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公开(公告)号：US11671032B2
公开(公告)日：2023-06-06
申请号：US17048279
申请日：2018-04-20
IPC分类号： H02M7/539 , H02M7/5395 , G01R19/165 , H02M1/32 , H02M1/00 , H02M7/48
CPC分类号： H02M7/5395 , G01R19/16538 , H02M1/32 , H02M1/0009 , H02M1/0058 , H02M1/327 , H02M7/4818
摘要： A control method of controlling a resonance type power conversion device including a voltage resonance circuit is provided. The voltage resonance circuit comprising, a choke coil connected to input power supply, a first switching element connected to the choke coil, a capacitor connected in parallel to the first switching element, and a resonance circuit connected between a connection point and an output terminal, the connection point being a point at which the choke coil and the first switching element are connected. The control method comprising, detecting a polarity of current flowing through parallel circuit connected in parallel to the first switching element by using a sensor included in the voltage resonance circuit; and controlling an operating condition of the first switching element depending on a polarity of the current detected by the sensor.
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公开(公告)号：US20240275213A1
公开(公告)日：2024-08-15
申请号：US18647050
申请日：2024-04-26
申请人： NYXOAH S.A.
发明人： Carsten Müeller , Timo Koch
IPC分类号： H02J50/12 , A61B1/00 , A61B5/00 , A61N1/36 , A61N1/378 , H02J50/80 , H02M1/00 , H02M3/00 , H02M3/335 , H02M7/48 , H03J3/02
CPC分类号： H02J50/12 , A61B1/00016 , A61B1/00029 , A61B5/0031 , A61N1/36125 , A61N1/3787 , H02J50/80 , H02M3/01 , H02M3/015 , H02M3/33571 , H03J3/02 , H02M1/0058 , H02M7/4818 , Y02B70/10
摘要： Exemplary embodiments relate to a control circuit for a base station for transmitting energy to a receiver by means of an electric resonant circuit. The control circuit comprises an evaluation device which is designed to compare energy that has been transmitted to a receiver resonant circuit of the receiver with an energy set value. The control circuit is designed to alter the energy input into the receiver resonant circuit of the receiver by altering a resonant frequency of the resonant circuit on the basis of the result of the comparison.
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3.发明公开公开(公告)号：US20230318441A1
公开(公告)日：2023-10-05
申请号：US18191823
申请日：2023-03-28
申请人： AUDI AG
IPC分类号： H02M1/15 , H02P27/06 , H02M7/48 , H02M7/5387 , H01M10/42 , H01M8/04 , B60L53/20 , B60L50/70 , B60L50/60
CPC分类号： H02M1/15 , H02P27/06 , H02M7/4818 , H02M7/5387 , H01M10/4264 , H01M8/04 , B60L53/20 , B60L50/70 , B60L50/60 , H01M2220/20 , H01M2250/20
摘要： An electrical circuit arrangement is provided comprising an inverter and a filter device, wherein the filter device comprises a control device and an electrical filter circuit hooked up in parallel with a direct current side of the inverter in a direct current subnetwork, wherein at least one resonance frequency of the filter circuit is adjustable, and wherein the control device is designed to actuate the filter circuit in order to adjust the resonance frequency in dependence on at least one piece of load information describing an alternating current load in the direct current subnetwork.
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公开(公告)号：US11736027B2
公开(公告)日：2023-08-22
申请号：US17435775
申请日：2020-03-12
申请人： SAFRAN
CPC分类号： H02M3/33584 , H02M7/219 , H02M7/4818
摘要： A power conversion system for an aircraft on-board power system converts high voltage DC to low voltage DC and vice versa. The system includes switching means configured so that the system operates in a plurality of configurations, each forming an isolated DC/DC converter.
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公开(公告)号：US20240235419A1
公开(公告)日：2024-07-11
申请号：US18127703
申请日：2023-03-29
发明人： Boyko Valchev
CPC分类号： H02M7/4818 , H02M7/537
摘要： A resonant converter includes a high-side switch and a low-side switch, both coupled to a common node and driven by a complementary input signal. The common node drives a coupled inductor, the coupled inductor connected in parallel with a variable impedance. The coupled inductor may be coupled in series with a capacitor and a transformer. The variable impedance may be adjusted to modify the resonant frequency of the resonant converter.
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公开(公告)号：US11955894B2
公开(公告)日：2024-04-09
申请号：US18166166
申请日：2023-02-08
申请人： Silanna Asia Pte Ltd
发明人： Aleksandar Radic
CPC分类号： H02M3/33507 , H02M7/48 , H02M7/4818
摘要： A quasi-resonant auto-tuning controller includes a zero-voltage crossing detection circuit and a valley tuning finite-state machine having a look-up table. The zero-voltage crossing detection circuit receives a reference voltage and receives an auxiliary signal from an auxiliary winding. The zero-voltage crossing detection circuit produces a comparison signal having pulses when the auxiliary signal is less than the reference voltage. The valley tuning finite-state machine produces a divided pulse width based on the comparison signal, stores the divided pulse width of each pulse in the look-up table, determines, from the comparison signal, that the auxiliary signal is less than the reference voltage, waits a time period corresponding to the divided pulse width stored in the look-up table if the auxiliary signal is less than the reference voltage, and produces a valley point signal after waiting the time period.
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公开(公告)号：US11750091B2
公开(公告)日：2023-09-05
申请号：US17232004
申请日：2021-04-15
发明人： Richard Morrison
CPC分类号： H02M3/01 , H02M1/008 , H02M1/44 , H02M3/33571 , H02M7/4818
摘要： This disclosure describes systems, methods, and apparatus for controlling a voltage provided to a plurality of configurable output modules using a resonant converter, the resonant converter comprising: an inverter circuit; a resonant capacitor bridge coupled across the inverter circuit; N groups of output modules, each of the N groups comprising terminals configured for coupling to up to M output modules, the output modules each comprising: a transformer having a primary and a secondary; and a rectified output coupled to the secondary and configured for coupling to a load; and a resonant inductor network configured to be coupled between the resonant capacitor bridge and the primaries of the transformers, the resonant inductor network comprising: at least one parallel inductor; and N parallel branches arranged in parallel and each branch comprising a series inductor, each of the series inductors configured for transformer-coupling to up to M output modules.
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8.发明公开公开(公告)号：US20230231496A1
公开(公告)日：2023-07-20
申请号：US18155911
申请日：2023-01-18
申请人： Robert Bosch GmbH
IPC分类号： H02M7/53846 , H02M7/48 , H02M1/00
CPC分类号： H02M7/538466 , H02M1/0041 , H02M7/4818
摘要： An inverter. The inverter includes a first and second transistors, which are a high-side transistor and a low-side transistor of the inverter, and control electronics configured to trigger a first switching operation, in which the first transistor is switched on, wherein the second transistor is in a switched-off state, wherein a parasitic capacitance of the first transistor is discharged during the first switching operation, to trigger a second switching operation, in which the first transistor is switched off or switched on again, wherein the second transistor simultaneously remains in the switched-off state, wherein the parasitic capacitance of the first transistor is already discharged in the second switching operation, to record a time difference which describes a difference between a duration of the first switching operation and a duration of the second switching operation, and to determine a characteristic operating parameter of the first transistor based on the time difference.
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公开(公告)号：US20230170818A1
公开(公告)日：2023-06-01
申请号：US18158629
申请日：2023-01-24
发明人： Akio TOBA
IPC分类号： H02M5/458 , H02M7/48 , H02M7/5395 , H02M1/08 , B60L50/51
CPC分类号： H02M5/458 , B60L50/51 , H02M1/08 , H02M7/4818 , H02M7/5395 , B60L2200/10 , B60L2210/20 , B60L2210/40
摘要： A power conversion system in which a converter and an inverter are coupled to each other via a DC coupling unit that has an inductance component is provided. A switching frequency of each of the converter and the inverter is set to be the same and the switching frequency is set to be higher than a resonance frequency of a resonance circuit that includes a first capacitor, a second capacitor, and the DC coupling unit such as a cable. A switching operation of at least one of the converter or the inverter is controlled such that phases of predetermined components of voltage ripples, at the first capacitor and the second capacitor, that are respectively generated by switching operations of the converter and the inverter are substantially matched.
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公开(公告)号：US12009755B2
公开(公告)日：2024-06-11
申请号：US17581039
申请日：2022-01-21
申请人： SHIMADZU CORPORATION
发明人： Naoki Yasuda
IPC分类号： H02M3/338 , H01J37/32 , H02M7/00 , H02M7/48 , H02M7/5383
CPC分类号： H02M3/3385 , H01J37/321 , H01J37/32174 , H02M7/003 , H02M7/4815 , H02M7/4818 , H02M7/5383
摘要： Provided is a high-frequency power supply device capable of causing an appropriate current to flow through a transformer. A self-oscillation high-frequency power supply device is provided with a DC power supply, an LC resonant circuit, a switching circuit, and a transformer. The LC resonant circuit includes an induction coil for plasma generation and a capacitor. The switching circuit includes a semiconductor element, the switching circuit being configured to subject DC power supplied from the DC power supply to switching processing to supply high-frequency power to the LC resonant circuit. The transformer includes a primary coil included in the LC resonant circuit and a secondary coil connected to the semiconductor element to turn on/off a semiconductor element. The transformer has a coaxial structure in which the primary coil and the secondary coil are coaxially provided. The LC resonant circuit includes a resistor connected in parallel to the primary coil.
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