公开(公告)号：US4004203A

公开(公告)日：1977-01-18

申请号：US533526

申请日：1974-12-17

申请人： Brian John Chalmers ,  John Phillip Gibson

发明人： Brian John Chalmers ,  John Phillip Gibson

IPC分类号： H02P27/06 ,  B60L11/18 ,  H02P23/06 ,  H02P5/34

CPC分类号： H02P23/06 ,  B60L11/1807 ,  Y02T10/646 ,  Y02T10/648 ,  Y02T10/7005

摘要： A drive system comprises a brushless multi-phase motor which is supplied with power by way of an inverter including thyristors which are fired by a firing network. The firing network is supplied with information relative to the position of the rotor of the motor, by means of a transducer and this information flows by way of a logic network. Also provided is a current sensing device, a signal from which is passed through a control network to the logic circuit, and the logic circuit acts to modify the signals applied to the inverter in the event that the current flowing in one of the d.c. supply lines to the inverter exceeds a predetermined value for more than a predetermined length of time.

摘要翻译： 驱动系统包括无刷多相电动机，其通过包括由点火网络点火的晶闸管的逆变器供电。 通过传感器向点火网络提供相对于电动机的转子位置的信息，并且该信息通过逻辑网络流动。 还提供了电流感测装置，信号通过控制网络传递到逻辑电路，并且逻辑电路用于修改施加到逆变器的信号，其中电流在直流电流之一中流动。 到逆变器的供电线路超过预定值超过预定时间长度。

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：US3991351A

公开(公告)日：1976-11-09

申请号：US533525

申请日：1974-12-17

申请人： Brian John Chalmers

发明人： Brian John Chalmers

IPC分类号： H02K19/12 ,  H02P25/02 ,  H02P1/50

CPC分类号： H02K19/12 ,  H02P25/03

摘要： A brushless A.C. synchronous motor includes a stator assembly having a stator winding and an inverter for feeding the stator winding, a rotor assembly including a field winding and a transformer having a primary winding on the stator assembly and a secondary winding on the rotor assembly. The primary winding is fed by an oscillator on the stator assembly, and the secondary winding provides an output for the field winding by way of rectifier.

摘要翻译： 无刷交流同步电动机包括具有定子绕组和用于馈送定子绕组的逆变器的定子组件，包括励磁绕组的转子组件和在定子组件上具有初级绕组的变压器和转子组件上的次级绕组。 初级绕组由定子组件上的振荡器馈送，次级绕组通过整流器提供励磁绕组的输出。

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：US3956679A

公开(公告)日：1976-05-11

申请号：US533618

申请日：1974-12-17

申请人： Brian John Chalmers

发明人： Brian John Chalmers

IPC分类号： H02K29/00 ,  H02K19/12 ,  H02P25/02 ,  H02P1/46

CPC分类号： H02K19/12 ,  H02P25/03

摘要： A brushless a.c. synchronous motor comprises a stator assembly having a stator winding which is supplied with power by an invertor. The main input power to the invertor flows through the primary winding of a transformer the secondary winding of which supplies current by way of a rectifier, to a field winding of the rotor assembly of the motor.

摘要翻译： 无刷a.c. 同步电动机包括具有由逆变器供电的定子绕组的定子组件。 逆变器的主要输入功率流过变压器的初级绕组，其次级绕组通过整流器将电流提供给电动机的转子组件的励磁绕组。

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。