发明名称 |
Single-pole commutation circuit |
摘要 |
A commutation circuit for thyristors alternately turned ON by pulse width modulation (PWM) for the generation of a fundamental sine wave is characterized by two separate primary windings associated with respective positive and negative thyristors with a common secondary winding at the output, and two commutating networks for the respective poles, each including an auxiliary thyristor for fixed-commutation and the resonant combination of a capacitor and an inductor. The thyristors, the commutating networks, the DC source, and the output transformer have a symmetrical disposition as well as symmetrical commutation steps.
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申请公布号 |
US4173779(A) |
申请公布日期 |
1979.11.06 |
申请号 |
US19780967829 |
申请日期 |
1978.12.08 |
申请人 |
WESTINGHOUSE ELECTRIC CORP |
发明人 |
ABBONDANTI, ALBERTO;KERNICK, ANDRESS |
分类号 |
H02M7/521;H02M3/315;H02M7/515;H02M7/523;(IPC1-7):H02M3/31 |
主分类号 |
H02M7/521 |
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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