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公开(公告)号：US11876450B2
公开(公告)日：2024-01-16
申请号：US17186880
申请日：2021-02-26
发明人： Takeshi Ueno
摘要： According to one embodiment, an electronic circuit includes: a first circuit configured to generate a first current and output a first voltage, the first voltage being one of a voltage based on the first current and a first predetermined voltage; a second circuit configured to generate a first output current based on the first voltage; a first output terminal outputting the first output current to a first switching device; a first input terminal having a first input signal inputted, the first input signal relating to driving and non-driving of the first switching device; and a third circuit configured to generate a first control signal based on the first input signal, the first control signal switching the first voltage to the first predetermined voltage and stopping the first current.
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公开(公告)号：US10263433B2
公开(公告)日：2019-04-16
申请号：US15706957
申请日：2017-09-18
发明人： Kohei Onizuka , Takeshi Ueno
摘要： According to one embodiment, a power supply device includes a voltage conversion circuit configured to convert a voltage of power generated by a power generation element; a plurality of power storage elements connected in parallel with respective load circuits; a switch circuit configured to switch an electrical connection between the voltage conversion circuit and each of the plurality of power storage elements; and a control circuit configured to measure voltages of the plurality of power storage elements and to control the switch circuit based on the measured voltages.
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公开(公告)号：US10211730B2
公开(公告)日：2019-02-19
申请号：US15393514
申请日：2016-12-29
发明人： Yosuke Toyama , Taichi Ogawa , Takeshi Ueno , Tetsuro Itakura , Osamu Watanabe , Takayuki Miyazaki
摘要： A DC-DC converter includes an input terminal, multiple output terminals, an inductor, a first switch, a first condenser, a second switch and a switch controller. One end of the inductor is connected to the input terminal. The first switch is subjected to on-off control to change a current flowing through the inductor. The first condenser has one end connected between the inductor and a first output terminal, which is one of the multiple output terminals, and has the other end connected to a ground. The second switch is connected between the inductor and the first condenser. The switch controller controls the second switch to turn on when the first switch is turned off while a first output voltage from the first output terminal is smaller than a predetermined first threshold value.
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14.发明授权公开(公告)号：US10027378B2
公开(公告)日：2018-07-17
申请号：US15266933
申请日：2016-09-15
发明人： Toshiyuki Umeda , Hideo Kasami , Takeshi Ueno
摘要： According to one embodiment, a power reception device includes: a power receiver that wirelessly receives power from a power transmission device; a power storage that stores the power received by the power receiver; and a signal transmitter configured to transmit a detection signal, the signal transmitter being independent of a power system operating with power fed from the power storage.
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公开(公告)号：US20180054115A1
公开(公告)日：2018-02-22
申请号：US15444920
申请日：2017-02-28
发明人： Taichi OGAWA , Takeshi Ueno , Tetsuro Itakura , Osamu Watanabe , Takayuki Miyazaki , Yosuke Toyama
CPC分类号： H02M3/04 , H02M3/1563 , H03K3/037 , H03K5/159 , H03K2005/00013
摘要： An electronic circuit according to one embodiment of the present invention includes a first logic circuit, a second logic circuit, first and second capacitors, and a connection circuit. The first logic circuit has a first output terminal from which a first output signal based on a first input signal is output. The second logic circuit outputs a second output signal obtained by inversion of the first output signal is output in a steady state. The first and second capacitors each have one terminal at a first voltage. The connection circuit connects one of the first output terminal and the second output terminal to the first capacitor, and the other to the second capacitor. The connection circuit interchanges connection destinations of the first capacitor and the second capacitor in accordance with a received first connection control signal.
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公开(公告)号：US08994566B2
公开(公告)日：2015-03-31
申请号：US13765325
申请日：2013-02-12
发明人： Kei Shiraishi , Takeshi Ueno , Tetsuro Itakura
CPC分类号： H03M1/66 , H03M1/0845 , H03M1/742
摘要： There is provided A DA converter in which the N current switch cells each include: a current source having one end connected to a first power source; and first and second switch transistors differentially operating each other, each having a control terminal receiving a digital signal, the first combining node combines a current output from the first switch transistor in each current switch cell, the second combining node combines a current output from the second switch transistor in each current switch cell, the first output impedance element has ends connected to the first combining node and a second power source, the second output impedance element has ends connected to the second combining node and the second power source, the controller controls the current source in each current switch cell to reduce variation in amount of a current flowing from the first power source.
摘要翻译： 提供了A DA转换器，其中N个电流开关单元各自包括：电流源，其一端连接到第一电源; 第一和第二开关晶体管彼此差分地工作，每个具有接收数字信号的控制端，第一组合节点组合每个当前开关单元中的来自第一开关晶体管的电流输出，第二组合节点组合来自 在每个电流开关单元中的第二开关晶体管，第一输出阻抗元件具有连接到第一组合节点和第二电源的端部，第二输出阻抗元件具有连接到第二组合节点和第二电源的端部，控制器控制 每个电流开关单元中的电流源，以减少从第一电源流出的电流量的变化。
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公开(公告)号：US20140241021A1
公开(公告)日：2014-08-28
申请号：US14170040
申请日：2014-01-31
发明人： Takeshi Ueno , Tetsuro Itakura , Ikuya Aoyama
IPC分类号： H02M7/537
CPC分类号： H02M1/126 , H02M7/53803 , H02M7/53873 , Y02B70/1441
摘要： An inverter control circuit has a quantizer configured to generate a switching signal which changes over switches of a main circuit converting a DC voltage into an AC voltage, and a filter circuit configured to generate a signal having specific transfer characteristic by using a signal correlated with an output voltage of an LC filter which smooths the AC voltage and an instruction signal corresponding to a target value of an output voltage of the main circuit, wherein the quantizer generates the switching signal by quantizing an output signal of the filter circuit.
摘要翻译： 逆变器控制电路具有量化器，其被配置为产生将DC电压转换为AC电压的主电路的开关切换的开关信号，以及滤波器电路，被配置为通过使用与相关信号相关联的信号来生成具有特定传输特性的信号 使AC电压平滑的LC滤波器的输出电压和对应于主电路的输出电压的目标值的指令信号，其中量化器通过量化滤波器电路的输出信号来产生开关信号。
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公开(公告)号：US10158240B2
公开(公告)日：2018-12-18
申请号：US15212481
申请日：2016-07-18
发明人： Takeshi Ueno , Toshiyuki Umeda
摘要： An electrical storage device according to an embodiment includes a power generator; a first-type capacitor that stores the electrical power generated by the power generator; second-type capacitors that are connected to the first-type capacitor in parallel; switches each of which is connected to one of the second-type capacitors; and a control circuit that controls the switches. Every time either a charging voltage or an observation voltage proportional to the charging voltage exceeds a first threshold value, the control circuit controls the switches in such a way that the i+1-th second-type capacitor (where i is an integer equal to or greater than zero) is additionally connected to the first-type capacitor in parallel.
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公开(公告)号：US10056837B2
公开(公告)日：2018-08-21
申请号：US15447589
申请日：2017-03-02
发明人： Yosuke Toyama , Taichi Ogawa , Takeshi Ueno , Tetsuro Itakura , Osamu Watanabe , Takayuki Miyazaki
CPC分类号： H02M3/158 , H02M1/08 , H02M2001/009
摘要： According to one embodiment, a DC-DC converter, includes: an inductor configured to be supplied with an input voltage; a plurality of rectifiers connected in parallel to the inductor; a plurality of p-MOS transistors connected in series to the respective rectifiers; a switch configured to connect an output side of the inductor to a reference potential; and a control circuit configured to control the p-MOS transistors and the switch. The control circuit performs control to supply a voltage to turn on a first p-MOS transistor selected from among the p-MOS transistors to a gate terminal of the first p-MOS transistor, and to supply a voltage depending on an output voltage of the first p-MOS transistor to a gate terminal of a second p-MOS transistor other than the first p-MOS transistor among the p-MOS transistors.
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公开(公告)号：US20180006561A1
公开(公告)日：2018-01-04
申请号：US15447589
申请日：2017-03-02
发明人： Yosuke TOYAMA , Taichi Ogawa , Takeshi Ueno , Tetsuro Itakura , Osamu Watanabe , Takayuki Miyazaki
IPC分类号： H02M3/158
CPC分类号： H02M3/158 , H02M1/08 , H02M2001/009
摘要： According to one embodiment, a DC-DC converter, includes: an inductor configured to be supplied with an input voltage; a plurality of rectifiers connected in parallel to the inductor; a plurality of p-MOS transistors connected in series to the respective rectifiers; a switch configured to connect an output side of the inductor to a reference potential; and a control circuit configured to control the p-MOS transistors and the switch. The control circuit performs control to supply a voltage to turn on a first p-MOS transistor selected from among the p-MOS transistors to a gate terminal of the first p-MOS transistor, and to supply a voltage depending on an output voltage of the first p-MOS transistor to a gate terminal of a second p-MOS transistor other than the first p-MOS transistor among the p-MOS transistors.
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