发明名称 |
Digitally controlled variable conductance |
摘要 |
A digitally tuned active filter is disclosed. The filter is tunable by digitally controlling the variable conductance which comprises two resistors, one of which is in series with a field-effect transistor switch and those two in parallel with the other resistor. The field-effect transistor switch is switched by a digitally controlled variable duty cycle generator.
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申请公布号 |
US4009400(A) |
申请公布日期 |
1977.02.22 |
申请号 |
US19750636106 |
申请日期 |
1975.11.28 |
申请人 |
LOCKHEED MISSILES & SPACE COMPANY, INC. |
发明人 |
HARRIS, RICHARD WAYNE;LEE, HARRY THOMAS |
分类号 |
H03G5/24;H03H11/12;(IPC1-7):H03K9/06;H03K17/60 |
主分类号 |
H03G5/24 |
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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