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公开(公告)号：US20160141960A1
公开(公告)日：2016-05-19
申请号：US14548106
申请日：2014-11-19
Applicant: Futurewei Technologies, Inc.
Inventor： Jinbo Huang , Xujun Liu , Dianbo Fu , Liming Ye , Heping Dai , Daoshen Chen
IPC: H02M3/335
CPC classification number: H02M3/33507 , H02M3/158 , H02M3/1582 , H02M2001/0009 , H02M2001/0058 , Y02B70/1425 , Y02B70/1433 , Y02B70/1491
Abstract: A converter comprises a switch network coupled to a power source, wherein the switch network comprises a plurality of power switches, a magnetic device coupled to the switch network, a detector coupled to the magnetic device through a magnetic coupling and a control circuit configured to receive a zero voltage switching signal from the detector and adjust gate drive signals of the power switches based upon the zero voltage switching signal.
Abstract translation: A转换器包括耦合到电源的开关网络，其中开关网络包括多个电源开关，耦合到开关网络的磁性装置，通过磁耦合耦合到磁性装置的检测器和被配置为接收 来自检测器的零电压切换信号，并且基于零电压切换信号调节功率开关的栅极驱动信号。
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公开(公告)号：US20150131329A1
公开(公告)日：2015-05-14
申请号：US14077406
申请日：2013-11-12
Applicant: FutureWei Technologies, Inc.
Inventor： Daoshen Chen , Heping Dai , Xujun Liu , Liming Ye , Dianbo Fu
IPC: H02M3/335
CPC classification number: H02M3/33546 , H02M1/08 , H02M1/088 , H02M1/14 , H02M1/36 , H02M3/3353 , H02M3/33553 , H02M3/33576 , H02M3/33592 , H02M3/3385 , H02M7/4807 , H02M2001/0006 , H02M2001/0058 , H02M2007/4818 , Y02B70/1433 , Y02B70/1441 , Y02B70/1491 , Y02P80/112
Abstract: An apparatus comprises a bridge coupled between a bias voltage and ground, wherein the bridge comprises a first switch and a second switch connected in series and coupled between the bias voltage and ground and a third switch and a fourth switch connected in series and coupled between the bias voltage and ground, a resonant device coupled to the bridge, wherein the resonant device comprises a fixed capacitance, a gate capacitance and a magnetizing inductance, a transformer coupled to the resonant device, wherein the transformer comprises a primary winding and a plurality of secondary windings.
Abstract translation: 一种装置包括耦合在偏置电压和接地之间的桥，其中桥包括串联连接并耦合在偏置电压和地之间的第一开关和第二开关，以及串联耦合在第三开关和第四开关之间的第三开关和第四开关， 偏置电压和接地，耦合到桥的谐振装置，其中所述谐振装置包括固定电容，栅极电容和磁化电感，耦合到所述谐振装置的变压器，其中所述变压器包括初级绕组和多个次级绕组 绕组。
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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
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.
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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.
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公开(公告)号：US10164544B2
公开(公告)日：2018-12-25
申请号：US15635705
申请日：2017-06-28
Applicant: Futurewei Technologies, Inc.
Inventor： Liming Ye , Heping Dai , Dianbo Fu
Abstract: An Input-Series-Output-Parallel (ISOP)-type partial power converter circuit comprises: an isolated, unregulated DC-to-DC converter configured to generate a first output voltage at a first output voltage node; and a regulated DC-to-DC converter coupled with the unregulated DC-to-DC converter and configured to generate a second output voltage at a second output voltage node, the regulated DC-to-DC converter comprising a resonant forward-flyback converter configuration; wherein the first output voltage node is coupled in parallel with the second output voltage node.
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Patent Agency Ranking
公开(公告)号：US20180294732A1
公开(公告)日：2018-10-11
申请号：US15479885
申请日：2017-04-05
Applicant: Futurewei Technologies, Inc.
Inventor： Liming Ye , Heping Dai , Dianbo Fu
IPC: H02M3/335
CPC classification number: H02M3/33546 , H02M3/33569 , H02M3/337 , H02M2001/0058 , H02M2001/007 , H02M2001/0074 , H02M2001/0077 , Y02B70/1433
Abstract: In an Input-Series-Output-Parallel (ISOP)-type power converter circuit, a DC-to-DC converter has a positive input coupled to a DC power source and a negative input connected to a negative output. A plurality of capacitors are coupled in series between a positive output of the converter and a circuit ground, the negative output of the converter coupled to a common node of first and second capacitors. A half-bridge inverter network is coupled between the positive output and a circuit ground, each inverter having an input respectively coupled to the first capacitor and the second capacitor. A plurality of resonant tanks are coupled to an output of a respective one of first and second half-bridge inverters. A transformer is coupled to outputs of the plurality of resonant tanks. A rectifier circuit is coupled to a secondary winding of the transformer to provide a DC output voltage.
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公开(公告)号：US09793810B2
公开(公告)日：2017-10-17
申请号：US14850125
申请日：2015-09-10
Applicant: Futurewei Technologies, Inc.
Inventor： Dianbo Fu , Jinbo Huang , Ce Liu , Liming Ye , Heping Dai , Daoshen Chen
IPC: H02M3/158
CPC classification number: H02M3/1582 , H02M2001/0058 , Y02B70/1491
Abstract: A method comprises providing a buck-boost converter comprising a first high-side switch and a first low-side switch connected in series across an input capacitor, a second high-side switch and a second low-side switch connected in series across an output capacitor and an inductor coupled between a common node of the first high-side switch and the first low-side switch, and a common node of the second high-side switch and the second low-side switch, detecting a first voltage resonance waveform across a switch of the buck-boost converter and turning on the switch of the buck-boost converter when the first voltage resonance waveform falls to zero.
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公开(公告)号：US09787200B2
公开(公告)日：2017-10-10
申请号：US15061717
申请日：2016-03-04
Applicant: Futurewei Technologies, Inc.
Inventor： Dianbo Fu , Heping Dai , Liming Ye , Daoshen Chen
CPC classification number: H02M3/33546 , H02M3/33576 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491
Abstract: A method comprises detecting a signal representing a drain-to-source voltage of a switch of a synchronous rectifier of an inductor-inductor-capacitor (LLC) resonant converter, comparing the signal with a predetermined threshold, generating a first logic state if the drain-to-source voltage is greater than the predetermined threshold, generating a second logic state if the drain-to-source voltage is less than the predetermined threshold and in response to the first logic state and the second logic state, adjusting a switching frequency of the LLC resonant converter such that the switching frequency moves back and forth across a boundary of body diode conduction, wherein a frequency difference between the switching frequency and a resonant frequency of the LLC resonant converter is less than or equal to one frequency adjustment step.
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公开(公告)号：US20170207707A1
公开(公告)日：2017-07-20
申请号：US15477504
申请日：2017-04-03
Applicant: Futurewei Technologies, Inc.
Inventor： Heping Dai , Liming Ye , Dianbo Fu , Daoshen Chen
CPC classification number: H02M3/3372 , H02M3/07 , H02M3/1582 , H02M3/18 , H02M3/33576 , H02M3/337 , H02M2001/0058 , H02M2001/007 , Y02B70/1433 , Y02B70/1491
Abstract: An apparatus comprises an isolated power converter coupled to an input dc power source, wherein the isolated power converter comprises a first switch network coupled to a first transformer winding and a second switch network coupled to a second transformer winding and a non-isolated power converter coupled to the second switch network of the isolated power converter, wherein a current flowing through the non-isolated power converter is a fraction of a current flowing through the isolated power converter.
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公开(公告)号：US20170063251A1
公开(公告)日：2017-03-02
申请号：US14836630
申请日：2015-08-26
Applicant: Futurewei Technologies, Inc.
Inventor： Liming Ye , Heping Dai , Dianbo Fu
CPC classification number: H02M3/33576 , H02M7/483 , H02M2001/0058 , Y02B70/1491
Abstract: A converter is provided. The converter includes a first DC/DC converter, a non-isolated DC/DC converter and a control circuit. The first DC/DC converter includes a transformer, a primary side inverter and a secondary side rectifier. The primary side inverter and a secondary side rectifier are operable at multiple operating modes. The control circuit determines an operating mode for the primary side inverter or the secondary side rectifier, and controls the primary side inverter or the secondary side rectifier to change its respective operating mode.
Abstract translation: 提供A转换器。 该转换器包括第一DC / DC转换器，非隔离DC / DC转换器和控制电路。 第一DC / DC转换器包括变压器，初级侧逆变器和次级侧整流器。 初级侧逆变器和次级侧整流器可在多种工作模式下工作。 控制电路确定初级侧逆变器或次级侧整流器的工作模式，并控制一次侧逆变器或次级侧整流器来改变其相应的工作模式。
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