Patents by Inventor Throngnumchai Kraisorn
Throngnumchai Kraisorn has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10312897Abstract: A switching device according to the present invention comprises: a main circuit including a switching element; a control circuit which generates a control signal for switching the switching element between an on state and an off state; and a first signal line and a second signal line which transfer the control signal outputted from the control circuit, to the main circuit. The value of the characteristic impedance (Zcd) of the first and second signal lines is set between the value of the output impedance (Zab) of the control circuit and the value of the input impedance (Zef) of the main circuit.Type: GrantFiled: November 6, 2014Date of Patent: June 4, 2019Assignee: NISSAN MOTOR CO., LTD.Inventors: Akinori Okubo, Throngnumchai Kraisorn, Kentaro Shin
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Patent number: 9806534Abstract: A non-contact power feeding apparatus transmits, by at least magnetic coupling, an electric power in a non-contact manner to a power reception coil from a power transmission coil. The transmission coil is electrically connected to an alternating-current power source. The non-contact power feeding apparatus outputs an electric power to a load electrically connected to the power reception coil. The non-contact power feeding apparatus includes a coupling state estimator configured to estimate a coupling state between the power transmission coil and the power reception coil. The non-contact power feeding apparatus also includes an available output power calculator configured to calculate an available output power that can be output to the load, based on a limit value of a circuit element of a power feeding circuit including the power transmission coil and the power reception coil and on the coupling state.Type: GrantFiled: March 5, 2013Date of Patent: October 31, 2017Assignee: NISSAN MOTOR CO., LTD.Inventors: Yuuya Yamauchi, Yuusuke Minagawa, Throngnumchai Kraisorn, Toshihiro Kai
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Publication number: 20170264279Abstract: A switching device according to the present invention comprises: a main circuit including a switching element; a control circuit which generates a control signal for switching the switching element between an on state and an off state; and a first signal line and a second signal line which transfer the control signal outputted from the control circuit, to the main circuit. The value of the characteristic impedance (Zcd) of the first and second signal lines is set between the value of the output impedance (Zab) of the control circuit and the value of the input impedance (Zef) of the main circuit.Type: ApplicationFiled: November 6, 2014Publication date: September 14, 2017Applicant: NISSAN MOTOR CO., LTD.Inventors: Akinori OKUBO, Throngnumchai KRAISORN, Kentaro SHIN
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Patent number: 9755461Abstract: There are provided with: a secondary winding 20 to which an electric power is supplied in a non-contact manner from a primary winding 10 by an alternating-current power source; a first circuit section 21 connected in parallel to the secondary winding 20; and a second circuit section 22 connected in series to a parallel circuit of the secondary winding 20 and the first circuit section 21. An impedance of the first circuit section 21 is larger than an impedance of the second circuit section.Type: GrantFiled: July 12, 2013Date of Patent: September 5, 2017Assignee: NISSAN MOTOR CO., LTD.Inventors: Toshihiro Kai, Throngnumchai Kraisorn, Yuuya Yamauchi, Yuusuke Minagawa
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Patent number: 9705565Abstract: A non-contact power supply device comprises: a primary winding (101); and a secondary winding (201) to which an electric power is supplied from an alternating current power supply via the primary winding, wherein an impedance characteristic of Z1 with respect to a frequency is such that a minimal value is provided in the proximity of a frequency of a fundamental wave component of the alternating current power supply and another impedance characteristic of Z2 with respect to the frequency is such that the frequency of the fundamental wave component is provided between the frequency which is nearest to the frequency of the fundamental wave component and at which a maximal value is provided and the frequency which is nearest to the frequency of the fundamental wave component and at which the minimal value is provided.Type: GrantFiled: September 28, 2012Date of Patent: July 11, 2017Assignee: NISSAN MOTOR CO., LTD.Inventors: Toshihiro Kai, Yuya Yamauchi, Throngnumchai Kraisorn, Yuusuke Minagawa
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Patent number: 9369181Abstract: A contactless power feeding apparatus includes a secondary winding to which power is supplied from a primary winding by an AC power supply. An impedance absolute-value characteristic of Z1 has a frequency of a fundamental wave component to be between a frequency where a local maximum exists and that is nearest to the frequency of the fundamental wave component, and a frequency where a local minimum exists and that is nearest to the frequency of the fundamental wave component. An impedance absolute-value characteristic of Z2 has the frequency of the fundamental wave component to be between a frequency where the local maximum exists and that is nearest to the frequency of the fundamental wave component, and a frequency where the local minimum exists and that is nearest to the frequency of the fundamental wave component.Type: GrantFiled: September 29, 2011Date of Patent: June 14, 2016Assignee: NISSAN MOTOR CO., LTD.Inventors: Toshihiro Kai, Throngnumchai Kraisorn, Yusuke Minagawa
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Patent number: 9199547Abstract: A non-contact charging device is provided with: a power receiving device which has at least a power receiving coil which receives electrical power, in a non-contact manner, from a power transmitting coil by means of a magnetic connection; a battery which is charged by the electrical power; a charge-state detection means, which detects the charge-state of the battery; a position detection means which detects the position of the power transmitting coil; and a charge time calculation means, which calculates a first charge time for the battery according to the charge-state as detected by the charge-state detection means and a first position of the power transmitting coil as detected by the position detection means.Type: GrantFiled: November 16, 2011Date of Patent: December 1, 2015Assignee: NISSAN MOTOR CO., LTD.Inventors: Toshihiro Kai, Throngnumchai Kraisorn
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Publication number: 20150171667Abstract: There are provided with: a secondary winding 20 to which an electric power is supplied in a non-contact manner from a primary winding 10 by an alternating-current power source; a first circuit section 21 connected in parallel to the secondary winding 20; and a second circuit section 22 connected in series to a parallel circuit of the secondary winding 20 and the first circuit section 21. An impedance of the first circuit section 21 is larger than an impedance of the second circuit section.Type: ApplicationFiled: July 12, 2013Publication date: June 18, 2015Applicant: NISSAN MOTOR CO., LTD.Inventors: Toshihiro Kai, Throngnumchai Kraisorn, Yuuya YAMAUCHI, Yuusuki Minagawa
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Publication number: 20150028691Abstract: A non-contact power feeding apparatus transmits, by at least magnetic coupling, an electric power in a non-contact manner to a power reception coil from a power transmission coil. The transmission coil is electrically connected to an alternating-current power source. The non-contact power feeding apparatus outputs an electric power to a load electrically connected to the power reception coil. The non-contact power feeding apparatus includes a coupling state estimator configured to estimate a coupling state between the power transmission coil and the power reception coil. The non-contact power feeding apparatus also includes an available output power calculator configured to calculate an available output power that can be output to the load, based on a limit value of a circuit element of a power feeding circuit including the power transmission coil and the power reception coil and on the coupling state.Type: ApplicationFiled: March 5, 2013Publication date: January 29, 2015Inventors: Yuuya Yamauchi, Yuusuke Minagawa, Throngnumchai Kraisorn, Toshihiro Kai
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Publication number: 20140239736Abstract: A non-contact power supply device comprises: a primary winding (101); and a secondary winding (201) to which an electric power is supplied from an alternating current power supply via the primary winding, wherein an impedance characteristic of Z1 with respect to a frequency is such that a minimal value is provided in the proximity of a frequency of a fundamental wave component of the alternating current power supply and another impedance characteristic of Z2 with respect to the frequency is such that the frequency of the fundamental wave component is provided between the frequency which is nearest to the frequency of the fundamental wave component and at which a maximal value is provided and the frequency which is nearest to the frequency of the fundamental wave component and at which the minimal value is provided.Type: ApplicationFiled: September 28, 2012Publication date: August 28, 2014Inventors: Toshihiro Kai, Yuya Yamauchi, Throngnumchai Kraisorn, Yuusuke Minagawa
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Publication number: 20140111152Abstract: A non-contact charging device is provided with: a power receiving device which has at least a power receiving coil which receives electrical power, in a non-contact manner, from a power transmitting coil by means of a magnetic connection; a battery which is charged by the electrical power; a charge-state detection means, which detects the charge-state of the battery; a position detection means which detects the position of the power transmitting coil; and a charge time calculation means, which calculates a first charge time for the battery according to the charge-state as detected by the charge-state detection means and a first position of the power transmitting coil as detected by the position detection means.Type: ApplicationFiled: November 16, 2011Publication date: April 24, 2014Applicant: Nissan Motor Co., Ltd.Inventors: Toshihiro Kai, Throngnumchai Kraisorn
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Publication number: 20130221758Abstract: A contactless power feeding apparatus includes a secondary winding to which power is supplied from a primary winding by an AC power supply. An impedance absolute-value characteristic of Z1 has a frequency of a fundamental wave component to be between a frequency where a local maximum exists and that is nearest to the frequency of the fundamental wave component, and a frequency where a local minimum exists and that is nearest to the frequency of the fundamental wave component. An impedance absolute-value characteristic of Z2 has the frequency of the fundamental wave component to be between a frequency where the local maximum exists and that is nearest to the frequency of the fundamental wave component, and a frequency where the local minimum exists and that is nearest to the frequency of the fundamental wave component.Type: ApplicationFiled: September 29, 2011Publication date: August 29, 2013Inventors: Toshihiro Kai, Throngnumchai Kraisorn, Yusuke Minagawa
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Publication number: 20110316348Abstract: A non-contact power supplying device includes a power-receiving resonating means set to have a predetermined resonant frequency; a power-feeding resonating means set to have a resonance frequency equal to the predetermined resonant frequency; an oscillating means configured to input an alternating-current power into the power-feeding resonating means; an impedance detecting means configured to detect impedance within a predetermined frequency range as viewed from a power-feeding side; and a frequency-variable means configured to set a frequency of the alternating-current power. The oscillating means is configured to supply electric power to the power-receiving resonating means by producing a resonance between the power-receiving resonating means and the power-feeding resonating means. The frequency-variable means is configured to set the frequency of the alternating-current power in accordance with a value of the impedance detected by the impedance detecting means within the predetermined frequency range.Type: ApplicationFiled: February 26, 2010Publication date: December 29, 2011Applicant: NISSAN MOTOR CO., LTD.Inventors: Toshihiro Kai, Throngnumchai Kraisorn, Yasuaki Hayami