公开(公告)号：US09190911B2

公开(公告)日：2015-11-17

申请号：US13786266

申请日：2013-03-05

Applicant: FutureWei Technologies, Inc.

Inventor： Heping Dai ,  Hengchun Mao ,  Dianbo Fu

IPC: H02M3/335 ,  H02M1/00

CPC classification number: H02M3/335 ,  H02M3/33569 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491

Abstract: A resonant tank comprises a series resonant inductor coupled to a switching network and a transformer, a series resonant capacitor coupled to the switching network and the transformer, a first parallel inductor implemented as a magnetizing inductance of the transformer, a second parallel inductor implement as a separate inductor, wherein a first inductance of the first parallel inductor is greater than a second inductance of the second parallel inductor and a switch connected in series with the second parallel inductor.

Abstract translation: 谐振箱包括耦合到开关网络和变压器的串联谐振电感器，耦合到开关网络和变压器的串联谐振电容器，被实现为变压器的磁化电感的第一并联电感器，作为变压器的第二并联电感器器件 其中所述第一并联电感器的第一电感大于所述第二并联电感器的第二电感，以及与所述第二并联电感器串联连接的开关。

公开(公告)号：US09178438B2

公开(公告)日：2015-11-03

申请号：US13857834

申请日：2013-04-05

Applicant: FutureWei Technologies, Inc.

Inventor： Dianbo Fu ,  Hengchun Mao ,  Heping Dai

IPC: H02M1/12 ,  H02M3/335 ,  H02M1/00

CPC classification number: H02M3/33576 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491

Abstract: A converter comprises a bridge and a resonant tank coupled between the bridge and an isolation transformer. The converter is configured such that the converter operates at a first constant-gain resonant frequency during a normal operation condition wherein a voltage gain of the converter is essentially insensitive to an output load change and the converter operates at a minimum-gain damping frequency during an abnormal operation condition wherein a voltage gain of the converter is approximately equal to zero.

Abstract translation: A转换器包括桥和耦合在桥与隔离变压器之间的谐振槽。 转换器被配置为使得转换器在正常操作状态期间以第一恒定增益谐振频率工作，其中转换器的电压增益对输出负载变化基本上不敏感，并且转换器在期间在最小增益阻尼频率下工作 异常操作条件，其中转换器的电压增益近似等于零。

公开(公告)号：US20150263626A1

公开(公告)日：2015-09-17

申请号：US14728590

申请日：2015-06-02

Applicant: Futurewei Technologies, Inc.

Inventor： Hengchun Mao ,  Dianbo Fu ,  Bing Cai

IPC: H02M3/158 ,  H01L25/065 ,  H01L25/00 ,  H01L23/00 ,  H01L21/48 ,  H01L23/495 ,  H01L25/16

CPC classification number: H02M3/158 ,  H01L21/4828 ,  H01L21/4842 ,  H01L23/49562 ,  H01L23/49575 ,  H01L23/49589 ,  H01L24/81 ,  H01L25/0655 ,  H01L25/0657 ,  H01L25/16 ,  H01L25/50 ,  H01L2225/06513 ,  H01L2225/06517 ,  H01L2924/1205 ,  H01L2924/1206 ,  H01L2924/1207 ,  H01L2924/13091 ,  H01L2924/14252 ,  H01L2924/1426 ,  H02M3/00 ,  H02M3/1588 ,  Y02B70/1466 ,  Y10T29/4913

Abstract: An embodiment power converter package comprises a semiconductor die, an output inductor, a plurality of input capacitors and output capacitors. The semiconductor die, the output inductor and the plurality of capacitors are mounted on a lead frame and connected one to another through various pads on the lead frame. The semiconductor die comprises a high side switch, a low side switch and a driver. The power converter package is electrically coupled to an external pulse width modulation controller through a variety of input and output pads.

Abstract translation: 实施例的功率转换器封装包括半导体管芯，输出电感器，多个输入电容器和输出电容器。 半导体管芯，输出电感器和多个电容器安装在引线框架上，并通过引线框架上的各种焊盘彼此连接。 半导体管芯包括高侧开关，低侧开关和驱动器。 功率转换器封装通过各种输入和输出焊盘电耦合到外部脉宽调制控制器。

公开(公告)号：US20140117962A1

公开(公告)日：2014-05-01

申请号：US14150473

申请日：2014-01-08

Applicant: Futurewei Technologies, Inc.

Inventor： Hengchun Mao ,  Dianbo Fu ,  Bing Cai

IPC: H02M3/158

CPC classification number: H02M3/1582 ,  H02J1/102

Abstract: A power system comprising a non-isolated voltage regulator configured to couple to an input voltage and produce an output voltage, wherein the non-isolated voltage regulator is in a power distribution system and configured to boost the input voltage when the input voltage is less than a minimum output voltage, to reduce the input voltage when the input voltage is greater than a maximum output voltage, and to pass-through the input voltage when the input voltage is greater than or equal to the minimum output voltage and less than or equal to the maximum output voltage.

Abstract translation: 一种电力系统，包括被配置为耦合到输入电压并产生输出电压的非隔离电压调节器，其中所述非隔离电压调节器在配电系统中并且被配置为当所述输入电压小于 最小输出电压，以在输入电压大于最大输出电压时降低输入电压，并且当输入电压大于或等于最小输出电压并且小于或等于 最大输出电压。

公开(公告)号：US10686378B2

公开(公告)日：2020-06-16

申请号：US15801608

申请日：2017-11-02

Applicant: Futurewei Technologies, Inc.

Inventor： Heping Dai ,  Liming Ye ,  Dianbo Fu

IPC: H02M3/158 ,  G05F3/20 ,  H02M3/07 ,  H02M3/335 ,  H02M1/00

Abstract: A regulated partial power controlled converter is presented, with the partial power controlled converter containing a DC/DC converter receiving an input signal. The regulated partial power converter providing a first converted signal from a first terminal, and providing a second converted signal from a second terminal. The regulated partial power converter also contains a first capacitor connected between an output node and an intermediate node, a second capacitor connected between the intermediate node and a ground, and a charge balance circuit connected to the output node, the intermediate node, and the ground. An output power of the partial power controlled converter is based on a first partial power provided by the DC/DC converter and a second partial power provided by a charge balance circuit.

公开(公告)号：US10673318B2

公开(公告)日：2020-06-02

申请号：US16266983

申请日：2019-02-04

Applicant: Futurewei Technologies, Inc.

Inventor： Dianbo Fu ,  Fei Ye ,  Lei Shi

IPC: H02M1/32 ,  H02M1/36 ,  H02M3/158 ,  H02M7/44

Abstract: In certain embodiments, an apparatus includes an inductor having first and second terminals. The first terminal is configured to be coupled to a power source. The apparatus includes a pair of serially-coupled transistors coupled to the second terminal of the inductor. A transistor intermediate node is positioned between the pair of serially-coupled transistors. The apparatus includes a pair of serially-coupled diodes coupled to the second terminal of the inductor. A diode intermediate node is positioned between the pair of serially-coupled diodes. The apparatus includes a first capacitor coupled in parallel with the serially-coupled transistors and the serially-coupled diodes. The apparatus includes a sub-circuit having a second capacitor serially-coupled with an auxiliary transistor. The sub-circuit is coupled between the transistor intermediate node and the diode intermediate node and is in parallel with a transistor of the pair of serially coupled transistors and with a diode of the pair of serially-coupled diodes.

公开(公告)号：US10665743B2

公开(公告)日：2020-05-26

申请号：US15650370

申请日：2017-07-14

Applicant: Futurewei Technologies, Inc.

Inventor： Heping Dai ,  Liming Ye ,  Dianbo Fu ,  Xiaolin Mao

IPC: H01L31/02 ,  H01L31/0443 ,  H01L31/05 ,  H01L31/18 ,  H02S30/10 ,  H02S50/00 ,  H01L31/0224

Abstract: The disclosure relates to technology for providing power, voltage, and/or current from a combination of photovoltaic modules. In one aspect, a system has central power optimizer, which is located between a group of distributed power optimizers and a solar inverter. Each distributed power optimizer may be connected to the DC output of one photovoltaic modules, and may be used to regulate the power output of the photovoltaic module. The combined DC voltages of the distributed power optimizers may be provided to the input of the central power optimizer.

公开(公告)号：US20190214904A1

公开(公告)日：2019-07-11

申请号：US15863002

申请日：2018-01-05

Applicant: Futurewei Technologies, Inc.

Inventor： Bo Yu ,  Jinxiang Zhan ,  Dianbo Fu

IPC: H02M3/158 ,  H02M1/08

Abstract: A DC to DC converter uses a multi-level boost converter topology. In addition to the input voltage being connected to an output node through a boost inductor in series with a pair of diodes, a bridge circuit generates a multi-level waveform on one side of flying capacitor, which is on the other side connected between the series connected diodes. The boost converter topology maintains low voltage stress on its components under abnormal conditions on the output node and allows for simple pre-charging of the flying capacitor.

公开(公告)号：US20190207601A1

公开(公告)日：2019-07-04

申请号：US16296419

申请日：2019-03-08

Applicant: Futurewei Technologies, Inc.

Inventor： Dianbo Fu ,  Zhaohui Wang ,  Jun Zhang ,  Lei Shi

IPC: H03K17/16 ,  H03K17/567 ,  H03K17/687 ,  H03K17/06 ,  H03K17/0812

CPC classification number: H03K17/168 ,  H03K17/06 ,  H03K17/08128 ,  H03K17/567 ,  H03K17/6877 ,  H03K2017/066

Abstract: A device includes a first diode and a second diode connected in series between a first terminal and a second terminal of a switching element, wherein the switching element is a unidirectional device and an anode of the first diode is directly connected to an anode of the second diode, a third diode connected between the first terminal and the second terminal of the switching element and a switch connected in parallel with the first diode.

公开(公告)号：US20190148947A1

公开(公告)日：2019-05-16

申请号：US15829846

申请日：2017-12-01

Applicant: Futurewei Technologies, Inc.

Inventor： Xiaolin Mao ,  Heping Dai ,  Dianbo Fu ,  Huibin Zhu

IPC: H02J3/38

Abstract: System, device and method for exporting power are provided including at least one AC optimizer with plurality of DC inputs each connecting with respective one of plurality of DC sources, and independent maximum power point tracking (MPPT) performed for each respective DC source to extract power from each DC source for output and coupling to AC grid. When multiple AC optimizers are employed, with each AC optimizer having multiple DC inputs, each DC input can be connected to PV module with independent MPPT function. Since, each AC optimizer can serve multiple PV modules, significant cost saving and efficiencies can be achieved. Optionally, on PV sub-module level, each of the multiple DC inputs can be used as an independent MPPT channel for a PV sub-module cell string.