion system also includes a control circuit coupled to the power converter. The control circuit is configured to implement a self-adjusting set-point control algorithm to generate the output DC voltage without using an input voltage measurement, wherein the output DC voltage follows the input voltage over at least a portion of an input voltage range.

公开(公告)号：US20170271981A1

公开(公告)日：2017-09-21

申请号：US15119242

申请日：2015-09-29

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Magnus Karlsson ,  Jonas Malmberg ,  Fredrik Wahledow

IPC: H02M3/04 ,  H02M7/44 ,  H02M5/04 ,  H02M7/04

CPC classification number: H02M3/04 ,  H02M5/04 ,  H02M7/04 ,  H02M7/44 ,  H02M2001/0019 ,  H02M2001/0025 ,  H02M2001/008

Abstract: A converter control unit, method, and computer program product for controlling a power supply device including a converter that provides power to a load. In one embodiment, the converter control unit is configured to obtain a load voltage measure from the converter representing a load voltage of the load, obtain an estimate of a voltage drop between the converter and the load, and obtain a reference voltage corresponding to a desired load voltage. The converter control unit is also configured to adjust the reference voltage or the load voltage measure with the estimate of the voltage drop, and compare, after the adjustment, the load voltage measure with the reference voltage to acquire an error signal. The converter control unit is still further configured to control the converter to provide the load voltage based on the error signal.