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Patent Agency Ranking
公开(公告)号：US09935462B2
公开(公告)日：2018-04-03
申请号：US15007486
申请日：2016-01-27
Applicant: Macau University of Science and Technology
Inventor： Xiaodong Li
CPC classification number: H02J3/38 , H02J3/32 , H02J3/386 , H02J7/34 , H02M3/33584 , Y02E10/763 , Y02E10/766 , Y02E70/30
Abstract: A method for controlling an operation of a converter circuit adapted to regulate power transfer between a first voltage source and a second voltage source includes detecting a first voltage level of the first voltage source and a second voltage level of the second voltage source; calculating a power value based on the detected first voltage level and the detected second voltage level; comparing the calculated power value with a reference power value; and determining switching time of one or more switches in the converter circuit based on a compared result so as to regulate power transfer between the first voltage source and the second voltage source.
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公开(公告)号：US09748853B1
公开(公告)日：2017-08-29
申请号：US15339943
申请日：2016-11-01
Applicant: Macau University of Science and Technology
Inventor： Xiaodong Li
CPC classification number: H02M3/33546 , H02J7/0052 , H02M1/14 , H02M3/33576 , H05B33/0815
Abstract: One example embodiment is a method executed by a microcontroller with a Pulse Width Modulation (PWM) circuit to control a semi-dual-active-bridge (SDAB) converter that includes a first side bridge circuit, a second side bridge circuit and a transformer. The microcontroller determines a current operation mode and a target operation mode of the SDAB converter. The microcontroller determines an optimal ratio and calculates changes of each gating signal that are applied to the first side bridge circuit and the second side bridge circuit respectively.
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公开(公告)号：US09515504B2
公开(公告)日：2016-12-06
申请号：US14622934
申请日：2015-02-16
Applicant: Macau University of Science and Technology
Inventor： Xiaodong Li , Song Hu
CPC classification number: H02J7/0052 , H02J7/022 , H02M1/42 , H02M1/4258 , H02M3/33576 , H02M3/337 , Y02B40/90 , Y02B70/126 , Y02B70/1433
Abstract: A battery charger with power factor correction is provided. In particular, the battery charger is configured to work in a discontinuous current mode with a power factor that is almost unity but no bulky electrolytic capacitor is needed in the charger. The charger has a rectification circuit producing a rectified voltage to a first controllable switching circuit, whose output is fed to a series resonant tank series-connecting a first winding of a high-frequency transformer. The second winding thereof is connected to a second controllable switching circuit, whose output is a DC voltage for battery charging. The charger includes a control unit for generating a first control signal and a second control signal to control the first and the second controllable switching circuits, respectively, such that the current flowing in the first winding is substantially phase-aligned with the first control signal's waveform, thereby facilitating power factor correction.
Abstract translation: 提供功率因数校正的电池充电器。 特别地，电池充电器被配置为工作在不连续电流模式，功率因数几乎是一致的，但在充电器中不需要体积大的电解电容器。 充电器具有向第一可控开关电路产生整流电压的整流电路，其输出被馈送到串联连接高频变压器的第一绕组的串联谐振槽。 其第二绕组连接到第二可控开关电路，其输出是用于电池充电的DC电压。 充电器包括用于产生第一控制信号的控制单元和用于分别控制第一和第二可控开关电路的第二控制信号，使得在第一绕组中流动的电流基本上与第一控制信号波形相对齐 ，从而促进功率因数校正。
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公开(公告)号：US20170244329A1
公开(公告)日：2017-08-24
申请号：US15048157
申请日：2016-02-19
Applicant: Macau University of Science and Technology
Inventor： Xiaodong Li
IPC: H02M3/335
CPC classification number: H02M3/3376 , H02M3/33592 , H02M2001/0058 , Y02B70/1433 , Y02B70/1475 , Y02B70/1491
Abstract: A converter circuit regulating power transfer from a power source to a load includes a first switching circuit arranged to be connected across an output of the power source, and including a plurality of switches. A second switching circuit including a plurality of switches is arranged to be connected across an input of the load. An inductive component electrically connects the first switching circuit with the second switching circuit. A controller is operably connected with the plurality of switches in both the first and second switching circuits, and receives a control signal for controlling switching of the plurality of switches in both the first and second switching circuit; generates gating signals to be provided to the plurality of switches in both the first and second switching circuit based on the control signal; and provide the gating signals to the plurality of switches in both the first and second switching circuit.
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公开(公告)号：US20170214321A1
公开(公告)日：2017-07-27
申请号：US15007486
申请日：2016-01-27
Applicant: Macau University of Science and Technology
Inventor： Xiaodong Li
IPC: H02M3/335
CPC classification number: H02J3/38 , H02J3/32 , H02J3/386 , H02J7/34 , H02M3/33584 , Y02E10/763 , Y02E10/766 , Y02E70/30
Abstract: A method for controlling an operation of a converter circuit adapted to regulate power transfer between a first voltage source and a second voltage source includes detecting a first voltage level of the first voltage source and a second voltage level of the second voltage source; calculating a power value based on the detected first voltage level and the detected second voltage level; comparing the calculated power value with a reference power value; and determining switching time of one or more switches in the converter circuit based on a compared result so as to regulate power transfer between the first voltage source and the second voltage source.
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