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公开(公告)号：US20230198398A1
公开(公告)日：2023-06-22
申请号：US17926674
申请日：2021-05-26
Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
Inventor： Takeaki Yajima
CPC classification number: H02M3/158 , H02M1/08 , H02M1/0009
Abstract: A power conversion circuit includes a first capacitor coupled between an input terminal and a reference potential, a second capacitor coupled between an output terminal and a reference potential, an inductor coupled between the input terminal and the output terminal, storing magnetic field energy when at least part of an input current and a current output from the first capacitor flows through the inductor as a first current, and inducing a second current for charging the second capacitor by the magnetic field energy, and a switching element that is turned on and off at a substantially constant cycle, has a substantially constant period during which the switching element is ON in one cycle, is turned on to cause the first current to flow through the inductor, and is OFF when the second current flows through the inductor.
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公开(公告)号：US20230387891A1
公开(公告)日：2023-11-30
申请号：US18227473
申请日：2023-07-28
Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
Inventor： Takeaki Yajima
CPC classification number: H03K3/02 , H03K5/01 , H03K19/20 , H03K2005/00013
Abstract: A spike generation circuit includes a first CMOS inverter connected between a first power supply and a second power supply, an output node of the first CMOS inverter being coupled to a first node that is an intermediate node coupled to an input terminal to which an input signal is input, a switch connected in series with the first CMOS inverter, between the first power supply and the second power supply, a first inverting circuit that outputs an inversion signal of a signal of the first node to a control terminal of the switch, and a delay circuit that delays the signal of the first node, outputs a delayed signal to an input node of the first CMOS inverter, and outputs an isolated output spike signal to an output terminal.
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公开(公告)号：US20220014179A1
公开(公告)日：2022-01-13
申请号：US17408599
申请日：2021-08-23
Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
Inventor： Takeaki Yajima
Abstract: A spike generation circuit includes a first CMOS inverter connected between a first power supply and a second power supply, an output node of the first CMOS inverter being coupled to a first node that is an intermediate node coupled to an input terminal to which an input signal is input, a switch connected in series with the first CMOS inverter, between the first power supply and the second power supply, a first inverting circuit that outputs an inversion signal of a signal of the first node to a control terminal of the switch, and a delay circuit that delays the signal of the first node, outputs a delayed signal to an input node of the first CMOS inverter, and outputs an isolated output spike signal to an output terminal.
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公开(公告)号：US20220376682A1
公开(公告)日：2022-11-24
申请号：US17881034
申请日：2022-08-04
Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
Inventor： Takeaki Yajima
Abstract: A spike generation circuit includes a first CMOS inverter connected between a first power supply and a second power supply, an output node of the first CMOS inverter being coupled to a first node that is an intermediate node coupled to an input terminal to which an input signal is input, a switch connected in series with the first CMOS inverter, between the first power supply and the second power supply, a first inverting circuit that outputs an inversion signal of a signal of the first node to a control terminal of the switch, and a delay circuit that delays the signal of the first node, outputs a delayed signal to an input node of the first CMOS inverter, and outputs an isolated output spike signal to an output terminal.
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公开(公告)号：US20240007102A1
公开(公告)日：2024-01-04
申请号：US18369461
申请日：2023-09-18
Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
Inventor： Takeaki Yajima
Abstract: A switching circuit includes a switching element of a field-effect type, the switching element being configured to switch between an ON state and an OFF state in accordance with a potential of a control terminal, and a control circuit configured to supply a potential of a first level to the control terminal when maintaining one state of the ON state and the OFF state of the switching element, and make the control terminal floating after charging or discharging the control terminal via a resistor and supply a potential of a second level to the control terminal when switching the switching element from the one state to another state of the ON state and the OFF state, the first level bringing the switching element into the one state, the second level bringing the switching element into said another state.
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Patent Agency Ranking
公开(公告)号：US11757433B2
公开(公告)日：2023-09-12
申请号：US17881034
申请日：2022-08-04
Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
Inventor： Takeaki Yajima
CPC classification number: H03K3/02 , H03K5/01 , H03K19/20 , H03K2005/00013
Abstract: A spike generation circuit includes a first CMOS inverter connected between a first power supply and a second power supply, an output node of the first CMOS inverter being coupled to a first node that is an intermediate node coupled to an input terminal to which an input signal is input, a switch connected in series with the first CMOS inverter, between the first power supply and the second power supply, a first inverting circuit that outputs an inversion signal of a signal of the first node to a control terminal of the switch, and a delay circuit that delays the signal of the first node, outputs a delayed signal to an input node of the first CMOS inverter, and outputs an isolated output spike signal to an output terminal.
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公开(公告)号：US20220393563A1
公开(公告)日：2022-12-08
申请号：US17769919
申请日：2020-10-28
Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
Inventor： Takeaki Yajima , Akira Toriumi
Abstract: A current sensor includes an element that is in a high-resistance state when an absolute value of a current flowing between a first terminal and a second terminal is within a first range, and changes to a low-resistance state in which a resistance value is lower than that in the high-resistance state when the absolute value of the current exceeds the first range, and a circuit that supplies a current to be measured to the element, and senses a value of the current to be measured based on at least one of voltages of the first terminal and the second terminal.
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公开(公告)号：US20220376681A1
公开(公告)日：2022-11-24
申请号：US17880821
申请日：2022-08-04
Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
Inventor： Takeaki Yajima
Abstract: A spike generation circuit includes a first CMOS inverter connected between a first power supply and a second power supply, an output node of the first CMOS inverter being coupled to a first node that is an intermediate node coupled to an input terminal to which an input signal is input, a switch connected in series with the first CMOS inverter, between the first power supply and the second power supply, a first inverting circuit that outputs an inversion signal of a signal of the first node to a control terminal of the switch, and a delay circuit that delays the signal of the first node, outputs a delayed signal to an input node of the first CMOS inverter, and outputs an isolated output spike signal to an output terminal.
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公开(公告)号：US11444605B2
公开(公告)日：2022-09-13
申请号：US17408599
申请日：2021-08-23
Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
Inventor： Takeaki Yajima
Abstract: A spike generation circuit includes a first CMOS inverter connected between a first power supply and a second power supply, an output node of the first CMOS inverter being coupled to a first node that is an intermediate node coupled to an input terminal to which an input signal is input, a switch connected in series with the first CMOS inverter, between the first power supply and the second power supply, a first inverting circuit that outputs an inversion signal of a signal of the first node to a control terminal of the switch, and a delay circuit that delays the signal of the first node, outputs a delayed signal to an input node of the first CMOS inverter, and outputs an isolated output spike signal to an output terminal.
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公开(公告)号：US12237769B2
公开(公告)日：2025-02-25
申请号：US17926674
申请日：2021-05-26
Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
Inventor： Takeaki Yajima
Abstract: A power conversion circuit includes a first capacitor coupled between an input terminal and a reference potential, a second capacitor coupled between an output terminal and a reference potential, an inductor coupled between the input terminal and the output terminal, storing magnetic field energy when at least part of an input current and a current output from the first capacitor flows through the inductor as a first current, and inducing a second current for charging the second capacitor by the magnetic field energy, and a switching element that is turned on and off at a substantially constant cycle, has a substantially constant period during which the switching element is ON in one cycle, is turned on to cause the first current to flow through the inductor, and is OFF when the second current flows through the inductor.
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