![]() ![]() Is it available as a single unit (as opposed to 6 in one chip), and possibly called something else? The de-bounce section of the manual trigger seems to indicate a Hex inverting Schmitt Trigger (74HC14) which looks like a 14 pin chip that has 6 inverting buffers. Now I am not sure how to change the output(s) to use the MOSFET and switch another circuit. Where the trigger of the 4017 could be activated either by the 555 timer, or a momentary pushbutton switch so the sequence the LED's could be automatically or manually sequenced.įor what I am trying get to, not only will a LED light in sequence, but I wanted use a SSR or optoisolater to switch on a low current DC circuit for each different LED that lit up. I am actually trying to combine this circuit with another from 3-20-08 (SYE) Here is a circuit from 2-10-08 (MrDeb) for a 10 LED relay sequencer, that uses an MOC3010 Optoisolator into a Triac because there is 110 volt line voltage (I didn't know how to copy the thumbnail from the other thread, which is why I just put the link to the thumbnail): Perhaps some additional info might help, although I didn't post in the Projects forum as I was trying to get the understanding of the different components myself. ![]() Thanks for any help in further explaining some of this. When is it that a SCR would be used instead of a Triac to switch a load or other low voltage circuit that is carry data and not a current load as in a lamp or motor? does the Optoisolator/triac combo or the SSR really function jsut as the electromechanical relays do in that when energized, a current can flow through the switched contacts, and when not energized, the circuit is open, and not current will flow? Does this setup function just the same as a SSR (Solid State Relay), or does the SSR still have to feed a Triac?. ![]() If I understand some of this, using an Optoisolator to feed a Triac can indeed then control an AC or DC powered load, and keep the load isolated from the logic control side of the Optoisolator. Hopefully these don't seem like really silly questions: I know there are often many ways to get to the same result with components, but. ![]()
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