constant pulse width oscillator

7-46 — elektor july/august 1981 47 constant pulse widthoscillator Switching oscillators on and off can sometimes give rise to problems due to the fact that the first or last (or both) pulses can vary in width from maximum 0 5..15V Q 1C1 ID. 0 N1..N4=1C1= 4093 "see text 81548.1 those following. This is illustrated in figure 2® . The sacrifice of two extra gates may well be worth d"enifits that this constant pulse width oscillator the can provide. down to almost non-existent. In most cases, it is probably true to say that the very narrow pulse or "spike" will be the one to cause the problems. It all switch off stems from the fact that the oscillator ci llator ith os time is invariably not synchronised w output. shows the usual simple gate oscillator Figure 1B that is often found in digital circuits, probably mentioned above as can be seen from the waveform The variation in pulse illustration in figure 20. width is readily apparent. The last pulse in the second set may prove to be...