发明名称 |
Distortion-free limiter for a power amplifier |
摘要 |
A distortion limiter for limiting the amount of distortion of an inverting amplifier is disclosed. A comparator produces a pulse when a signal level at an inverting input of the inverting amplifier exceeds a reference voltage level. The pulse charges a capacitor. When the charge on the capacitor is sufficient to raise the gate voltage of a junction field-effect transistor (FET) above cutoff, the FET shunts the input signal to reduce its level. The distortion characteristics can be controlled by using a voltage divider to adjust the voltage across the FET. A bias voltage at the gate of the FET, keeps the FET turned off when the inverting amplifier is not clipping.
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申请公布号 |
US5327101(A) |
申请公布日期 |
1994.07.05 |
申请号 |
US19930085369 |
申请日期 |
1993.07.02 |
申请人 |
FORD MOTOR COMPANY |
发明人 |
NEELY, GERALD D.;MOLINAR, ALFONSO;KROCHMAL, ANDREW C.;ZEFF, ROBERT T. |
分类号 |
H03G5/16;H03F1/32;H03G1/04;H03G11/00;H03G11/04;(IPC1-7):H03G3/30 |
主分类号 |
H03G5/16 |
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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