| 摘要 |
PROBLEM TO BE SOLVED: To eliminate an overshoot that is caused by processing at HPF. SOLUTION: An upper side envelope V3 that was gained by rectifying an output voltage V2 of HPF 2 at a half-wave rectification circuit is subtracted by a subtracter 5. With this, the overshoot that has been encountered as a result of passing through the HPF 2 is offset by the upper side envelope, thus being eliminated. |
