公开(公告)号：EP0573836B1

公开(公告)日：1997-07-30

申请号：EP93108299.4

申请日：1993-05-21

申请人： HITACHI, LTD.

发明人： Iyotani, Ryuji ,  Ueda, Akiteru ,  Narita, Hiroshi ,  Hombu, Mitsuyuki ,  Aizawa, Hidetoshi

IPC分类号： H02M1/08

CPC分类号： H03K17/08144 ,  H02M1/08 ,  H02M1/088 ,  H03K2217/0036 ,  H03K2217/0081

公开(公告)号：EP0573836A3

公开(公告)日：1994-06-15

申请号：EP93108299.4

申请日：1993-05-21

申请人： HITACHI, LTD.

发明人： Iyotani, Ryuji ,  Ueda, Akiteru ,  Narita, Hiroshi ,  Nombu, Mitsuyuki ,  Aizawa, Hidetoshi

IPC分类号： H02M1/08

CPC分类号： H03K17/08144 ,  H02M1/08 ,  H02M1/088 ,  H03K2217/0036 ,  H03K2217/0081

摘要： Disclosed is an electric power converter comprising a plurality of reactors (4), a plurality of self quenching type switching elements (1), the reactors and switching elements being series-connected per one arm, and surge-absorbing snubber circuits (6,8) connected in parallel to the switching elements respectively, the switching circuits being driven by gate drive circuits (12) connected to respective gates of the switching elements to thereby convert a DC voltage into an AC voltage or convert an AC voltage into a DC voltage, wherein the electric power converter further comprises: means (9,7) for recovering energy accumulated on at least one side of the rectors and the snubber circuits; and means (30) for generating a first DC sourcefor supplying electric power to each of the gate drive circuits, on the basis of the recovered energy. In the electric power converter constituted by a plurality of self quenching type semiconductor switching elements connected in series, high efficiency is attained through reduction in size of the gate driver and electric power saving.

公开(公告)号：EP0573836A2

公开(公告)日：1993-12-15

申请号：EP93108299.4

申请日：1993-05-21

申请人： HITACHI, LTD.

发明人： Iyotani, Ryuji ,  Ueda, Akiteru ,  Narita, Hiroshi ,  Nombu, Mitsuyuki ,  Aizawa, Hidetoshi

IPC分类号： H02M1/08

CPC分类号： H03K17/08144 ,  H02M1/08 ,  H02M1/088 ,  H03K2217/0036 ,  H03K2217/0081

摘要： Disclosed is an electric power converter comprising a plurality of reactors (4), a plurality of self quenching type switching elements (1), the reactors and switching elements being series-connected per one arm, and surge-absorbing snubber circuits (6,8) connected in parallel to the switching elements respectively, the switching circuits being driven by gate drive circuits (12) connected to respective gates of the switching elements to thereby convert a DC voltage into an AC voltage or convert an AC voltage into a DC voltage, wherein the electric power converter further comprises: means (9,7) for recovering energy accumulated on at least one side of the rectors and the snubber circuits; and means (30) for generating a first DC sourcefor supplying electric power to each of the gate drive circuits, on the basis of the recovered energy. In the electric power converter constituted by a plurality of self quenching type semiconductor switching elements connected in series, high efficiency is attained through reduction in size of the gate driver and electric power saving.

摘要翻译： 公开了一种电力转换器，包括多个反应器（4），多个自熄型开关元件（1），每个臂串联连接的电抗器和开关元件以及浪涌吸收缓冲电路（6,8 ），开关电路由连接到开关元件的各个栅极的栅极驱动电路（12）驱动，从而将DC电压转换为AC电压或将AC电压转换成DC电压， 其中所述电力转换器还包括：用于恢复累积在所述整流器和所述缓冲电路的至少一侧上的能量的装置（9,7）; 以及用于根据回收的能量产生用于向每个栅极驱动电路提供电力的第一DC源的装置（30）。 在由串联连接的多个自熄型半导体开关元件构成的电力转换器中，通过减小栅极驱动器的尺寸和节省电力来实现高效率。