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公开(公告)号：US11063443B2
公开(公告)日：2021-07-13
申请号：US16100931
申请日：2018-08-10
发明人： Xiaobo Xue
摘要： A resonance-type contactless power supply has the characteristic that an inductor current has a maximum value when it operates at a resonance frequency. Sampling values of the inductor current in two successive cycles are compared with each other. A frequency of an inverter circuit is adjusted in a manner the same as that in a previous cycle in a case that the inductor current increases, and is adjusted in a manner opposite to that in the previous cycle in a case that the inductor current decreases. Thus, the resonance-type contactless power supply can be properly tuned without the need for zero-crossing detection.
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公开(公告)号：US20210207421A1
公开(公告)日：2021-07-08
申请号：US17142759
申请日：2021-01-06
申请人： Masonite Corporation
摘要： A door system comprises a door frame adapted to be mounted within an opening, a door pivotally attached to the door frame, an AC/DC converter operably associated with the door frame, a DC electric device mounted to the door, at least one sensor mounted to the door frame or the door, and a power management controller configured to receive an input from the at least one sensor and send a command to the DC electric device. The AC/DC converter is configured to be electrically connected to an AC power unit disposed outside the door system. The DC electric device is electrically connected to the AC/DC converter.
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公开(公告)号：US11050263B2
公开(公告)日：2021-06-29
申请号：US16018521
申请日：2018-06-26
发明人： Chisung Bae , Sang Joon Kim
摘要： A method of controlling power on a low-power device and the low-power device for performing the method are provided. The method includes performing a first operation, of acquiring sensing data, using power stored in an internal battery of the low-power device, wherein the first operation consumes a first power consumption from the internal battery; and performing a second operation, with respect to the acquired sensing data, and which consumes a second power consumption, using power wirelessly transmitted from an external device located outside of the low-power device, wherein the second power consumption is greater than the first power consumption.
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公开(公告)号：US11050259B2
公开(公告)日：2021-06-29
申请号：US15983910
申请日：2018-05-18
摘要： A power supply device includes a photovoltaic power generator, a secondary battery unit, a charger configured to supply power from the photovoltaic power generator to the secondary battery unit, a DC-AC power conversion circuit configured to convert a discharge output of the secondary battery unit into AC power, and a control device configured to control charging of the secondary battery unit based on a load power prediction obtained by a moving average of used power and an amount of power generated by the photovoltaic power generator and perform control to switch output of the amount of power generated by the photovoltaic power generator between the secondary battery unit and a commercial system power based on a value of state of charge (SOC) of the secondary battery unit.
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公开(公告)号：US10998734B2
公开(公告)日：2021-05-04
申请号：US15115245
申请日：2015-01-09
发明人： Jialiang Zhang
摘要： A power adapter and a terminal are provided. The power adapter includes a power conversion component and a charging interface, the charging interface including a power line; the power conversion component is configured to form a charging loop with a terminal via the power line, for charging a battery of the terminal. The power adapter further includes a communication component, the charging interface further comprises a data line; during a coupling of the power adapter to the terminal, the communication component is configured to perform a bidirectional communication with the terminal via the data line.
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公开(公告)号：US10985619B2
公开(公告)日：2021-04-20
申请号：US16445752
申请日：2019-06-19
发明人： John Walley , Jeyhan Karaoguz , Ahmadreza (Reza) Rofougaran , Nambirajan Seshadri , Reinier Van Der Lee
IPC分类号： H02J50/80 , H02J50/12 , H04B5/00 , G06K7/10 , G06K19/07 , H02J7/02 , H04L29/06 , H02J5/00 , H02J50/40
摘要： A wireless power system includes a primary device and a secondary device. The primary device includes a power conversion unit, a function module, and a transceiver. The peripheral device includes a wireless power receiver circuit, a peripheral transceiver, and a peripheral unit. The power conversion unit converts a power source into an electromagnetic signal. The functional module executes a function regarding peripheral information. The transceiver communicates information regarding the electromagnetic signal and the peripheral information. The wireless power receiver circuit converts the electromagnetic signal into a voltage. The peripheral transceiver communicates the information regarding the electromagnetic signal and the peripheral information. The peripheral unit processes the peripheral information.
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公开(公告)号：US10978916B2
公开(公告)日：2021-04-13
申请号：US16541896
申请日：2019-08-15
摘要： A power transmission device includes an inverter, an oscillator, a foreign substance detector, and power transmission control circuitry. The foreign substance detector performs a series of multiple processes to determine whether or not a foreign substance is present between two resonators. The power transmission control circuitry repeats a foreign substance detection period and a power transmission period alternately. The foreign substance detection period is a period in which the foreign substance detector performs one of the series of multiple processes. The power transmission period is a period in which the inverter transmits AC power. The power transmission control circuitry also causes the foreign substance detector to divide the series of multiple processes and determine whether or not the foreign substance is present as a result of performing all of the divided series of multiple processes.
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公开(公告)号：US10967740B2
公开(公告)日：2021-04-06
申请号：US15864633
申请日：2018-01-08
IPC分类号： B60L5/00 , H02J50/40 , H02J50/12 , H02J50/70 , H02J7/02 , H01F27/36 , H01F38/14 , B60M3/04 , B60M7/00 , H02M5/293 , H05K9/00 , H02J5/00
摘要： This invention relates to a wireless vehicle recharging apparatus for an energy storage element of a vehicle. The apparatus has at least one drive unit arrangement coupled to at least one drive coil arrangement disposed for generating a magnetic field extending from the drive coil arrangement, and includes a corresponding vehicle-mounted pickup coil arrangement coupled to a power conditioning circuit arrangement for receiving the extending magnetic field. The drive unit arrangement is operable to excite the drive coil arrangement at a fundamental frequency and the drive coil arrangement is implemented to be substantially devoid of ferromagnetic components for providing a path for the extending magnetic field. Additional aspects of the invention relate to vehicle power coupling apparatus including pickup coil arrangements.
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公开(公告)号：US10960784B2
公开(公告)日：2021-03-30
申请号：US15427370
申请日：2017-02-08
发明人： Dirk Herke , Ralf Oestreicher , Volker Reber , Anja Heinzelmann
摘要： A method for supplying a number of electric charging stations with electricity, wherein AC voltage provided by an electricity source is transformed into a prescribed AC voltage level by at least one transformer via at least one star winding and at least one delta winding and subsequently routed via AC voltage lines to the number of electric charging stations and converted directly to direct current in respective charging stations from the number of electric charging stations locally by at least two rectifiers of the charging stations.
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公开(公告)号：US10958254B1
公开(公告)日：2021-03-23
申请号：US16738184
申请日：2020-01-09
申请人： Raytheon Company
发明人： Stephen Kuznetsov
摘要： An electrical machine includes as part of its stator XRAM windings for multiplying current output of the machine. The XRAM windings are coupled to switching elements that are configured to produce current multiplication for output to an external load. The XRAM windings may be in slots in the stator, or may be elsewhere in the stator, operatively coupled to other windings in the stator. The stator may be operatively coupled to a rotor and hence to an inertial energy source, such as a flywheel on the same shaft as the elements of the electrical machine. Short circuiting of select windings of the machine can advantageously cause a shifting and concentration of a machine airgap flux of the machine over other windings, and increasing their magnetic storage energy.
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