Circuit produces variable numbers of burst pulses.(design ideas)
The add-on circuit in Figure 1 can produce one to 15 burst pulses with the same number of spaces between the bursts at a pulse width (frequency) that an external square-wave generator at the input sets. The add-on circuit produces a variable number of bursts and a variable number of spaces between the bursts by using an external square-wave generator as a source. The project in this design required a TTL burst signal, but resources did not allow for the expense of a burst generator. The circuit basically comprises two hexadecimal, divide-by-16 counters set up so that the counter on the left produces a user-selectable zero to 15 pulses and the counter on the right produces a user-selectable zero to 15 spaces. …
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