Interesting errata
I called it errata, but I'm working on several different things right now. It was just an aberration that I've been able to duplicate, but not consistently.
I'm not testing Carroll's circuit, it is the 6 transistor version.
Anyway, the strange deal. The 3524 doesn't have to be 50/50 or 25 on, 25 off, etc. It could be on 60/40 and delay times could vary between sides, which is one of the things I'm playing around with. I'm not using the 3524, but a uController, so it is easy to do. There is no delay in the current setup, but I can vary the duty cycle between sides, so 0/100 to 100/0. At a certain point, both bulbs dimmed instead of both being on bright for their duration of there cycle time....the stayed that way a little while and the wave form changed quite a bit too. Then I lost it. I did this several more times, although it is not easy to reproduce. I think this is where we really want to be and the uController needs some analog processing to detect this situation to keep it there, so if you have any suggestions for me I'll take them. I do have a comparator chip with 4 comparators on it I can use and I just don't want to blow up the uP. Of course, now I need to take the output from the comparator and get it down to 5 V for the uP too...more components.
I wanted to be able to kind of zero in on this 60Hz that is floating around everywhere, so my timer interrupts every 333 usec. I can get very close to 16.3333 ms, which is the cycle time for the 60Hz. By increasing the time in 333 usec increments, I am able to stop that floating potential on the scope in it's tracks and pretty much where I want it to stop. Not that this means anything, but I think my high school math skills are still on the money at least.
Just some of the my current (that is a bad word, right JB?) work and I don't have any great news, but I'm not finished yet. Unfortunately, there are still butt loads of different things to try.
Leroy
I called it errata, but I'm working on several different things right now. It was just an aberration that I've been able to duplicate, but not consistently.
I'm not testing Carroll's circuit, it is the 6 transistor version.
Anyway, the strange deal. The 3524 doesn't have to be 50/50 or 25 on, 25 off, etc. It could be on 60/40 and delay times could vary between sides, which is one of the things I'm playing around with. I'm not using the 3524, but a uController, so it is easy to do. There is no delay in the current setup, but I can vary the duty cycle between sides, so 0/100 to 100/0. At a certain point, both bulbs dimmed instead of both being on bright for their duration of there cycle time....the stayed that way a little while and the wave form changed quite a bit too. Then I lost it. I did this several more times, although it is not easy to reproduce. I think this is where we really want to be and the uController needs some analog processing to detect this situation to keep it there, so if you have any suggestions for me I'll take them. I do have a comparator chip with 4 comparators on it I can use and I just don't want to blow up the uP. Of course, now I need to take the output from the comparator and get it down to 5 V for the uP too...more components.
I wanted to be able to kind of zero in on this 60Hz that is floating around everywhere, so my timer interrupts every 333 usec. I can get very close to 16.3333 ms, which is the cycle time for the 60Hz. By increasing the time in 333 usec increments, I am able to stop that floating potential on the scope in it's tracks and pretty much where I want it to stop. Not that this means anything, but I think my high school math skills are still on the money at least.
Just some of the my current (that is a bad word, right JB?) work and I don't have any great news, but I'm not finished yet. Unfortunately, there are still butt loads of different things to try.
Leroy
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