发明名称 |
Cyclically controlled electrical equipment having a control angle which is variable over a portion of the operating cycle |
摘要 |
An electrical converter equipment for providing a d.c. voltage from an alternating current source. The converter has a unique operating cycle wherein a variable control angle is effected. The operating cycle for the converter comprises a series of half periods of the alternating current source. During different periods of time, the converter operates with different control angles. The control cycles comprise n periods of the input signal, where n is an odd number not less than three. During two half periods of a cycle, the control angle is varied. During two other half periods of the cycle, the converter operates at a fixed control angle. The half periods during which the converter is controlled with a variable control angle are time equidistant.
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申请公布号 |
US4375076(A) |
申请公布日期 |
1983.02.22 |
申请号 |
US19800138802 |
申请日期 |
1980.04.09 |
申请人 |
ASEA AKTIEBOLAG |
发明人 |
MAGNUSSON, HARRY;TALLBAECK, GOETE;WENNBERG, AKE |
分类号 |
H02M7/155;H02M7/12;H02M7/162;H02M7/19;(IPC1-7):H02M7/15 |
主分类号 |
H02M7/155 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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