| 摘要 |
PURPOSE:To simply generate an electric pulse at the leading and trailing point of an electric signal by constituting the generator circuit by a differentiation capacitor, a diode bridge, plural resistors and one comparator. CONSTITUTION:If an input voltage gives a rapid leading, a current flows through a route of capacitor Cd-diode D2 of bridge BD-resistor R3-diode D3 of bridge BD-resistor R6-terminal 6 of DC power terminals 5, 6. Then with a positive charging current flowing to the capacitor Cd, a voltage at a terminal 4 of DC output terminals 3, 4 of the bridge BD gets higher than the terminal 4 and a comparator 7 generates a pulse even if an input voltage shows a rapid trailing. Thus, a pulse in response to the leading/trailing of a signal being an object of response is generated by one set of comparatively simple electric circuits. |
