公开(公告)号：US20190190402A1

公开(公告)日：2019-06-20

申请号：US16181341

申请日：2018-11-06

申请人： OMRON Corporation

发明人： Yuhki KAMATANI ,  Takeo NISHIKAWA ,  Hironori NAKADA

IPC分类号： H02M7/5387 ,  H02M1/08

CPC分类号： H02M7/53871 ,  H02J3/383 ,  H02M1/08 ,  H02M7/48 ,  H02M2001/0009

摘要： A power converter is provided with an inverter unit for converting DC power from a DC power supply into AC power, and a control unit that generates a control signal for controlling the inverter unit. The control unit includes an impedance estimation unit that injects a disturbance signal into a load and derives an estimated value of an impedance of the load based on a voltage signal from the load into which the disturbance signal is injected, the impedance compensator unit whose control parameters are set based on the estimated value of the impedance, and that corrects an output current signal in accordance with the control parameters, a command value unit that outputs a command value indicating a control target value, and a control compensator unit that generates a control signal, based on the command value from the command value unit and the current signal from the impedance compensator unit.

公开(公告)号：US20180041138A1

公开(公告)日：2018-02-08

申请号：US15786788

申请日：2017-10-18

申请人： OMRON Corporation

发明人： Takeo NISHIKAWA ,  Wataru OKADA ,  Takayoshi TAWARAGI ,  Satoshi IWAI

IPC分类号： H02M7/5387 ,  H02M7/797 ,  H02J3/38

CPC分类号： H02M7/5387 ,  H02H7/122 ,  H02J3/383 ,  H02M1/34 ,  H02M7/48 ,  H02M7/797 ,  H02M2001/0051 ,  H02M2001/123

摘要： An inverter circuit provided in a power conversion device includes a full-bridge inverter, and a short circuit part. The short circuit part includes switching elements and clamp elements connected to the switching elements. The clamp elements suppress application of an excessive voltage such as a surge voltage to the switching elements.

公开(公告)号：US20150288189A1

公开(公告)日：2015-10-08

申请号：US14742778

申请日：2015-06-18

申请人： OMRON Corporation

发明人： Takuya NAKAI ,  Takeo NISHIKAWA ,  Makoto OHASHI ,  Junichiro YAMADA ,  Wataru OKADA

IPC分类号： H02J3/38 ,  H02J3/32 ,  H02J7/35

CPC分类号： H02J3/383 ,  H02J3/32 ,  H02J7/34 ,  H02J7/35 ,  Y02E10/563 ,  Y02E10/566 ,  Y02E70/30 ,  Y10T307/367

摘要： A power control apparatus includes: a direct current bus serving as a path for supplying direct current power; a first conversion apparatus that applies DC/DC conversion to direct current power from a power generator for generating power using natural energy, and outputs the resultant direct current power to the direct current bus; a second conversion apparatus that applies DC/DC conversion to the direct current power and charges a power storage unit with the resultant direct current power, and also applies DC/DC conversion to direct current power from the power storage unit and discharges the resultant direct current power to the direct current bus; a third conversion apparatus that applies DC/AC conversion to the direct current power from the direct current bus and supplies alternating current power to a power system and an alternating current load; and a controller that controls driving of the first to third conversion apparatuses.

摘要翻译： 电力控制装置包括：作为用于提供直流电力的路径的直流母线; 将来自发电机的直流电力进行直流/直流转换的自然能量发生电力的第一变换装置，并将合成的直流电力输出到直流总线; 对直流电力进行DC / DC转换并对所得到的直流电力进行蓄电单元充电的第二转换装置，并且对来自蓄电部的直流电力进行DC / DC转换，并对所得的直流电进行放电 直流母线电源; 第三转换装置，对来自直流总线的直流电力进行DC / AC转换，并将电力供给到电力系统和交流负载; 以及控制器，其控制第一至第三转换装置的驱动。

公开(公告)号：US20210273553A1

公开(公告)日：2021-09-02

申请号：US17259521

申请日：2019-03-11

申请人： OMRON Corporation

发明人： Noriyuki NOSAKA ,  Takeo NISHIKAWA ,  Wataru OKADA ,  Satoshi IWAI ,  Takanori ISHII ,  Gun ETO

IPC分类号： H02M1/14 ,  H02M3/335 ,  H02M1/12

摘要： A power converter apparatus is provided to include a switching circuit, and a filter circuit. The switching circuit generates an AC voltage by switching a DC voltage at a predetermined switching frequency, and the filter circuit converts the AC voltage from the switching circuit into the DC voltage by low-pass filtering the AC voltage. The filter circuit includes first and second bypass capacitors, and an inductor. The first bypass capacitor bypasses noise of a first frequency component of the AC voltage from the switching circuit, and the second bypass capacitor bypasses noise of a second frequency component of the AC voltage from the switching circuit, which is lower than the first frequency component. The inductor is inserted between the first and second bypass capacitors, and the inductance thereof is set so that a resonance frequency of the filter circuit is lower than multiple times the switching frequency by insertion of the inductor.

公开(公告)号：US20210135583A1

公开(公告)日：2021-05-06

申请号：US16638775

申请日：2018-02-27

申请人： OMRON Corporation

发明人： Makoto OHASHI ,  Yoshihiko YAMAGUCHI ,  Takeo NISHIKAWA ,  Takanori ISHII

IPC分类号： H02M3/335 ,  H02M7/219 ,  H02M7/5387 ,  H02M1/32

摘要： An isolated bidirectional DC-DC converter device includes a first full-bridge inverter and a second full-bridge inverter circuit connected via a transformer; the second full-bridge inverter circuit including high-side switching elements and low-side switching elements; and a control unit configured to repeatedly execute an input-side control and an output-side control when boosting the input voltage to the first full-bridge inverter circuit; the control unit selectively executes any of a first control and a second control as the output-side control. The first control maintains the high-side switching elements in the OFF state while alternating each of the low-side switching elements between the ON and OFF states; and the second control maintains the low-side switching elements in the OFF state while alternating each of the high-side switching element between the ON and OFF states.

公开(公告)号：US20180248474A1

公开(公告)日：2018-08-30

申请号：US15751462

申请日：2017-01-11

申请人： OMRON Corporation

发明人： Takeo NISHIKAWA ,  Hironori NAKADA ,  Satoshi IWAI ,  Hiroki KAWANO ,  Yuhki KAMATANI ,  Kuniyuki HIRAI

IPC分类号： H02M1/32 ,  H02M1/08 ,  H02M7/5387 ,  H02M1/44

CPC分类号： H02M1/32 ,  H02M1/08 ,  H02M1/126 ,  H02M1/44 ,  H02M7/53871 ,  H02M2001/007

摘要： An inverter has a plurality of switching elements, the states of which are each switched by a pulse signal supplied in accordance with a power grid voltage. The inverter is provided with: a switching circuit that converts an input DC voltage to an AC voltage and outputs the AC voltage to a pair of output lines; a filter circuit having output coils inserted in the output lines; a current detection sensor that detects the current flowing through the output coils; and a high-speed pulse control circuit that, when an absolute value of the detected current is a threshold value or more, stops the supply of the pulse signal to the switching circuit.

公开(公告)号：US20190027421A1

公开(公告)日：2019-01-24

申请号：US15756047

申请日：2017-01-25

申请人： OMRON Corporation

发明人： Takeo NISHIKAWA ,  Takayoshi TAWARAGI ,  Eiichi OMURA

IPC分类号： H01L23/40 ,  H01L23/498

摘要： A heat dissipation structure of a semiconductor device is provided, the semiconductor device including: an electrical bonding surface electrically connected to a substrate; and a heat dissipation surface as an opposite side of the electrical bonding surface. The heat dissipation surface makes contact with a heat spreader via a conductive TIM while the heat spreader makes contact with a heat sink via an insulating TIM. A surface of the heat spreader facing the semiconductor device includes a recess part formed in at least one part in a vicinity of an outer periphery of the semiconductor device.

公开(公告)号：US20180048229A1

公开(公告)日：2018-02-15

申请号：US15784326

申请日：2017-10-16

申请人： OMRON Corporation

发明人： Shingo NAGAOKA ,  Hiroyuki ONISHI ,  Takeo NISHIKAWA

IPC分类号： H02M3/155 ,  H02M7/217 ,  H02M5/293 ,  H02M1/32 ,  H02M7/00 ,  H02M3/335 ,  H05K7/20

CPC分类号： H02M3/155 ,  H01L23/34 ,  H02M1/12 ,  H02M1/32 ,  H02M1/4258 ,  H02M3/33592 ,  H02M5/293 ,  H02M7/003 ,  H02M7/217 ,  H02M2001/0006 ,  H02M2001/123 ,  H02M2007/4835 ,  H05K7/20

摘要： Provided is a power converter which is applied to a power converter equipped with a switching element provided on a line, and a radiator connected to a predetermined potential such as a ground potential. A noise eliminator in which a conductive member is covered with insulator is provided between the switching element (semiconductor switch) and the radiator (heatsink). A conductive member of the noise eliminator is connected to a stable potential.

公开(公告)号：US20180013291A1

公开(公告)日：2018-01-11

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

IPC分类号： H02J3/38 ,  H02J3/32 ,  H02M3/24 ,  H02M7/68

CPC分类号： H02J3/383 ,  H02J3/32 ,  H02J7/35 ,  H02M1/34 ,  H02M3/24 ,  H02M3/33584 ,  H02M7/68 ,  H02M2001/346 ,  Y02B70/1491 ,  Y02E10/563 ,  Y02E10/566 ,  Y02E70/30

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.

公开(公告)号：US20150333524A1

公开(公告)日：2015-11-19

申请号：US14742755

申请日：2015-06-18

申请人： OMRON Corporation

发明人： Takeo NISHIKAWA ,  Takuya NAKAI ,  Makoto OHASHI ,  Junichiro YAMADA ,  Wataru OKADA

IPC分类号： H02J3/38 ,  H02J13/00 ,  H02J7/00

CPC分类号： H02J3/383 ,  H02J3/32 ,  H02J7/007 ,  H02J7/34 ,  H02J7/35 ,  H02J13/0096 ,  Y02E10/563 ,  Y02E10/566 ,  Y02E70/30 ,  Y10T307/367

摘要： A power control apparatus includes: a first conversion apparatus that applies DC/DC conversion to direct current power from a power generator for generating power using natural energy, and outputs the resultant power; a second conversion apparatus that applies DC/DC conversion to the power output from the first conversion apparatus and charges a power storage unit with the resultant power, and also applies DC/DC conversion to power from the power storage unit and discharges the resultant power; a third conversion apparatus that supplies alternating current power to a power system and an alternating current load by applying DC/AC conversion to the power output from the first conversion apparatus and/or the power discharged by the second conversion apparatus; and a controller that causes the second conversion apparatus to perform the discharge so that the power output from the third conversion apparatus is higher than power consumed by the alternating current load.

摘要翻译： 电力控制装置包括：第一转换装置，其利用自然能量对来自发电机的直流电力进行直流/直流转换以产生电力，并输出所得的功率; 第二转换装置，对从第一转换装置输出的功率进行DC / DC转换，并对所述功率的蓄电单元进行充电，并对来自蓄电部的电力进行DC / DC转换，对所得的功率进行放电; 第三转换装置，通过对从第一转换装置输出的功率和/或由第二转换装置放电的功率进行DC / AC转换，向电力系统和交流负载提供交流电力; 以及控制器，其使第二转换装置执行放电，使得从第三转换装置输出的功率高于由交流负载消耗的功率。