| 摘要 |
PURPOSE:To make the tilt of the leading edge and the trailing edge of the output waveform from a pulse output circuit constant without depending on load by feeding back the output waveform so as to detect the tilts of the leading edge and the trailing edge and generating a control signal so as to correct the output waveform. CONSTITUTION:After feeding back the output waveform from the output circuit 1 so as to input a leading edge and trailing edge tilt detection part 2, a differential waveform corresponding to the tilt of the leading edge and the trailing edge is generated. A peak holding circuit detects and holds a peak value and an output waveform control signal generation part 3 compares the detected value with a specified value and gives the control signal which corrects the leading edge and the trailing edge time of the output waveform to the final stage of the output circuit 1. Thus, the optimum tilt that the tilts of the leading edge and the trailing edge of the output waveform does not alter even by the load capacity can be always held and a crosstalk which occurs, because the load is light and the tilt is too sharp can be prevented.
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