公开(公告)号：US3932798A

公开(公告)日：1976-01-13

申请号：US529753

申请日：1974-12-05

申请人： Brian John Chalmers ,  John Philip Gibson

发明人： Brian John Chalmers ,  John Philip Gibson

IPC分类号： H02M7/515

CPC分类号： H02M7/5155

摘要： An electrical inverter comprises positive and negative supply lines, first and second thyristors the anodes of which are connected to the positive line and the cathodes of which are connected respectively to the anodes of third and fourth thyristors. An oscillatory commutating circuit including a capacitor and an inductor is provided and which is connected between the anodes of the third and fourth thyristors and also a firing circuit is provided to provide gate signals to the first, fourth, third and second thyristors in that order. In addition, means is provided to over-damp the oscillatory circuit thereby to limit the commutating voltage.

摘要翻译： 电逆变器包括正负电源线，第一和第二晶闸管，其阳极连接到正极线，其阴极分别连接到第三和第四晶闸管的阳极。 提供了包括电容器和电感器的振荡换向电路，其连接在第三和第四晶闸管的阳极之间，并且还提供了一个触发电路，以按顺序向第一，第四，第三和第二晶闸管提供栅极信号。 此外，提供了用于过度阻尼振荡电路的装置，从而限制整流电压。

公开(公告)号：US3967184A

公开(公告)日：1976-06-29

申请号：US536157

申请日：1974-12-24

申请人： Brian John Chalmers ,  John Philip Gibson

发明人： Brian John Chalmers ,  John Philip Gibson

IPC分类号： H02M7/515

CPC分类号： H02M7/5155

摘要： An electrical inverter comprises positive and negative supply lines across which is connected a first series circuit including the anode-cathode path of a first thyristor and the anode-cathode path of a second thyristor. A second series circuit bridges the supply lines and includes a pair of capacitors. In addition a commutating circuit is provided for the first and second thyristors, and this includes a transformer having a secondary winding connected between a point intermediate the first and second thyristors, and the capacitors of the second series circuit, and the primary winding of the transformer is connected in a series circuit, one end of which is connected to the point intermediate the first and second thyristors. The arrangement is such that when the commutating circuit is operated, current flow in the primary and secondary windings of the transformer acts to reduce the current flowing in the conducting thyristor to zero.

摘要翻译： 电逆变器包括正和负电源线，两条电源线连接有包括第一晶闸管的阳极 - 阴极路径和第二晶闸管的阳极 - 阴极通道的第一串联电路。 第二串联电路桥接电源线并且包括一对电容器。 此外，为第一和第二晶闸管提供换向电路，并且这包括一个变压器，其具有连接在第一和第二晶闸管之间的点之间的次级绕组和第二串联电路的电容器和变压器的初级绕组 连接在串联电路中，其一端连接到第一和第二晶闸管的中间点。 这种布置使得当整流电路被操作时，变压器的初级和次级绕组中的电流流动用于将在导通晶闸管中流动的电流减小到零。

公开(公告)号：US3939392A

公开(公告)日：1976-02-17

申请号：US533620

申请日：1974-12-17

申请人： Brian John Chalmers ,  John Philip Gibson

发明人： Brian John Chalmers ,  John Philip Gibson

IPC分类号： H02M7/527 ,  H02M1/18

CPC分类号： H02M7/527

摘要： An electrical inverter comprises first and second supply lines, which in use are connected to the positive and negative terminals of a d.c. supply. An inverting network is connected between the supply lines and has output terminals for connection to the load. A current sensing device is provided in one of the supply lines and is operable when the current flow in the supply line exceeds a predetermined value, to stop current flowing in the load for a predetermined period of time.

摘要翻译： 电逆变器包括第一和第二供电管线，其在使用中连接到直流负极端子和负极端子。 供应。 反相网络连接在电源线之间，并具有用于连接到负载的输出端子。 电流检测装置设置在一条电源线中，并且当电源线中的电流超过预定值时可操作，以在预定时间段内停止在负载中流动的电流。