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公开(公告)号：US20230126186A1
公开(公告)日：2023-04-27
申请号：US17586512
申请日：2022-01-27
发明人： Cristian E. Anghel , Davendar Kashireddy , David C. Hodge , Yonghui Xu , David A. Knight , Karthik V. J. , Kumar Sakinala , Mohan B. M.
摘要： Systems and methods for voltage regulation of high voltage direct current systems are provided. In certain embodiments, a system includes a generator that generates alternating current (AC) voltage. The system further includes a power converter that converts the AC voltage into regulated direct current (DC) voltage. Also, the system includes a voltage regulator. In additional embodiments, the voltage regulator includes an AC voltage regulator that regulates the AC voltage generated by the generator. Also, the voltage regulator includes a DC voltage regulator that regulates the DC voltage produced by the power converter. Moreover, the voltage regulator includes a regulator selector that selectively activates one of the AC voltage regulator and the DC voltage regulator based on a current from the power converter and at least one of a voltage of the generator and a voltage of the power converter.
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公开(公告)号：US11594975B2
公开(公告)日：2023-02-28
申请号：US17697920
申请日：2022-03-17
发明人： Shiqiang Yu , Biao Lei , Shoudong Fu
摘要： The present disclosure provides a high-performance power supply of a wide output voltage range and a control method thereof. The high-performance power supply of a wide output voltage range includes M rectification branches and a serial to parallel conversion module. The technical solution of the present disclosure solves the problem in the prior art that it is still difficult to obtain a good performance within a full output voltage range under a wide output voltage requirement.
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公开(公告)号：US20220385174A1
公开(公告)日：2022-12-01
申请号：US17471920
申请日：2021-09-10
申请人： SOLUM CO., LTD.
发明人： Chang Yong Kwon , Dong Kyun RYU , Yun Sic BANG
摘要： Provided is a coil structure including an inductor coil having a self-bonding wire structure and including a central hole, a detection coil electromagnetically coupled to the inductor coil, a support unit surrounding at least a portion of an outer periphery of the inductor coil, and a housing including an upper magnetic body and a lower magnetic body facing each other in a vertical direction with the inductor coil therebetween to form an inner space in which the inductor coil and the detection coil are provided, the upper magnetic body and the lower magnetic body each including a protrusion inserted into the central hole of the inductor coil.
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公开(公告)号：US20220376631A1
公开(公告)日：2022-11-24
申请号：US17747565
申请日：2022-05-18
申请人： Marco Tremblay , Sheila Tremblay
发明人： Marco Tremblay , Sheila Tremblay
摘要： There is described a power supply unit having at least one alternating current (AC) input and at least one direct current (DC) output for producing an output voltage. The power supply unit comprises at least one input transformer coupled to the at least one AC input and at least one rectification circuit defining an AC side and a DC side, and coupled to the at least one input transformer on the AC side. The at least one rectification circuit comprises a diode rectifier section on the AC side comprising at least one set of diode rectifiers, and a controlled rectifier section in series with the diode rectifier section and configured for producing a variable load voltage to modulate the output voltage between a base voltage and a maximum value of the output voltage using at least one set of three single-phase controlled rectifiers usable as one to three DC outputs to form a three-phase controlled rectifier.
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公开(公告)号：US20220376612A1
公开(公告)日：2022-11-24
申请号：US17765155
申请日：2019-11-07
发明人： Juan Luis Lopez Rodriguez , Sergio Alejandro Lopez Ramos , Santiago Sanz Ananos , Antonio Rodriguez Avila , Jose Ma. Rio Doval
摘要： There is described a snubber circuit comprising an electronic switch. The circuit includes an impedance network comprising reactive circuit elements to smooth energy transients if the electronic switch is turned off and if the switch is turned on. A resistive element dissipates energy released by at least one of the reactive circuit elements. The resistive element is of a load to be driven using the electronic switch. A power supply unit may include the described snubber circuit.
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公开(公告)号：US11509238B2
公开(公告)日：2022-11-22
申请号：US17202514
申请日：2021-03-16
发明人： Nan Luo , Qiukai Huang , Jian Deng , Zhaofeng Wang , Jialiang Zhang
摘要： A rectifier circuit applied in an AC/AC power supply, the rectifier circuit including: a filter circuit configured to receive a DC pulsating voltage, and to generate a supply voltage, where the supply voltage follows the DC pulsating voltage during a first time interval of an operation cycle; and where during a second time interval of the operation cycle, a value of the supply voltage is greater than the value of the supply voltage at an end of the first time interval, in order to reduce a size of the filter circuit.
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公开(公告)号：US11490543B2
公开(公告)日：2022-11-01
申请号：US16968242
申请日：2019-02-22
发明人： Naoto Ichihashi , Takuya Yoshinari , Yuji Kishima
摘要： A DC power supply device includes a housing including a wall portion, a first opening and a second opening, a circuit portion, a regulation wall portion, and a fan. The first and second openings are formed in the wall portion. The circuit portion includes first and second circuit elements those fixed within the housing. The regulation wall portion provide a first air passage in communication with the first opening, a second air passage in communication with the second opening, and a bent air passage allowing the first air passage and the second air passage to communicate with each other. The fan is configured to generate an air-flow flowing between the first air passage and the second air passage. The fan is positioned to face the first opening. The first circuit element is positioned in the first air passage. The second circuit element is positioned in the second air passage.
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公开(公告)号：US11490478B1
公开(公告)日：2022-11-01
申请号：US17489716
申请日：2021-09-29
发明人： Fuxing Lu , Rongtu Liu , Hao Ye
IPC分类号： H05B45/37 , H05B47/10 , H05B45/14 , H02M7/06 , H05B45/325
摘要： A high-compatibility dimmer circuit is provided, which includes an impedance inspection avoidance module, a dimming module and an alternating-current input module. The impedance inspection avoidance module is connected to a load via an output end. The dimming module is connected to the impedance inspection avoidance module and includes a control unit. The alternating-current input module is connected to the dimming module, and converts an input alternating voltage into a pulsating direct voltage so as to power the load and the dimming module. When the load is driven, the control unit starts timing and switches the impedance inspection avoidance module after a predetermined time period. In this way, the dimming module can directly power the load and perform dimming for the load according to a dimming signal.
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公开(公告)号：US11486596B2
公开(公告)日：2022-11-01
申请号：US16616676
申请日：2017-07-26
发明人： Takamasa Ohnishi
IPC分类号： F24F11/46 , F24F11/88 , H02M1/32 , H02M7/5387 , H02M1/00 , H02M1/36 , H02M3/158 , H02M7/06 , F24F1/0003
摘要： An outdoor unit includes: first, second, third, and fourth connection terminals all of which are connected to an indoor unit; a power converter; and a switch unit provided between the first connection terminal and the power converter. The indoor unit includes: a first indoor unit terminal connected to the first connection terminal; a second indoor unit terminal connected to the second connection terminal; a third indoor unit terminal connected to the third connection terminal; a fourth indoor unit terminal connected to the fourth connection terminal; and a switch provided between the first indoor unit terminal and the fourth indoor unit terminal. The switch unit includes: a first switch that is closed when receiving power supply from the second and fourth connection terminals; and a second switch connected in parallel with the first switch. AC power is applied to the first and second connection terminals. The indoor unit closes the switch upon receiving a start signal, and the outdoor unit closes the second switch after supply of AC power to the power converter starts.
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公开(公告)号：US11482957B1
公开(公告)日：2022-10-25
申请号：US17391123
申请日：2021-08-02
摘要： Systems for a cascaded multiple feedback generator controller are provided. Aspects include a direct current (DC) power supply comprising a generator and a rectifier circuit connected to a load, a first voltage sensing device coupled to a first point of regulation, a second voltage sensing device coupled to a second point of regulation, a generator controller configured to receive a first voltage signal from the first voltage sensing device, receive a second voltage signal from the second voltage sensing device, determine an adjustment for the generator, the adjustment comprising a transient performance response and a voltage droop response, wherein the transient performance response is determined based on the first voltage signal, and wherein the voltage droop response is determined based on the second voltage signal, and operate the generator based on the adjustment for the generator.
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