发明名称 |
Power switching circuit. |
摘要 |
<p>@ A power switching circuit for switching power repetitively to a load at a relatively low frequency employs a power switching device (14) which is driven across an isolating transformer interface (60). The drive signals are high frequency pulse signals which are modulated with the low frequency switching information, the modulations being detected in the secondary circuit (62) of the transformer. Such an arrangement affords isolated driving with fast switching edges and requires only a small transformer. Power for the detection circuit is derived by rectification (120-124) of the high frequency signals induced in the transformer secondary.</p> |
申请公布号 |
EP0154062(A1) |
申请公布日期 |
1985.09.11 |
申请号 |
EP19840301319 |
申请日期 |
1984.02.29 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
COMMANDER, ROBERT DUNCAN;FENTON, BRIAN PETER;RAMAGE, JOHN GILBERT |
分类号 |
H02M7/537;H02M7/5387;H03K17/691;(IPC1-7):H02M3/335;H02P6/02;H02P1/18 |
主分类号 |
H02M7/537 |
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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