-
公开(公告)号：US20170063219A1
公开(公告)日：2017-03-02
申请号：US15119742
申请日：2015-02-19
申请人： OMRON Corporation
发明人： Takashi HYODO , Shuhei KATO
CPC分类号： H02M1/4233 , H02M1/34 , H02M7/219 , Y02B70/126 , Y02P80/112
摘要： A power conversion device includes: a bridge circuit; a filter provided on an alternating current side of the bridge circuit, and connected to a neutral point; a reactor between the bridge circuit and the filter; a smoothing circuit provided on a direct current side of the bridge circuit; a snubber circuit between the bridge circuit and the smoothing circuit; and a switch circuit provided between the smoothing circuit and the snubber circuit. The smoothing circuit includes two smoothing capacitors connected in series between a positive line and a negative line. The neutral point is connected between the two smoothing capacitors. The snubber circuit includes two snubber capacitors connected in series between the positive line and the negative line. The neutral point is connected between the two snubber capacitors. The switch circuit includes a first switch provided on the positive line and a second switch provided on the negative line.
摘要翻译： 电力转换装置包括：桥接电路; 滤波器，设置在桥式电路的交流侧，并连接到中性点; 桥电路和滤波器之间的电抗器; 设置在桥式电路的直流侧的平滑电路; 桥接电路和平滑电路之间的缓冲电路; 以及设置在平滑电路和缓冲电路之间的开关电路。 平滑电路包括串联连接在正极线和负极线之间的两个平滑电容器。 中性点连接在两个平滑电容器之间。 缓冲电路包括串联连接在正极线和负极线之间的两个缓冲电容器。 中性点连接在两个缓冲电容器之间。 开关电路包括设置在正极线上的第一开关和设置在负极线上的第二开关。
-
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
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：US20220294440A1
公开(公告)日：2022-09-15
申请号：US17627870
申请日：2019-08-07
申请人： OMRON Corporation
发明人： Hironori TAUCHI , Yuki ITO , Takashi HYODO
IPC分类号： H03K17/082
摘要： An unbalanced failure detector circuit according to one aspect of the present disclosure is provided for detecting an unbalanced failure of an electronic device apparatus including electronic devices, and the electronic device apparatus includes a plurality of current paths connected in parallel. The unbalanced failure detector circuit includes a detector unit, and a controller. The detector unit has a plurality of coils connected in series and arranged to surround the plurality of current paths, respectively, and is configured to output a coil sum voltage which is a sum of induced voltages generated across the plurality of coils by currents flowing through the plurality of current paths. The controller is configured to detect the unbalanced failure of the electronic device apparatus when the coil sum voltage outputted from the detector unit exceeds a predetermined value range.
-
公开(公告)号：US20200235674A1
公开(公告)日：2020-07-23
申请号：US16489703
申请日：2017-11-21
摘要： A power supply control device according to one or more embodiments may be provided, in which a power conversion device has a configuration in which a resonant circuit is provided on an output side of a matrix converter using switching circuits including snubber elements so as to perform AC-AC conversion of output from a multi-phase AC power supply. The power conversion device is controlled to make an amplitude of an output current, a phase of the output current and an instantaneous reactive power as close to a control target as possible. The amplitude and the phase of the output current and the instantaneous reactive power are derived based on: an input voltage and a phase of a multi-phase current input to the power conversion device; and characteristics of the resonant circuit.
-
5.发明申请CURRENT RESONANT TYPE DC VOLTAGE CONVERTER, CONTROL INTEGRATED CIRCUIT, AND CURRENT RESONANT TYPE DC VOLTAGE CONVERSION METHOD 审中-公开电流谐波型直流电压转换器，控制集成电路和电流谐波型直流电压转换方法公开(公告)号：US20170054379A1
公开(公告)日：2017-02-23
申请号：US15119737
申请日：2015-02-19
申请人： OMRON Corporation
发明人： Takeo NISHIKAWA , Takashi HYODO , Toshiyuki YOKOI
CPC分类号： H02M3/33569 , H02M1/088 , H02M2001/0022 , H02M2001/0058 , H02M2007/4815 , H02M2007/4818 , Y02B70/1433 , Y02B70/1441 , Y02B70/1491
摘要： A current resonant type DC voltage converter includes: a switching circuit configured to generate an AC voltage from a DC input voltage; a LC resonance circuit configured to resonate in response to application of the AC voltage to a resonant capacitor and a resonant coil; a transformer having a primary side connected in series to the LC resonance circuit; a parallel resonant inductance present in parallel to the transformer; a rectifier circuit configured to rectify a current appearing on a secondary side of the transformer to generate a DC output voltage; and a parallel resonant inductance adjustment circuit configured to change the parallel resonant inductance.
摘要翻译： 电流谐振型直流电压转换器包括：开关电路，被配置为从直流输入电压产生交流电压; LC谐振电路，其被配置为响应于将AC电压施加到谐振电容器和谐振线圈而谐振; 变压器，其一次侧与LC谐振电路串联连接; 与变压器并联的并联谐振电感; 整流电路，被配置为对变压器次级侧出现的电流进行整流以产生直流输出电压; 以及配置成改变并联谐振电感的并联谐振电感调节电路。
-
公开(公告)号：US20200014308A1
公开(公告)日：2020-01-09
申请号：US16490066
申请日：2017-11-21
IPC分类号： H02M5/293
摘要： A power supply control device according to one or more embodiments may be provided to: control a power conversion device that has a configuration in which a resonant circuit is provided on an output side of a matrix converter including switching circuits having snubber elements, and that performs AC-AC conversion of output from a multi-phase AC power supply. The power supply control device performs control such that: the output current, which has a phase difference caused by the resonant circuit, is negative during a period in which an absolute value of a positive-going output voltage that is output from the power conversion device increases while the output current is positive during a period in which the absolute value of a negative-going output voltage increases; and a polarity of the output current does not change within a period in which the snubber element is discharged.
-
公开(公告)号：US20160352238A1
公开(公告)日：2016-12-01
申请号：US15116539
申请日：2015-01-27
发明人： Satoshi OGASAWARA , Agnes HADINATA , Takashi HYODO
IPC分类号： H02M5/04
CPC分类号： H02M5/04 , H02M5/16 , H02M5/297 , H02M2001/0058 , Y02B70/145 , Y02B70/1491
摘要： A power conversion circuit uses a multiphase AC power source as an input and has a plurality of bidirectional switches each of which is connected to each phase of the multiphase AC power source. A switching control circuit controls the states of the plurality of bidirectional switches and switches a combination of two phases of the multiphase AC power source, relating to interphase voltage to be outputted from the power conversion circuit to a load side. A resonant circuit is connected to an output side of the power conversion circuit. The switching control circuit, at a time of switching of the combination of the two phases that output the interphase voltage to the load side, switches the states of the bidirectional switches relating to the switching, by soft switching.
摘要翻译： 电力转换电路使用多相交流电源作为输入，并且具有多个双向开关，每个双向开关连接到多相交流电源的各相。 开关控制电路控制多个双向开关的状态，并且将多相交流电源的两相的组合与从电力转换电路输出到负载侧的相间电压相关联。 谐振电路连接到电力转换电路的输出侧。 开关控制电路在将相间电压输出到负载侧的两相的组合切换时，通过软开关切换与开关有关的双向开关的状态。
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.011 秒)
