公开(公告)号：US20190115838A1

公开(公告)日：2019-04-18

申请号：US16189714

申请日：2018-11-13

Applicant: Silanna Asia Pte Ltd

Inventor： Aleksandar Radic ,  Seyed-Behzad Mahdavikhah-Mehrabad

IPC: H02M3/335 ,  H02M3/28 ,  H02M1/08 ,  H02M1/34

CPC classification number: H02M3/33507 ,  H02M1/08 ,  H02M1/34 ,  H02M3/285 ,  H02M2001/0074

Abstract: The combined voltage regulator and snubber circuit generally has a voltage regulator device in parallel with the energy storage element of the snubber circuit operatively connectable in series with a leakage inductance current path; the leakage inductance being part of a magnetic component utilized in a switch-mode power supply having an input voltage source, controllable semiconductor switches, freewheeling semiconductor switches, feedback controller, reactive energy storage components and a load; the voltage regulator generally providing constant or variable voltage to the gate driver of the controllable semiconductor and/or feedback controller; the snubber circuit generally recycling leakage inductance energy to the input capacitor of a neighbouring cell in a multi-cell stacked converter.

公开(公告)号：US10074995B2

公开(公告)日：2018-09-11

申请号：US14318047

申请日：2014-06-27

Applicant: Gregory Smedley ,  Keyue Smedley ,  Roozbeh Naderi

Inventor： Gregory Smedley ,  Keyue Smedley ,  Roozbeh Naderi

IPC: H02J7/00 ,  H02M1/00

CPC classification number: H02J7/0018 ,  H02J7/0026 ,  H02J7/0052 ,  H02J2007/0059 ,  H02M2001/0074 ,  H02M2001/0077

Abstract: Aspects of a battery management converter system are described. In one embodiment, a battery management converter system includes an arrangement of a plurality of battery converter cells, where each battery converter cell includes one or more battery cells and a switching power converter. The system further includes a battery converter cell controller for each of the plurality of battery converter cells, and a battery management converter controller that receives battery status information from each battery converter cell controller and provides control references to distribute charging or discharging power among the plurality of battery converter cells.

公开(公告)号：US20180226890A1

公开(公告)日：2018-08-09

申请号：US15650355

申请日：2017-07-14

Applicant: Futurewei Technologies, Inc.

Inventor： Heping Dai

IPC: H02M3/158 ,  H02M3/335 ,  H02J3/38 ,  H01F17/00 ,  G01K7/16 ,  H02J7/35

CPC classification number: H02M3/1582 ,  G01K7/16 ,  H01F17/0013 ,  H02J3/383 ,  H02J7/0016 ,  H02J7/35 ,  H02M3/158 ,  H02M3/1584 ,  H02M3/33523 ,  H02M7/48 ,  H02M2001/0032 ,  H02M2001/0074 ,  H02M2001/0077 ,  H02M2001/0093 ,  H02S50/00 ,  Y02E10/56

Abstract: The disclosure relates to technology for providing power, voltage, and/or current from a combination of DC sources. The DC sources may be photovoltaic panels. One aspect includes a stack of DC power sources (e.g., photovoltaic modules) with a DC to DC converter (e.g., power optimizer) associated with each DC power source. An output capacitor of a DC to DC converter is connected in series with its DC power source. Thus, there is a string of DC power sources and output capacitors connected in electrical series. The DC output of the system is a series connection of the DC power sources and the output capacitors. This reduces stress on the output capacitors, while allowing for efficient power generation by the DC power sources.

公开(公告)号：US20180091038A1

公开(公告)日：2018-03-29

申请号：US15566084

申请日：2015-05-05

Applicant: ABB Schweiz AG

Inventor： Sasitharan SUBRAMANIAN

IPC: H02M1/32 ,  H02M7/49 ,  H02M7/493 ,  H02M1/12 ,  H02M1/15 ,  H02M7/162 ,  H02M7/19

CPC classification number: H02M1/32 ,  H02M1/12 ,  H02M1/15 ,  H02M7/1626 ,  H02M7/19 ,  H02M7/49 ,  H02M7/493 ,  H02M2001/0074 ,  H02M2007/4835

Abstract: A voltage source converter has director valve phase legs in parallel with waveshaper phase legs between two DC terminals. The director valve and waveshaper phase legs include upper and lower phase arms alternately operated to form waveshapes on AC terminals of the converter, thereby allowing a number of waveshaper phase arms to be available for use for other purposes. At least one of the available phase arms is controlled to contribute to other aspects of converter operation than waveshaping.

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：US09853460B2

公开(公告)日：2017-12-26

申请号：US14944771

申请日：2015-11-18

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Keiichi Ichikawa ,  Tatsuya Hosotani

IPC: H02M3/158 ,  H02J5/00 ,  H02M3/335 ,  H02J7/02 ,  H02M1/00

CPC classification number: H02J5/005 ,  H02J7/025 ,  H02J50/05 ,  H02J50/12 ,  H02M3/158 ,  H02M3/1582 ,  H02M3/1584 ,  H02M3/33584 ,  H02M2001/0074

Abstract: A power conversion circuit includes multiple input-side capacitors connected in series between input terminals; series circuits composed of high-side switching elements and low-side switching elements connected in parallel to the multiple input-side capacitors; and output-side capacitors connected between nodes and a node. The circuit further includes an output-side inductor connected to the node and a controller that alternately turns on and off the high-side switching elements and the low-side switching elements. Each of the low-side switching elements and the high-side switching elements is a MOSFET and causes current to flow from the low side to the high side using a body diode. Accordingly, there is provided a power conversion circuit that has high conversion efficiency and that is capable of realizing reduction in size, a power transmission system, and a power conversion system.

公开(公告)号：US09819272B2

公开(公告)日：2017-11-14

申请号：US15149491

申请日：2016-05-09

Applicant: Massachusetts Institute of Technology

Inventor： David J. Perreault ,  Khurram K. Afridi ,  Samantha J. Gunter

IPC: H02M3/335 ,  H02M3/337 ,  H02M1/42 ,  H02M1/44 ,  H02M1/00

CPC classification number: H02M3/33507 ,  H02M1/4241 ,  H02M1/44 ,  H02M3/33523 ,  H02M3/3376 ,  H02M2001/0048 ,  H02M2001/0054 ,  H02M2001/0058 ,  H02M2001/0074 ,  H02M2001/0077 ,  Y02B70/1491

Abstract: A power converter for converting DC power to DC power includes an inverter stage having two or more switched inverters configured to receive DC power from a source and produce a switched AC output power signal. A transformation stage is coupled to receive the switched output power signal from the inverter stage, shape the output power signal, and produce a shaped power signal. A rectifier stage having two or more switched inverters coupled to receive the shaped power signal and convert the shaped power signal to a DC output power signal is included. A controller circuit is coupled to operate the power converter in a variable frequency multiplier mode where at least one of the switched inverters is switched at a frequency or duty cycle that results in an output signal having a frequency that is a harmonic of the fundamental frequency being generated by the power converter.

公开(公告)号：US09780682B2

公开(公告)日：2017-10-03

申请号：US15285401

申请日：2016-10-04

Applicant: Resilient Power Systems, LLC

Inventor： Lyle Thomas Keister ,  Joshua David Keister ,  Bradley John Schafer ,  Albert Andreas Maria Esser

IPC: H02M5/458 ,  H02M1/08 ,  H02M1/12 ,  H02M1/14 ,  H02M1/42 ,  H02M1/00 ,  H02M1/32

CPC classification number: H02M5/458 ,  H02M1/08 ,  H02M1/084 ,  H02M1/12 ,  H02M1/14 ,  H02M1/32 ,  H02M1/42 ,  H02M5/4585 ,  H02M7/49 ,  H02M2001/0009 ,  H02M2001/0074 ,  H02M2001/0077 ,  H02M2001/325

Abstract: The present disclosure relates to power management apparatuses and systems utilizing synchronous common coupling. A power management apparatus may include a synchronous common coupling, a plurality of ports, and a plurality of electrically isolated stacks connected through the synchronous common coupling. Each electrically isolated stack may include at least one stage, each stage including a source/load bridge, a flux bridge, and a direct current (DC) bus. The source/load bridge may be connected to a source or load through one of the plurality of ports, the flux bridge may be connected to an electrically isolated winding in the synchronous common coupling, and the flux bridge may be connected to the source/load bridge through the DC bus.

公开(公告)号：US09722505B2

公开(公告)日：2017-08-01

申请号：US14941122

申请日：2015-11-13

Applicant: DELTA ELECTRONICS, INC.

Inventor： Changyong Wang ,  Li Cai ,  Yansong Lu ,  Fei Lu

IPC: H02M5/458 ,  H02J3/38 ,  H02M7/25 ,  H02M1/32 ,  H02M7/49 ,  H02M1/00

CPC classification number: H02M5/458 ,  H02J3/386 ,  H02M1/32 ,  H02M5/4585 ,  H02M7/25 ,  H02M7/49 ,  H02M2001/0032 ,  H02M2001/0074 ,  Y02B70/16 ,  Y02E10/763

Abstract: A wind power conversion system includes plural first converting circuits and a second converting circuit. The plural first converting circuits perform a power converting task, and include respective first generator-side terminals and respective first network-side terminals. The first generator-side terminals are electrically connected with a wind power generator. The first network-side terminals are electrically connected with corresponding secondary windings of an isolating transformer. The second converting circuit includes plural second generator-side terminals and a second network-side terminal. The second network-side terminal is electrically connected with the corresponding secondary winding of plural secondary windings of the isolating transformer. The second generator-side terminals are serially connected with the corresponding first generator-side terminals of the first converting circuits. When the second converting circuit is enabled, the power converting task of the plural first converting circuits is shared by the second converting circuit.

公开(公告)号：US20170194866A1

公开(公告)日：2017-07-06

申请号：US15468917

申请日：2017-03-24

Applicant: Infineon Technologies Austria AG

Inventor： Gerald Deboy ,  Kennith Kin Leong

IPC: H02M3/158 ,  H02M1/08

CPC classification number: H02M3/158 ,  H02M1/083 ,  H02M3/1584 ,  H02M2001/0074

Abstract: In accordance with an embodiment, a method includes converting power by a power converter circuit having a plurality of converter cells coupled to a supply circuit. Converting the power includes a plurality of successive activation sequences and, in each activation sequence, activating at least some of the plurality of converter cells at an activation frequency. The activation frequency is dependent on at least one of an output power and an output current of the power converter circuit.