| 摘要 |
PURPOSE:To secure the generation of the pulse which features the faster phase than the input pulse repeating in the fixed cycle in a simple constitution, by generating the pulse in the period when the specified level is exceeded for the triangular wave which has the peak value at the front and rear edges of the input pulse each. CONSTITUTION:When the repetitive pulse featuring the fixed cycle is applied to input terminal (a), the inverted pulse is extracted from the collector of transistor Q1. Capacitor C1 is charged at the front edge of the inverted pulse and then discharged at the rear edge respectively. Thus the triangular wave having the peak at the front and rear edges each is generated. This triangular wave emerges at the base side of transistor Q2, and transistor Q2 conducts to the value lower than the specified level at the lower limit peak value of the triangular wave to generate the pulse in the form of the collector output. This collector output is inverted via transistor Q3 to generate the output pulse which features the faster phase of a certain time than the input pulse at output terminal (b) of the collector. |
