| 摘要 |
A shaper of biphasic pulse sequence with adjustable pulse length comprises two reversible binary countdown counters each of which having clock input, synchronous parallel load and loading data enable input, computing enable input, asynchronous reset input, overflow output, an inverter, first and second two-input elements OR, a circuit comprising in series connected resistor and capacitor, a start/stop device comprising a synchronous flip-flop having asynchronous reset input, first and second elements AND. J-K flip-flop with asynchronous reset input and second invertor, third and fourth AND elements are incorporated. |
