| 摘要 |
A programmable pulse shaper with pulse length determined by a length of input pulses (that less than the preset length) comprises two binary counters, first of which summation one, which has clock input, asynchronous reset input; second – reversible counter-down counter having clock input, synchronous parallel load enable input and loading data inputs, counting mode enable input, asynchronous reset input, overflow input, inverter, OR element, a circuit comprising in series connected resistor and capacitor. A comparison unit is incorporated, which has inputs: “less”, “more”, “equal”, first counter is added by synchronous reset input which is connected to control pulse input and OR element second input. |
