发明名称 |
CURRENT MODULATION MOTOR CONTROLLER |
摘要 |
An apparatus for controlling the speed of an induction motor includes a first winding and a second winding. The first winding and second winding are adapted to be coupled to an AC source for supplying an AC input signal. A first switching device is coupled to the first winding and a second switching device is coupled to the second winding. Each of the switching devices is operative in a low impedance state enabling current to flow through the associated winding of each switching device and a high impedance state preventing significant current flow through the associated winding of each switching device. A controller switches each of the switching devices from the high impedance state to the low impedance state in a sequence for controlling the current in the windings, which induces a phase shift between the AC voltages across the windings.
|
申请公布号 |
CA2267035(C) |
申请公布日期 |
2002.01.15 |
申请号 |
CA19992267035 |
申请日期 |
1999.03.26 |
申请人 |
SEQUENCE CONTROLS INC. |
发明人 |
KEMP, WILLIAM HARRY;SHIDELER, VICTOR JOSEPH |
分类号 |
H02P25/04;H02P27/16;(IPC1-7):H02P7/62 |
主分类号 |
H02P25/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|