Agentgates´s TPU setup with strange wavehill hump

[broli]

It's a good thing you can't modify your first post.  Many people have responded to it, and if you were to change it, the essence of the conversation might be corrupted.  It makes all kinds of sense to lock-out edits after a certain amount of time has elapsed in a forum like this, as it precludes members' ability to "re-write history", so-to-speak.  I'm not suggesting that this is what you intend, but still, for the integrity of the thread, I suggest that you just compose a new post which incorporates whatever modifications / corrections you wish to convey.  It's more "transparent" that way.

There's a difference between modifying and adding. Out of personal experience I like first posts having the substance of the thread and being updated as significant milestones are reached. I don't know about you but reading an entire thread just to get to some fundamental spec is very inefficient. The thread is made for discussion and progress to reach said milestones. Not a waiste of time where new commers spent hours going through it just to find a single page useful. After they are quickly "briefed" on the current situation by the first post they can immediately become part of the discussion by not having to read the entire thread. This is imo more efficient.

[hartiberlin]

I will let AgentGates modify his first post,
when he will finally show something from the old setup or
the new setup.

We are still waiting for promised photos and videos
of his old setup, where he said he could
light a 50 Watts bulbs.

The hump wave from Marek looks interesting, but maybe it is really
from the diode ?
We don´t know the groundline on his scopeshot and have
no further info on the volts/div and at which device location it was exactly taken.

[zerotensor]

...After they are quickly "briefed" on the current situation by the first post they can immediately become part of the discussion by not having to read the entire thread. This is imo more efficient.

Yes if it's just updates or well-documented corrections, then I agree with you-- but in general I still think it is wise to have a time limit on edits -- even for the OP -- especially for the first post, actually, since this is what starts the ball rolling.  If there has been enough progress that the original post no longer captures the essence of the situation, then the thread should be closed and a new one started in its place, IMO.

[plengo]

@agentgates

quick question: when you say pulse at 50% duty cycle you mean to make a square wave from 0 volts to 30 volts (let's say) and 50% of the time, goes to 0 volts and repeat over again?

You are NOT using AC so that it would go from -30 volts to +30 volts, correct?

If that is the case it makes A LOT OF SENSE to me why this really works.

I wait eagerly for the answer, thanks.

Fausto.

[ramset]

Tony
Thinking positive !!{this is a very important part, along with patience]

Keeping the "Vibes" going the right way.

Hope you feel better


Chet