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公开(公告)号：US10439390B1
公开(公告)日：2019-10-08
申请号：US16103948
申请日：2018-08-15
申请人： VIA LABS, INC.
发明人： Nai-Chuan Hung , Hung-Chih Chiu
摘要： A multi-port power supply apparatus and its operation method are provided. The multi-port power supply apparatus includes a voltage source circuit, a first voltage converter, a second voltage converter and a first common control circuit. The voltage source circuit provides a source voltage. The first voltage converter converts the source voltage into a first output voltage and outputs the first output voltage to a first connecting port of the multi-port power supply apparatus. The second voltage converter converts the source voltage into a second output voltage and outputs the second output voltage to a second connecting port of the multi-port power supply apparatus. The first common control circuit adjusts the source voltage according to a first voltage demand of the first connecting port and a second voltage demand of the second connecting port. Thus, a voltage conversion efficiency of the multi-port power supply apparatus is enhanced.
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公开(公告)号：US10312821B2
公开(公告)日：2019-06-04
申请号：US15359213
申请日：2016-11-22
摘要： A rectifier cell includes a first cell branch and a second cell branch that extend in parallel between two opposite nodes receiving an a.c. signal. The first cell branch includes a first pair of transistors arranged with their current paths cascaded, with a first intermediate point in-between. The second cell branch includes a second pair of transistors arranged with their current paths cascaded, with a second intermediate point in-between. Each of the pairs of transistors includes a first transistor with a control terminal coupled to one of the two opposite nodes and a second transistor with a control terminal coupled to the other of the two opposite nodes. The bulks of the transistors receive voltages in order to vary the transistor threshold voltage by bringing the threshold voltage to a first value during forward conduction and to a second value during reverse conduction.
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3.发明授权公开(公告)号：US09819283B2
公开(公告)日：2017-11-14
申请号：US14784968
申请日：2014-04-22
CPC分类号： H02M7/04 , H02M1/12 , H02M1/4225 , H02M3/158 , Y02B70/126 , Y02P80/112
摘要： A control method and system are provided for regulating operation of power factor correction rectifiers based on the non-symmetric boost converter topology. Control of both the front-end stage is enabled taking sinusoidal current from the utility network and a downstream converter providing isolated DC output voltage. Also provided are a method and system for reducing volume of reactive components in boost-based rectifiers with power factor correction. Flux density through the inductor is reduced with a biasing inductor current having a much lower frequency than the switching frequency of the converter.
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公开(公告)号：US09742272B2
公开(公告)日：2017-08-22
申请号：US15187591
申请日：2016-06-20
发明人： Ryuji Yamada
CPC分类号： H02M3/156 , H02M7/06 , H02M7/10 , H02M2001/007 , H02M2001/0074
摘要： An AC to DC converter includes a plurality of rectifier circuits connected in series to an AC voltage source at an input side to collectively receive an output voltage of the AC voltage source; and a plurality of switching units respectively connected to the plurality of rectifier circuits, each of the switching units having a semiconductor switching device, a diode, and a capacitor, and performing ON/OFF switching of the semiconductor switching device provided therein to step up a voltage received from the corresponding rectifier circuit, each of the switching units supplying the stepped-up voltage to said capacitor through said diode so that a resulting DC across said capacitor can be provided, as a DC output voltage of the switching unit, to a respective load to be connected to terminals of said capacitor.
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5.发明授权Device for electric heating of the anodes in high-voltage mercury-arc rectifiers 失效用于高压汞电弧整流器中阳极电加热的装置
公开(公告)号：US3748530A
公开(公告)日：1973-07-24
申请号：US3748530D
申请日：1971-11-02
申请人： KULAKOV V , VAKHRAMEEV L , BERKOVSKY A , TURETSKY V
发明人： KULAKOV V , VAKHRAMEEV L , BERKOVSKY A , TURETSKY V
摘要： Device for electric heating of the anodes in high-voltage mercury-arc rectifiers, used in bridge converters of d.c. substations each bridge arm contains series-connected rectifiers, each having an anode reactor, an individual isolating auxiliarypower transformer and a built-in electric anode heater; the latter draws its power from the individual isolating transformer of an adjacent rectifier in the same phase, the cathode of which is at the same potential as the anode being heated, and said reactor has an additional isolated winding which connects said heaters to one of the wires of the individual isolating transformers while the other wire is one of the power buses.
摘要翻译： 高压汞弧整流器阳极电加热装置，用于直流电桥转换器。 变电站每个桥臂包含串联整流器，每个整流器具有阳极电抗器，单独的隔离辅助电力变压器和内置的电阳极加热器; 后者从同一相位的相邻整流器的单独隔离变压器中获得电力，其阴极处于与被加热的阳极相同的电位，并且所述反应器具有附加的隔离绕组，将所述加热器连接到 而另一根线是其中一条电力总线，则各个隔离变压器的电线。
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公开(公告)号：US3218541A
公开(公告)日：1965-11-16
申请号：US9261961
申请日：1961-03-01
IPC分类号： H02H7/127 , H02M1/04 , H02M7/15 , H03K17/723
CPC分类号： H02M7/15 , H02H7/127 , H02M1/045 , H03K17/723 , Y02B70/1483
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9.发明授权Circuit for controlling the striking phase of one or more gas-filled triodes connected to an a.c. voltage 失效用于控制连接到交流电源的一个或多个充满气体的三极管的击发相位的电路。 电压
公开(公告)号：US3082352A
公开(公告)日：1963-03-19
申请号：US8062661
申请日：1961-01-04
申请人： ELEMAG ANSTALT
发明人： RUDOLF DIENER
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公开(公告)号：US2898480A
公开(公告)日：1959-08-04
申请号：US62918856
申请日：1956-12-18
申请人： GEN ELECTRIC
发明人： LOEFFLER JOHN R
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