| 摘要 |
PURPOSE:To attain wave shaping with fidelity with respect to rapid amplitude fluctuation and DC fluctuation, by setting a voltage inversion reference level inputted to one terminal of a differential comparator to the center between the peaks of an input signal. CONSTITUTION:An input signal vi has an amplitude level suitable to the input amplitude level of a comparator 3 through an amplifier circuit 21 and clamped at a clamping circuit 12. Further, the input signal vi is applied to an amplifier circuit set to a half the gain of the amplifier circuit 21 and the output is applied to a clamping circuit 13. The clamped output at the clamp circuit 13 is rectified at a peak rectifier circuit 23, smoothed at a maximum level of the input signal vi and inputted to an inverting input terminal of the comparator 3. |
