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公开(公告)号：US10263429B2
公开(公告)日：2019-04-16
申请号：US15537845
申请日：2016-01-25
申请人： OMRON Corporation
发明人： Makoto Ohashi , Takeo Nishikawa , Takashi Hyodo , Isao Fujihata , Masayuki Suetomi , Masaaki Shimizu
摘要： A low-voltage circuit in a bidirectional DC-DC converter converts output AC power from a high-voltage circuit to DC power to charge a smoothing reactor and discharge the smoothing reactor, and includes an active snubber circuit including switching elements and each having a backward diode and a snubber capacitor. The snubber capacitor of the active snubber circuit has its one end connected to a drain end of the switching elements, and has its other end connected to a node between a center tap of a high-frequency transformer and a smoothing reactor.
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公开(公告)号：US10230306B2
公开(公告)日：2019-03-12
申请号：US15584044
申请日：2017-05-02
申请人： OMRON Corporation
发明人： Masayuki Suetomi , Katsuji Mitsui , Isao Fujihata , Kesanobu Kuwabara , Yoshihiko Yamaguchi , Makoto Ohashi
摘要： A power conversion device, which includes an insulation type full bridge converter and can switch a power transmission direction at a high speed, is provided. A DC/DC converter (10) constitutes a power conversion device, which operates as a first type converter that converts a voltage within a first range applied to a first input/output terminal pair into a voltage within a second range and outputs the voltage from a second input/output terminal pair or a second type converter that converts a voltage within the second range applied to the second input/output terminal pair into a voltage within the first range and outputs the voltage from the first input/output terminal pair, as a device that performs a specific state transition of the DC/DC converter (10) after a change rate of a magnitude of a current flowing through a winding of a primary or secondary side of a transformer (TR) with respect to time reaches a value within a predetermined change rate range.
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公开(公告)号：US09837908B2
公开(公告)日：2017-12-05
申请号：US15584043
申请日：2017-05-02
申请人： OMRON Corporation
发明人： Masayuki Suetomi , Katsuji Mitsui , Isao Fujihata , Kesanobu Kuwabara , Yoshihiko Yamaguchi , Makoto Ohashi
CPC分类号： H02M3/26 , H02M1/08 , H02M3/33584 , H02M2001/0009
摘要： A power conversion device, which includes an insulation type full bridge converter and can switch a power transmission direction at a high speed, is provided. A DC/DC converter (10) constitutes a power conversion device, which operates as a first type converter that converts a voltage within a first range applied to a first input/output terminal pair into a voltage within a second range and outputs the voltage from a second input/output terminal pair or a second type converter that converts a voltage within the second range applied to the second input/output terminal pair into a voltage within the first range and outputs the voltage from the first input/output terminal pair, as a device that performs predetermined state transition of the DC/DC converter (10) after waiting for a load current value of a secondary side of a transformer (TR) to be a value within a predetermined current value range.
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公开(公告)号：US10008938B2
公开(公告)日：2018-06-26
申请号：US15584039
申请日：2017-05-02
申请人： OMRON Corporation
CPC分类号： H02M3/24 , H02M1/08 , H02M3/33584 , H02M2001/0009 , H02M2001/0058 , Y02B70/1491
摘要： A power conversion device, which includes an insulation type full bridge converter and can switch a power transmission direction at a high speed, is provided. A DC/DC converter (10) constitutes a power conversion device, which operates as a first type converter that converts a voltage within a first range applied to a first input/output terminal pair into a voltage within a second range and outputs the voltage from a second input/output terminal pair or a second type converter that converts a voltage within the second range applied to the second input/output terminal pair into a voltage within the first range and outputs the voltage from the first input/output terminal pair, as a device in which a direction of a current flowing through a winding of a transformer (TR) is switched after a magnitude of the current flowing through the winding of the transformer (TR) reaches “0.”
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公开(公告)号：US09847723B2
公开(公告)日：2017-12-19
申请号：US15584041
申请日：2017-05-02
申请人： OMRON Corporation
发明人： Masayuki Suetomi , Katsuji Mitsui , Isao Fujihata , Kesanobu Kuwabara , Yoshihiko Yamaguchi , Makoto Ohashi
CPC分类号： H02M3/24 , H02M1/00 , H02M3/33584 , H02M2001/0009 , H02M2001/0025 , H02M2001/0041
摘要： A power conversion device, which includes an insulation type full bridge converter and can switch a power transmission direction at a high speed, is provided. A DC/DC converter (10) constitutes a power conversion device, which operates as a first type converter that converts a voltage within a first range applied to a first input/output terminal pair into a voltage within a second range and outputs the voltage from a second input/output terminal pair or a second type converter that converts a voltage within the second range applied to the second input/output terminal pair into a voltage within the first range and outputs the voltage from the first input/output terminal pair, as a device that performs a predetermined state transition of the DC/DC converter (10) after waiting for a load current value of a primary or secondary side of a transformer (TR) becomes a value within a predetermined current value range.
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