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1. 发明申请

US20230126710A1 Variable Gain Modulation Methods and Controllers for AC-DC Converter with Power Factor Correction 有权
公开(公告)号：US20230126710A1
公开(公告)日：2023-04-27
申请号：US17973616
申请日：2022-10-26
申请人： Queen's University at Kingston
发明人： Yan-Fei Liu , Binghui He , Yang Chen , Bo Sheng , Wenbo Liu
IPC分类号： H02M1/42 , H02M7/04
摘要： A controller for an AC-DC converter including a rectifier circuit that converts AC input voltage into DC output voltage uses control logic to control the rectifier circuit according to two or more operating modes. Each operating mode determines a gain of the rectifier circuit. The controller selects an operating mode from the two or more operating modes based on at least one of an AC input voltage value and a required DC output voltage value. The AC-DC converter provides a wide range of DC output voltage with power factor correction. The controller may be used with AC-DC converter topologies such as boost converter, isolated boost converter, PWM converter, LLC resonant converter, and LCC resonant converter.

2. 发明授权

US11626734B2 Energy management system for a recreational vehicle 有权
公开(公告)号：US11626734B2
公开(公告)日：2023-04-11
申请号：US17568878
申请日：2022-01-05
申请人： Paul Spivak
发明人： Paul Spivak
IPC分类号： H02J3/14 , B60R16/03 , H02M7/04
摘要： An energy management system for a recreational vehicle incudes a housing; a plurality of outputs, each output having an associated electrical parameter; and a circuit assembly arranged within the housing. The circuit assembly includes a power converter configured to receive AC power and supply DC power to one or more of the outputs; a plurality of relays, each relay being associated with a corresponding output; and a controller configured to configured to perform a load shedding operation in response to a first load condition being satisfied. The first load condition requires that a total parameter is equal to or above a first predetermined load threshold, the total parameter being a total value of the associated electrical parameters of the outputs. The load shedding operation sequentially opens any closed relays according to a predetermined opening scheme until the total parameter is below the first predetermined load threshold.

3. 发明授权

US11609590B2 Power supply for electric utility underground equipment 有权
公开(公告)号：US11609590B2
公开(公告)日：2023-03-21
申请号：US16781837
申请日：2020-02-04
申请人： Sentient Technology Holdings, LLC
发明人： Dennis Allen Saxby
IPC分类号： G05F1/577 , H02H9/00 , H02M1/00 , H02G9/06 , H02M1/32 , H02M7/04 , H02M7/06 , G05F5/00 , G05F1/613
摘要： A power supply device may include a connector configured to electrically couple the power supply device to a conductor of the underground power lines; a voltage divider configured to receive an input voltage from the conductor, the voltage divider comprising a capacitor and divider voltage control electronics in series with the capacitor; and, a surge resistor in series with the capacitor and configured to provide impulse protection from surge events. The divider voltage control electronics may be configured to regulate an output voltage of the voltage divider to support variable loads on the voltage divider.

4. 发明授权

US11594979B1 Power adapter 有权
公开(公告)号：US11594979B1
公开(公告)日：2023-02-28
申请号：US16773493
申请日：2020-01-27
申请人： Vicor Corporation
发明人： Patrizio Vinciarelli , Andrew T. D'Amico
IPC分类号： H05K7/00 , H02M7/04 , H01R31/06 , H05K7/20 , H02M7/00 , H05K5/02
摘要： An efficient, high density, inline converter module includes a power conversion circuit and an input wiring harness for connecting the input of the power circuit to a unipolar source. A second wiring harness or electrical connectors may be provided for connecting the output of the power conversion circuit to a load. Connections between a wiring harness and the power conversion circuit may comprise conductive contacts, configured to distribute heat. The power circuit may be over molded to provide electrical insulation and efficient heat transfer to external ambient air. A DC transformer based inline converter module may be used in AC adapter, vehicular, and power system architectures. An input connector for connecting the input wiring harness to the input source may be provided. In some embodiments the input source may be an AC source and the input connector may comprise a rectifier for delivering a rectified, unipolar, voltage to the input of the power conversion assembly via an input wiring harness. By separating the rectifier from the power conversion assembly, the power conversion assembly may be packaged into a smaller volume than would be required if the rectifier, and its associated heat loss, were included in the power conversion assembly.

5. 发明授权

US11569754B2 Single-phase and three-phase compatible AC-DC conversion circuit and method of controlling charge and discharge thereof 有权
公开(公告)号：US11569754B2
公开(公告)日：2023-01-31
申请号：US17570065
申请日：2022-01-06
申请人： DELTA ELECTRONICS, INC.
发明人： Cheng-Te Li , Chih-Yuan Chuang
IPC分类号： H02M7/217 , H02M7/219 , H02M1/36 , H02M7/04 , H02M1/10
摘要： A single-phase and three-phase compatible AC-DC conversion circuit includes a first switching component, a second switching component, a third switching component, three switch bridge arms, a fourth switching component, a pre-charge resistor, a capacitor assembly, and a control unit. Each switch bridge arm has an upper switch and a lower switch connected in series. The fourth switching component is coupled between a first phase of a three-phase power source and a common-connected node of the switch bridge arm corresponding to a second phase of the three-phase power source. The control unit turns on the fourth switching component, turns on the upper switch coupled to the first switching component, and turns on the lower switch coupled to the fourth switching component to provide a discharge path so that the capacitor assembly discharges through the pre-charge resistor on the discharge path.

6. 发明申请

US20220393609A1 POWER SUPPLY MODULE AND TRANSFORMER POWER SUPPLY DEVICE 有权
公开(公告)号：US20220393609A1
公开(公告)日：2022-12-08
申请号：US17664649
申请日：2022-05-23
申请人： Delta Electronics (Shanghai) Co.,Ltd.
发明人： Pengkai JI , Yuan ZHOU
IPC分类号： H02M7/219 , H01F38/26 , H02M7/04 , H01F27/24 , H01F27/28 , H01F27/29
摘要： A power supply module includes a power supply submodule, a plurality of pins, and a second winding unit. The power supply submodule includes a switch, a magnetic core assembly, and a first winding unit including a first winding portion and a second winding portion. The second winding unit includes a third winding portion connected to the first winding portion via some of the plurality of pins to form a first winding, and a fourth winding portion connected to the second winding portion via some of the plurality of pins to form a second winding. The magnetic core assembly, at least the first winding, and the second winding form a magnetic element. The switch is disposed on and electrically connected to the magnetic element. At least one of the plurality of pins is an output pin via which the power supply module powers an intelligent IC load.

7. 发明授权

US11509212B2 Switched-mode power supply with voltage limitation 有权
公开(公告)号：US11509212B2
公开(公告)日：2022-11-22
申请号：US17160635
申请日：2021-01-28
申请人： SIEMENS AKTIENGESELLSCHAFT
发明人： Carsten Braun , Joerg Braune
IPC分类号： H02M1/44 , H02M1/12 , H02M1/32 , H02M7/04
摘要： A switched-mode power supply has a rectifier device, a switching unit which is arranged downstream of the rectifier device, a transmission device which is arranged downstream of the switching unit and a filter device. In order to reduce the sensitivity of the switched-mode power supply to high-energy interferences, it is proposed that the filter device contains a current-compensated choke coil which is connected to a voltage limiter circuit in such a way that in the case of interference signals applied to the choke coil, a damping of the interference signals takes place by way of the voltage limiter circuit.

8. 发明申请

US20220368806A1 POWER SUPPLY DEVICE AND IMAGE FORMING APPARATUS 有权
公开(公告)号：US20220368806A1
公开(公告)日：2022-11-17
申请号：US17718562
申请日：2022-04-12
申请人： CANON KABUSHIKI KAISHA
发明人： Yuya Hirano
IPC分类号： H04N1/00 , H02M7/04
摘要： A power supply device includes a transformer including a primary winding, a secondary winding and an auxiliary winding, first, second and third circuits, and a switch. The first circuit in which a first capacitor and a first rectifier are connected in series is connected to the primary winding in parallel. The switch of which one end is connected to one end of the primary winding. The second circuit in which the auxiliary winding and a second rectifier are connected in serial is connected between a connecting point, to which the first capacitor and the first rectifier are connected, and the other end of the switch. The third circuit including a resistor and a third rectifier is connected to a gate of the switch. In the third circuit, a resistance value in a direction where a current flows into the gate of the switch is smaller than that in a direction where the current flows out of the gate.

9. 发明授权

US11482942B2 Single phase operation of three phase regenerative drives 有权
公开(公告)号：US11482942B2
公开(公告)日：2022-10-25
申请号：US15799387
申请日：2017-10-31
申请人： OTIS ELEVATOR COMPANY
发明人： Ismail Agirman
IPC分类号： H02P6/06 , H02M5/458 , B66B1/30 , H02P27/08 , H02M7/04 , H02M7/00 , B66B1/00 , H02M5/00 , H02M5/40 , H02P27/06 , H02M7/68
摘要： A three-phase regenerative drive configured for operation from a single phase alternating current (AC) power source, the three-phase regenerative drive including a three-phase converter having inputs for connection to a single-phase AC source, the three-phase converter having three phase legs, a three-phase inverter for connection to a motor, the three phase inverter configured to provide three phase command signals to the motor, and a DC bus connected between the three-phase converter and the three-phase inverter. A first phase leg of the three-phase converter and a second phase leg of the three-phase converter are employed to direct current from the single-phase AC source to the DC Bus and a third phase leg of the three phase legs of the three-phase converter returns current to a return of the AC source.

10. 发明授权

US11444548B2 Single-phase device-multiplexing active power decoupling cascaded rectifier and control method thereof 有权
公开(公告)号：US11444548B2
公开(公告)日：2022-09-13
申请号：US17275447
申请日：2020-06-19
申请人： SHANDONG UNIVERSITY
发明人： Chunshui Du
IPC分类号： H02M7/219 , H02M7/217 , H02M1/00 , H02M7/04
摘要： A single-phase device-multiplexing active power decoupling cascaded rectifier and control method thereof. The rectifier includes: n device-multiplexing active power decoupling H-bridge units that are cascaded, n≥2; each unit including: a bridge arm H1 and a bridge arm H2 connected in parallel, a decoupling capacitor branch formed by two capacitors connected in series, and a resistive load; a decoupling inductor being connected in series between a midpoint of the decoupling capacitor branch and a midpoint of bridge arm H2; and a bridge arm H1 of a first unit being sequentially connected in series to an inductor, resistor, and power supply, and then connected to a bridge arm H2 of a last unit. A power switch module of an H-bridge rectification unit is multiplexed, which not only realizes unit power factor rectification of the unit, but also provides a loop for secondary ripple power to achieve secondary ripple power decoupling control.

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