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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
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Yosuke Toyama , Taichi Ogawa , Takeshi Ueno , Tetsuro Itakura , Osamu Watanabe , Takayuki Miyazaki
Abstract: 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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公开(公告)号：US20180054115A1
公开(公告)日：2018-02-22
申请号：US15444920
申请日：2017-02-28
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Taichi OGAWA , Takeshi Ueno , Tetsuro Itakura , Osamu Watanabe , Takayuki Miyazaki , Yosuke Toyama
CPC classification number: H02M3/04 , H02M3/1563 , H03K3/037 , H03K5/159 , H03K2005/00013
Abstract: 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：US09917516B2
公开(公告)日：2018-03-13
申请号：US15252838
申请日：2016-08-31
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Taichi Ogawa , Takeshi Ueno , Tetsuro Itakura , Osamu Watanabe , Takayuki Miyazaki
CPC classification number: H02M3/158 , H02M2001/0022 , H02M2001/0054 , Y02B70/1491
Abstract: A DC-DC converter including an input, an output, a conversion circuit, and a switch control circuit. The input inputs input voltage. The output outputs output voltage. The conversion circuit a plurality of semiconductor switches, and converts the input voltage to the output voltage by switching operation of one or more semiconductor switches of the plurality of semiconductor switches. The switch control circuit selects one or more semiconductor switches performing the switching operation from the plurality of semiconductor switches based on the input voltage and a predetermined lookup table, and controls the switching operation of the one or more semiconductor switches.
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Patent Agency Ranking
公开(公告)号：US09912235B2
公开(公告)日：2018-03-06
申请号：US15257312
申请日：2016-09-06
Applicant: Kabushiki Kaisha Toshiba
Inventor： Taichi Ogawa , Takeshi Ueno , Tetsuro Itakura , Osamu Watanabe , Takayuki Miyazaki
CPC classification number: H02M3/156 , H02M1/36 , H02M3/07 , H02M2001/0006 , H02M2001/0025 , H03K3/02337 , H03K5/2481
Abstract: A boost converter includes an input, an output, a startup circuit, a first switch, a comparator circuit, a switching circuit, a control circuit, a converter circuit, and a switch control circuit. The startup circuit boosts an input voltage up to a first output voltage. The comparator circuit outputs a first signal corresponding to the difference between the output voltage and a first reference voltage. The switching circuit outputs a second voltage based on the first signal. The control circuit outputs a second signal corresponding to the difference between the output voltage and a second reference voltage. The converter circuit boosts the input voltage based on the second signal, and outputs the output voltage. The switch control circuit generates a third signal based on the second signal, and outputs the third signal to the first switch.
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公开(公告)号：US09997998B2
公开(公告)日：2018-06-12
申请号：US15444920
申请日：2017-02-28
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Taichi Ogawa , Takeshi Ueno , Tetsuro Itakura , Osamu Watanabe , Takayuki Miyazaki , Yosuke Toyama
CPC classification number: H02M3/04 , H02M3/1563 , H03K3/037 , H03K5/159 , H03K2005/00013
Abstract: 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：US10056837B2
公开(公告)日：2018-08-21
申请号：US15447589
申请日：2017-03-02
Applicant: Kabushiki Kaisha Toshiba
Inventor： Yosuke Toyama , Taichi Ogawa , Takeshi Ueno , Tetsuro Itakura , Osamu Watanabe , Takayuki Miyazaki
CPC classification number: H02M3/158 , H02M1/08 , H02M2001/009
Abstract: 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
Applicant: Kabushiki Kaisha Toshiba
Inventor： Yosuke TOYAMA , Taichi Ogawa , Takeshi Ueno , Tetsuro Itakura , Osamu Watanabe , Takayuki Miyazaki
IPC: H02M3/158
CPC classification number: H02M3/158 , H02M1/08 , H02M2001/009
Abstract: 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：US20170070138A1
公开(公告)日：2017-03-09
申请号：US15257312
申请日：2016-09-06
Applicant: Kabushiki Kaisha Toshiba
Inventor： Taichi OGAWA , Takeshi Ueno , Tetsuro Itakura , Osamu Watanabe , Takayuki Miyazaki
CPC classification number: H02M3/156 , H02M1/36 , H02M3/07 , H02M2001/0006 , H02M2001/0025 , H03K3/02337 , H03K5/2481
Abstract: A boost converter includes an input, an output, a startup circuit, a first switch, a comparator circuit, a switching circuit, a control circuit, a converter circuit, and a switch control circuit. The startup circuit boosts an input voltage up to a first output voltage. The comparator circuit outputs a first signal corresponding to the difference between the output voltage and a first reference voltage. The switching circuit outputs a second voltage based on the first signal. The control circuit outputs a second signal corresponding to the difference between the output voltage and a second reference voltage. The converter circuit boosts the input voltage based on the second signal, and outputs the output voltage. The switch control circuit generates a third signal based on the second signal, and outputs the third signal to the first switch.
Abstract translation: 升压转换器包括输入，输出，启动电路，第一开关，比较器电路，开关电路，控制电路，转换器电路和开关控制电路。 启动电路将输入电压提升到第一个输出电压。 比较器电路输出对应于输出电压和第一参考电压之间的差的第一信号。 开关电路基于第一信号输出第二电压。 控制电路输出对应于输出电压和第二参考电压之间的差的第二信号。 转换器电路基于第二信号提高输入电压，并输出输出电压。 开关控制电路基于第二信号产生第三信号，并将第三信号输出到第一开关。
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