This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision | |
| circuit_snippets [2023-12-18 02:05] – added gate-to-trig converter asdf | circuit_snippets [2023-12-18 02:15] (current) – asdf |
|---|
| |
| ===== Gate-to-trigger converter ===== | ===== Gate-to-trigger converter ===== |
| The resistor and capacitor form a differentiator with a 390 μs time constant (alternatively, a high-pass filter with $f_{3dB}\approx 408$ Hz). The diode between the comparator's noninverting input and ground provides a path for the negative spike out of the capacitor on the gate's falling edge (see Fig 1.43 in //The Art of Electronics//, 3ed). The diode on the output prevents the comparator from sinking current once its output is pulled to the negative rail. | The resistor and capacitor form a differentiator with a 390 μs time constant (alternatively, a high-pass filter with $f_{3dB}\approx 408$ Hz). The diode between the comparator's noninverting input and ground provides a path for the negative spike out of the capacitor on the gate's falling edge (see Fig 1.43 in //The Art of Electronics//, 3ed). The diode on the output prevents the comparator from sinking current once its output is pulled to the negative rail. ((https://youtu.be/yz37Yz315eU?t=510. Cf. Fig 1.38, 1.39 in //The Art of Electronics//, 3ed, which does the opposite: it takes a short input pulse and produces a longer output pulse.)) |
| |
| {{ ::gate-to-trig.png?400 |}} | {{ ::gate-to-trig.png?400 |}} |