发明名称 |
Frequency sensitive switching circuit |
摘要 |
A switching circuit for energizing a load, such as fluorescent lamp ballasts, in response to a control signal of preselected frequency superimposed on AC power circuits which supply the load. A triac is gated to conduct the AC power to the load by a circuit including an impedance element and a series resonant LC network tuned to the frequency of the control signal. The gate circuit is arranged to block the control signal during all but a small portion of each half cycle of the applied AC power, thereby reducing the consumption of control signal power.
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申请公布号 |
US4169259(A) |
申请公布日期 |
1979.09.25 |
申请号 |
US19780912606 |
申请日期 |
1978.06.05 |
申请人 |
GTE SYLVANIA INCORPORATED |
发明人 |
HIDLER, HENRY T.;PLUMB, JOHN L. |
分类号 |
H02M1/08;G05F1/45;H02J13/00;H02M7/155;H03K17/725;H05B41/00;(IPC1-7):H04Q9/10;H05B41/23 |
主分类号 |
H02M1/08 |
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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