公开(公告)号：US20160118904A1

公开(公告)日：2016-04-28

申请号：US14887361

申请日：2015-10-20

Applicant: DENSO CORPORATION

Inventor： Satoru Yoshikawa ,  Yuji Hayashi ,  Masakazu Fukada ,  Tatsuya Murakami

IPC: H02M3/335

CPC classification number: H02M7/23 ,  H02M7/217 ,  H02M2001/007

Abstract: In a power conversion apparatus, an AC/DC conversion circuit part converts AC power supplied from an AC input and output part into DC power. A DC/DC conversion circuit part including a transformer converts the DC power supplied from the AC/DC conversion circuit part into AC power, converts converted AC power into DC power after voltage conversion by the transformer and outputs converted DC power to a DC input and output part. A smoothing capacitor is provided in a connection part between the AC/DC conversion circuit part and the DC/DC conversion circuit part to smooth a voltage at the connection part. A connection switchover part changes a maximum value of the AC voltage at the AC input and output part by switching over a connection state between the AC input and output part and an AC device.

Abstract translation: 在电力转换装置中，AC / DC转换电路部将从AC输入输出部提供的AC电力转换为DC电力。 包括变压器的DC / DC转换电路部分将从AC / DC转换电路部分提供的DC电力转换为AC电力，并且通过变压器将转换的AC电力转换成DC电压，并将转换的DC电力输出到DC输入端， 输出部分。 在AC / DC转换电路部分和DC / DC转换电路部分之间的连接部分提供平滑电容器，以平滑连接部分处的电压。 连接切换部通过切换交流输入输出部与交流装置之间的连接状态来改变交流输入输出部的交流电压的最大值。

公开(公告)号：US10270365B2

公开(公告)日：2019-04-23

申请号：US15547602

申请日：2016-02-05

Applicant: DENSO CORPORATION

Inventor： Tatsuya Murakami ,  Yuji Hayashi ,  Satoru Yoshikawa ,  Satoshi Takada ,  Masakazu Fukada

IPC: H02M1/32 ,  H02M7/5387 ,  H02M7/48 ,  H02M7/539 ,  H02M3/337 ,  H02M1/00

Abstract: A power conversion device includes an inverter which converts a DC power supplied thereto from a power supply device to an AC power using an operation of a switching element and outputs the AC power toward a load a current meter which measures an output current from the inverter, and a control unit which controls the operation of the switching element to change an output voltage waveform from the inverter. The control unit changes the output voltage waveform on the basis of the measured output current.