-
公开(公告)号：EP4318920A1
公开(公告)日：2024-02-07
申请号：EP22780015.8
申请日：2022-03-11
申请人： DENSO CORPORATION
发明人： KAZAOKA, Ryoya , SHINDO, Yusuke , KUBO, Shunichi , TOSHIYUKI, Ken
IPC分类号： H02M7/48
摘要： A power converter has a capacitor (31) and a power conversion unit (30) having a series-connected unit composed of an upper arm side switching element (QUH, QVH, QWH) and a lower arm side switching element (QUL, QVL, QWL). The capacitor is connected in parallel with the series connection unit. The power conversion unit supplies electric power to a motor (40). A controller (50) for the power conversion unit has a frequency characteristics estimation part (62) estimating frequency characteristics of a battery current of the battery when a current is flowing between the power convertor and the battery (10), a ripple current setting part (63) determining a ripple frequency of a ripple current contained in the battery current based on the frequency characteristics of the battery current, and a control part (59) performing a switching control of the switching elements based on the ripple frequency in order to generate the ripple current.
-
公开(公告)号：EP2823553A1
公开(公告)日：2015-01-14
申请号：EP13716040.4
申请日：2013-03-05
摘要： A power supply circuit converts an input electric power into a target voltage and outputs the target voltage is equipped with a power semiconductor element that is connected between an input and an output, a drive circuit that adjusts operation of the power semiconductor element on the basis of a result of a comparison between an output voltage of the power supply circuit and a threshold voltage based on a first reference voltage, and a first monitoring circuit that compares the output voltage with a normal range based on a second reference voltage and outputs a first signal when the output voltage is deviant from the normal range. In addition, the first reference voltage and the second reference voltage are generated in different reference voltage generation circuits.
-
搜索结果
2 条记录 (耗时 0.009 秒)
