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1.发明授权公开(公告)号：US11862993B1
公开(公告)日：2024-01-02
申请号：US17856546
申请日：2022-07-01
摘要： An apparatus for a high-power reflexive field containment circuit topology for dynamic wireless power transfer systems is disclosed. A wireless power transfer (“WPT”) charging apparatus includes an inverter configured to connect with a direct current (“DC”) source on an input side and one or more WPT charging branches. Each WPT charging branch includes a WPT charging pad circuit with a WPT charging pad connected in series with a first series charging capacitor, a parallel charging capacitor connected in parallel with the WPT charging pad circuit, and a series charging impedance connected in series between an output of the inverter and a connection between the WPT charging pad circuit and the parallel charging capacitor. The series charging impedance includes a second series charging capacitor and/or a series charging inductor.
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公开(公告)号：US11646671B1
公开(公告)日：2023-05-09
申请号：US17499735
申请日：2021-10-12
IPC分类号： H02M7/5395 , H02M5/293 , H02M5/22 , H02M1/42 , H02M1/00
CPC分类号： H02M5/2932 , H02M1/4216 , H02M5/225 , H02M7/5395 , H02M1/007
摘要： An power converter includes an unfolder connected to a three-phase source and has an output connection with a positive terminal, a negative terminal and a neutral terminal. The unfolder creates two unipolar piece-wise sinusoidal DC voltage waveforms offset by a half of a period. A three-input converter connected to the unfolder produces a quasi-sinusoidal output voltage across output terminals. Switches of the converter selectively connect the positive, negative and neutral inputs across the output terminals. A PWM controller controls a first duty ratio and a second duty ratio for the converter based on a phase angle of the source and a modulation index generated from an error signal related to a control variable. The duty ratios are time varying with a fundamental frequency of the source. The modulation index relates to output voltage of the converter, peak voltage or current of the source and/or peak current at the output terminals.
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3.发明公开公开(公告)号：US20240006928A1
公开(公告)日：2024-01-04
申请号：US17856546
申请日：2022-07-01
摘要： An apparatus for a high-power reflexive field containment circuit topology for dynamic wireless power transfer systems is disclosed. A wireless power transfer (“WPT”) charging apparatus includes an inverter configured to connect with a direct current (“DC”) source on an input side and one or more WPT charging branches. Each WPT charging branch includes a WPT charging pad circuit with a WPT charging pad connected in series with a first series charging capacitor, a parallel charging capacitor connected in parallel with the WPT charging pad circuit, and a series charging impedance connected in series between an output of the inverter and a connection between the WPT charging pad circuit and the parallel charging capacitor. The series charging impedance includes a second series charging capacitor and/or a series charging inductor.
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公开(公告)号：US20230128630A1
公开(公告)日：2023-04-27
申请号：US17499735
申请日：2021-10-12
IPC分类号： H02M5/293 , H02M5/22 , H02M1/42 , H02M7/5395
摘要： An power converter includes an unfolder connected to a three-phase source and has an output connection with a positive terminal, a negative terminal and a neutral terminal. The unfolder creates two unipolar piece-wise sinusoidal DC voltage waveforms offset by a half of a period. A three-input converter connected to the unfolder produces a quasi-sinusoidal output voltage across output terminals. Switches of the converter selectively connect the positive, negative and neutral inputs across the output terminals. A PWM controller controls a first duty ratio and a second duty ratio for the converter based on a phase angle of the source and a modulation index generated from an error signal related to a control variable. The duty ratios are time varying with a fundamental frequency of the source. The modulation index relates to output voltage of the converter, peak voltage or current of the source and/or peak current at the output terminals.
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公开(公告)号：US11736031B2
公开(公告)日：2023-08-22
申请号：US17968701
申请日：2022-10-18
IPC分类号： H02M7/5395 , H02M5/293 , H02M5/22 , H02M1/42 , H02M1/00
CPC分类号： H02M5/2932 , H02M1/4216 , H02M5/225 , H02M7/5395 , H02M1/007
摘要： A power converter includes an unfolder connected to a three-phase source and has an output connection with three output terminals. A three-input converter connected to the unfolder produces a quasi-sinusoidal output voltage across converter output terminals. Switches of the converter selectively connect each of the three output terminals across the converter output terminals. A pulse-width modulation controller controls a first duty ratio and a second duty ratio for the converter based on a phase angle of the source and a modulation index generated from an error signal related to a control variable. The duty ratios are time varying at a rate related to a fundamental frequency of the source. The modulation index relates to output voltage of the converter, peak voltage or current of the source and/or peak current at the output terminals.
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公开(公告)号：US20230128970A1
公开(公告)日：2023-04-27
申请号：US17968701
申请日：2022-10-18
IPC分类号： H02M5/293 , H02M1/42 , H02M5/22 , H02M7/5395
摘要： A power converter includes an unfolder connected to a three-phase source and has an output connection with three output terminals. A three-input converter connected to the unfolder produces a quasi-sinusoidal output voltage across converter output terminals. Switches of the converter selectively connect each of the three output terminals across the converter output terminals. A pulse-width modulation controller controls a first duty ratio and a second duty ratio for the converter based on a phase angle of the source and a modulation index generated from an error signal related to a control variable. The duty ratios are time varying at a rate related to a fundamental frequency of the source. The modulation index relates to output voltage of the converter, peak voltage or current of the source and/or peak current at the output terminals.
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