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公开(公告)号：US10554130B2
公开(公告)日：2020-02-04
申请号：US16212943
申请日：2018-12-07
Applicant: Futurewei Technologies, Inc.
Inventor： Liming Ye , Jinbo Huang , Heping Dai , Dianbo Fu , Daoshen Chen
Abstract: A method includes generating a first ramp signal for controlling a first portion of a converter, generating a second ramp signal for controlling a second portion of the converter, controlling a state of a first switch of the first portion through comparing the first ramp signal to a control signal and a state of a first switch of the second portion through comparing the second ramp signal to the control signal and determining a switching cycle of the converter through comparing a current flowing through an inductor of the converter to a threshold.
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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：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：US20160365790A1
公开(公告)日：2016-12-15
申请号：US14739827
申请日：2015-06-15
Applicant: Futurewei Technologies, Inc.
Inventor： Liming Ye , Jinbo Huang , Heping Dai , Dianbo Fu , Daoshen Chen
IPC: H02M3/158
CPC classification number: H02M3/1582 , H02M2001/0025 , H02M2001/0032 , H02M2001/0058 , Y02B70/1425 , Y02B70/1491 , Y02B70/16
Abstract: A method comprises generating a first ramp signal and a second ramp signal for controlling a buck converter portion and a boost converter portion of a buck-boost converter respectively, comparing the first ramp signal and the second ramp signal to a control signal, controlling the buck converter portion using the comparing the first ramp signal to the control signal and the boost converter portion using the comparing the second ramp signal to the control signal, comparing a current flowing through the inductor to a current threshold and terminating a switching cycle based upon the comparing the current flowing through the inductor to the current threshold.
Abstract translation: 一种方法包括：分别控制降压转换器部分和降压 - 升压转换器的升压转换器部分的第一斜坡信号和第二斜坡信号，将第一斜坡信号和第二斜坡信号与控制信号进行比较，控制降压 转换器部分，其使用将所述第二斜坡信号与所述控制信号进行比较来比较所述第一斜坡信号与所述控制信号和所述升压转换器部分，将流过所述电感器的电流与电流阈值进行比较，并基于所述比较结束开关周期 电流流过电感到电流阈值。
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公开(公告)号：US20160181920A1
公开(公告)日：2016-06-23
申请号：US14579644
申请日：2014-12-22
Applicant: Futurewei Technologies, Inc.
Inventor： Heping Dai , Liming Ye , Jinbo Huang , Dianbo Fu
IPC: H02M3/158
CPC classification number: H02M1/14 , H02M1/44 , H02M3/1582 , H02M2001/0054 , Y02B70/1425 , Y02B70/1491
Abstract: A method comprises detecting an input voltage and an output voltage of a buck-boost converter, wherein the buck-boost converter comprises 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 and configuring the buck-boost converter such that at least one of the first high-side switch and second low-side switch operates at a fixed duty cycle mode.
Abstract translation: 一种方法包括检测降压 - 升压转换器的输入电压和输出电压，其中所述降压 - 升压转换器包括在输入电容器上串联连接的第一高侧开关和第一低侧开关， 侧开关和第二低侧开关串联连接在输出电容器和耦合在第一高侧开关的公共节点和第一低侧开关之间的电感器以及第二高侧开关的公共节点 和第二低侧开关，并配置降压 - 升压转换器，使得第一高侧开关和第二低侧开关中的至少一个以固定的占空比模式工作。
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Patent Agency Ranking
公开(公告)号：US10476372B2
公开(公告)日：2019-11-12
申请号：US14579644
申请日：2014-12-22
Applicant: Futurewei Technologies, Inc.
Inventor： Heping Dai , Liming Ye , Jinbo Huang , Dianbo Fu
Abstract: A method comprises detecting an input voltage and an output voltage of a buck-boost converter, wherein the buck-boost converter comprises 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 and configuring the buck-boost converter such that at least one of the first high-side switch and second low-side switch operates at a fixed duty cycle mode.
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公开(公告)号：US20190123650A1
公开(公告)日：2019-04-25
申请号：US16212943
申请日：2018-12-07
Applicant: Futurewei Technologies, Inc.
Inventor： Liming Ye , Jinbo Huang , Heping Dai , Dianbo Fu , Daoshen Chen
IPC: H02M3/158
CPC classification number: H02M3/1582 , H02M2001/0025 , H02M2001/0032 , H02M2001/0058 , Y02B70/1425 , Y02B70/1491 , Y02B70/16
Abstract: A method includes generating a first ramp signal for controlling a first portion of a converter, generating a second ramp signal for controlling a second portion of the converter, controlling a state of a first switch of the first portion through comparing the first ramp signal to a control signal and a state of a first switch of the second portion through comparing the second ramp signal to the control signal and determining a switching cycle of the converter through comparing a current flowing through an inductor of the converter to a threshold.
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公开(公告)号：US09812968B2
公开(公告)日：2017-11-07
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
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.
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9.发明申请公开(公告)号：US20170077815A1
公开(公告)日：2017-03-16
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.
Abstract translation: 一种方法包括提供降压 - 升压转换器，其包括跨输入电容器串联连接的第一高侧开关和第一低侧开关，第二高侧开关和第二低侧开关串联连接在输出端 电容器和耦合在第一高侧开关的公共节点和第一低侧开关之间的电感器以及第二高侧开关和第二低侧开关的公共节点，检测第一高压侧开关的第一电压共振波形 降压 - 升压转换器的开关，并且当第一电压共振波形下降到零时，导通降压 - 升压转换器的开关。
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公开(公告)号：US10177661B2
公开(公告)日：2019-01-08
申请号：US14739827
申请日：2015-06-15
Applicant: Futurewei Technologies, Inc.
Inventor： Liming Ye , Jinbo Huang , Heping Dai , Dianbo Fu , Daoshen Chen
Abstract: A method comprises generating a first ramp signal and a second ramp signal for controlling a buck converter portion and a boost converter portion of a buck-boost converter respectively, comparing the first ramp signal and the second ramp signal to a control signal, controlling the buck converter portion using the comparing the first ramp signal to the control signal and the boost converter portion using the comparing the second ramp signal to the control signal, comparing a current flowing through the inductor to a current threshold and terminating a switching cycle based upon the comparing the current flowing through the inductor to the current threshold.
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