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公开(公告)号：US20190089237A1
公开(公告)日：2019-03-21
申请号：US16131630
申请日：2018-09-14
CPC分类号： H02M1/08 , H02M1/36 , H02M3/06 , H02M3/158 , H02M3/33523 , H02M3/33569 , H02M7/483 , H02M2001/0006 , H02M2001/007 , H02M2001/0093
摘要： The present disclosure relates to an auxiliary power supply (APS) for a gate driver in high voltage applications.
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公开(公告)号：US20180226890A1
公开(公告)日：2018-08-09
申请号：US15650355
申请日：2017-07-14
发明人： Heping Dai
CPC分类号： H02M3/1582 , G01K7/16 , H01F17/0013 , H02J3/383 , H02J7/0016 , H02J7/35 , H02M3/158 , H02M3/1584 , H02M3/33523 , H02M7/48 , H02M2001/0032 , H02M2001/0074 , H02M2001/0077 , H02M2001/0093 , H02S50/00 , Y02E10/56
摘要： The disclosure relates to technology for providing power, voltage, and/or current from a combination of DC sources. The DC sources may be photovoltaic panels. One aspect includes a stack of DC power sources (e.g., photovoltaic modules) with a DC to DC converter (e.g., power optimizer) associated with each DC power source. An output capacitor of a DC to DC converter is connected in series with its DC power source. Thus, there is a string of DC power sources and output capacitors connected in electrical series. The DC output of the system is a series connection of the DC power sources and the output capacitors. This reduces stress on the output capacitors, while allowing for efficient power generation by the DC power sources.
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公开(公告)号：US09960687B2
公开(公告)日：2018-05-01
申请号：US15174042
申请日：2016-06-06
发明人： Ahmed Elasser , Mohammed Agamy , Kum Kang Huh
CPC分类号： H02M3/33507 , H02M1/08 , H02M3/33561 , H02M3/33584 , H02M3/337 , H02M7/4807 , H02M2001/0058 , H02M2001/0093 , H02M2007/4815 , Y02B70/1441 , Y02B70/1491
摘要： According to some embodiments, an electronic drive circuit is disclosed. The electronic drive circuit includes an energy storage device and a first bridge circuit coupled to the energy storage device. The first bridge circuit includes at least one leg having two switches. The electronic drive circuit also includes a transformer. The transformer includes a first winding coupled to the first bridge circuit and a second winding coupled to the energy storage device through a center tap. The electronic drive circuit further includes a second bridge circuit coupled to the second winding of the transformer. The second bridge circuit includes a pair of switches operable to conduct in both directions and block voltage in both directions. The electronic drive circuit additionally includes a DC bus coupled to the second bridge circuit and a controller, which is configured to buck or boost a DC voltage from the energy storage device to supply to the DC bus as well as buck or boost a DC voltage from the DC bus to supply to the energy storage device.
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公开(公告)号：US20180026528A1
公开(公告)日：2018-01-25
申请号：US15546574
申请日：2015-02-27
发明人： Song Xiong , Siew Chong Tan , Shu Yuen Ron Hui
IPC分类号： H02M3/07
CPC分类号： H02M3/07 , H02M3/158 , H02M2001/007 , H02M2001/0093
摘要： A power converter comprising one or more switch blocks. Each switch block has: a plurality of switch-pairs each having two switches connected in series to each other; a plurality of primary nodes each interconnecting the switches in a respective switch-pair; and a plurality of secondary nodes, each switch-pair being connected in series to an adjacent switch-pair through a said secondary node to form a serial chain of switch-pairs, the secondary nodes including a secondary node at one end of said serial chain and a secondary node at another end of said serial chain. Each adjacent pair of said primary nodes is connectable to a flying capacitor. Each pair of said secondary nodes is connectable to one or more of the following: one or more bypass capacitors, and one or more other said switch blocks. The power converter further comprises a first terminal formed by any two of the secondary nodes in any one of the switch blocks, and a second terminal formed by any two of the secondary nodes in any one of the switch blocks.
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公开(公告)号：US20170324351A1
公开(公告)日：2017-11-09
申请号：US15587606
申请日：2017-05-05
CPC分类号： H02M7/219 , G05F1/10 , G05F1/30 , G05F1/613 , H02J50/12 , H02J50/80 , H02M7/12 , H02M7/23 , H02M7/25 , H02M2001/007 , H02M2001/0093 , H02M2007/4818 , H03F3/2176 , H04B5/0037
摘要： Methods and apparatus provide compensation for impedance changes in a network energized by an amplifier, such as a class E amplifier. In embodiments, bus voltage amplifier fundamental AC output voltage can be used to generate a feedback signal for adjusting impedance of one or more components in the network. In embodiments, the amplifier fundamental AC output voltage is determined from current to the load, wherein the load is coupled to the amplifier by an LCL impedance matching network.
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公开(公告)号：US20170324319A1
公开(公告)日：2017-11-09
申请号：US15526988
申请日：2014-11-13
发明人： Kwan Tat Mok , Siew Chong Tan , Shu Yuen Ron Hui
IPC分类号： H02M1/42 , H02M7/219 , H02J3/38 , H02M7/5387 , H02J3/18
CPC分类号： H02M1/4208 , G05F1/455 , G05F1/565 , H02J3/18 , H02J3/382 , H02M5/293 , H02M7/219 , H02M7/5387 , H02M2001/0003 , H02M2001/0093 , H02M2001/4275 , H02M2005/2932 , Y02B70/126 , Y02E40/30
摘要： A power controller for an AC power converter connected in series with a load and receiving power from or delivering power to a power source, the power controller comprising: a radial control block controlling a radial component of an electrical parameter of the AC power converter; and a chordal control block controlling a chordal component of the electrical parameter of the AC power converter. Also provided is a power system comprising one or more loads each connected in series to a power converter each controlled by a power controller as described above. There is also provided a method of controlling an AC power converter connected in series with a load and receiving power from a power source, the method comprising: controlling a radial component of an electrical parameter of the AC power converter; and controlling a chordal component of the electrical parameter of the AC power converter.
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公开(公告)号：US09699846B2
公开(公告)日：2017-07-04
申请号：US15275922
申请日：2016-09-26
CPC分类号： H05B33/0815 , H02M1/42 , H02M3/156 , H02M7/217 , H02M2001/0093 , H05B33/0818 , H05B33/0842 , Y02B70/12
摘要： A biasing and driving circuit for an electric load, having an input adapted to receive an a.c. input voltage and an output adapted to supply a d.c. output voltage, comprising: a voltage-regulator device, having a feedback input terminal configured to receive a sensing voltage that is a function of a supply current that flows through the electric load and regulating, on the basis of the sensing voltage received, the supply current; a resistive sensing element, operatively coupled to the feedback input, configured to receive the supply current and generate the sensing voltage as a function of the supply current; a resistor coupled to the feedback input; and an auxiliary biasing circuit adapted to receive the a.c. input voltage and inject through the resistor an a.c. auxiliary biasing current that varies in a way inversely proportional to the input voltage.
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公开(公告)号：US09688149B2
公开(公告)日：2017-06-27
申请号：US14000130
申请日：2012-02-20
申请人： Vit Kocur , Martin Gerhat
发明人： Vit Kocur , Martin Gerhat
CPC分类号： B60L1/00 , H02J7/345 , H02M2001/0093
摘要： A voltage stabilization apparatus (1) for a motor vehicle electrical system to stabilize at least one voltage-sensitive consumer (9) is proposed. The voltage stabilization apparatus is distinguished by a DC/DC converter circuit (3), an energy storage device (5) and a changeover switch (7), which are designed and arranged so that the energy storage device (5) is changeable by the DC/DC converter circuit (3) and the changeover switch (7) enables an electrical connection between the voltage-sensitive consumer (9) and the energy storage device (5) in such a way that the energy storage device (5) in case of need supplies a stabilization voltage (USTAB) at the consumer (9).
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公开(公告)号：US20170155276A1
公开(公告)日：2017-06-01
申请号：US15316457
申请日：2015-04-10
申请人： FDK CORPORATION
CPC分类号： H02J9/061 , H02J7/0068 , H02J7/0077 , H02J7/022 , H02M3/335 , H02M2001/0093
摘要： An uninterruptible power supply unit includes: an input/output terminal connected in parallel with a power supply line which supplies power from an external power supply to a load device; a battery unit whose rated voltage is a voltage equal to a voltage of the external power supply; a DC/DC converter for converting the voltage of the external power supply into an output voltage corresponding to a difference between the rated voltage of the battery unit and the charging voltage of the battery unit; a charging circuit for charging the battery unit with a voltage equal to the voltage of the external power supply added with the output voltage of the DC/DC converter; and a discharging circuit that discharges power to the load device from the battery unit through the input/output terminal in the event that the external power supply is interrupted.
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10.发明授权Multiport DC-DC autotransformer and methods for controlling and using the same 有权多端口DC-DC自耦变压器及其控制和使用方法公开(公告)号：US09484826B2
公开(公告)日：2016-11-01
申请号：US14710622
申请日：2015-05-13
发明人： Weixing Lin , Jinyu Wen , Shijie Cheng
CPC分类号： H02M3/33546 , H02J1/08 , H02J2001/002 , H02M3/28 , H02M7/25 , H02M7/49 , H02M2001/0077 , H02M2001/009 , H02M2001/0093
摘要： A multiport DC-DC autotransformer for interconnecting three or more DC systems. The autotransformer includes 2N−1 converters sequentially connected in series at a DC side, and connected to an AC transmission line via an AC link at an AC side, and a positive terminal of the ith converter of the 2N−1 sequentially connected converters and a negative terminal of the (2N−i)th converter are respectively connected to a positive terminal of the ith DC system and a negative terminal thereof, where N represents the number of DC systems, and i represents the serial number of converters. Also disclosed are a method for determining power rating of each converter of the multiport DC-DC autotransformer, and a method for controlling the autotransformer. Most power can be transferred between different DC systems via a direct electrical connection without DC-AC-DC conversion.
摘要翻译： 用于互连三个或更多个DC系统的多端口DC-DC自耦变压器。 自耦变压器包括在DC侧依次串联连接的2N-1个转换器，并且经由AC侧的AC链路与AC传输线连接，以及2N-1个顺序连接的转换器的第i个转换器的正极和 （2N-i）转换器的负端子分别连接到第i个直流系统的正极和其负极，其中N表示直流系统的数量，i表示转换器的序列号。 还公开了一种用于确定多端口DC-DC自耦变压器的每个转换器的额定功率的方法，以及用于控制自耦变压器的方法。 大多数功率可以通过直流电连接在不同直流系统之间传输，无需直流 - 直流 - 直流转换。
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