No, the 160VA is for heater power... The output ia 2x250VA - they are behind the output tubes and only one is visible. The PT is the big one in the corner - 572VA160W power toroids for output? How much power are you getting from them?
I get 113W RMS @ 30Hz from those. Of course, the OPTs are connected interleaved.
What's happened to this thread? It was all Jules Verne and aiming for the moon.
What about a gun that fires those little silver nitrus bottles ( a bit like those old greem CO2 things for soda syphones ) that appear at the side of the road?
What about a gun that fires those little silver nitrus bottles ( a bit like those old greem CO2 things for soda syphones ) that appear at the side of the road?
What happened is the thread somehow got back on topic - for a little while anyway.
Never seen little nitrous bottles on the roadside here.
Never seen little nitrous bottles on the roadside here.
I used to see them a lot in Delft, but never in Haarlem, 50 km or so north from Delft. Apparently taking nitrous oxide and throwing the little bottle (ampoule, vial?) it came in on the street is a very local habit (as well as a very bad one).
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Here, that would be $1 50ml bottles of FireBall.bottles ... that appear at the side of the road?
https://en.wikipedia.org/wiki/Fireball_Cinnamon_Whisky
https://www.fireballwhisky.com/ {note this site's "Over 18?" question has the "right" answer circled}
https://www.fireballwhisky.com/swag/product-page.fireball-whisky-50ml-bottle.html
For a while we were picking bottles from our ditch almost every day. It even displaced the longtime Maine favorite, Allen's Coffee Brandy. (Ethanol to make you sleep and caffeine so you can't sleep.)
Whippet bottles, being steel, at least bring $20/ton at the scrapper's. The $0.95 (set so it is $1.00 with tax) tiny Fireball bottles are plastic, worthless or worse.
Back to school! You forget the 2 x diode dropout voltage AND ripple voltage6.3*1.414=8.9... Plenty of drop out room for a 7805.
It won’t work except in rare cases. The exception confirms the rule.
A 6.3V transformer will even not work OK with some 5V LDO regulators 🙂
It will work perfectly with Schottky diodes and the right capacitor, I have done that, no problems whatsoever, other than needing a big cap.Back to school! You forget the 2 x diode dropout voltage AND ripple voltage
It won’t work except in rare cases. The exception confirms the rule.
A 6.3V transformer will even not work OK with some 5V LDO regulators 🙂
Yeah don’t calculate but “just do something” 😀It will work perfectly with Schottky diodes and the right capacitor, I have done that, no problems whatsoever, other than needing a big cap.
You missed #53 apparently.Back to school! You forget the 2 x diode dropout voltage AND ripple voltage
It won’t work except in rare cases. The exception confirms the rule.
A 6.3V transformer will even not work OK with some 5V LDO regulators 🙂
BTW calculation also works 😎Yeah don’t calculate but “just do something” 😀
If the model for your source is accurate. Looks optimistic to me. Just a hundredth of an ohm, and no leakage L? Yeah, right. Let me know where you can buy that transformer, I want a few.
As I mentioned above, I have tried this in real life, more than once. I just modelled it quickly to see the values. I just checked the power transformer I use, Hammond 372JX, 0.027 ohms DC resistance on the 6.3V secondary. Maybe you should buy one 🙂If the model for your source is accurate. Looks optimistic to me. Just a hundredth of an ohm, and no leakage L? Yeah, right. Let me know where you can buy that transformer, I want a few.
I just tried simulation using 0.1 ohm and 1000pf. Still works, a bit of ripple appeared, cured by increasing the cap to 16000uF.
It's at the edge of failing anyway. The slightest deviation of the mains voltage will make the 7805 go in dropout, as was to be expected.
True, but then I one can use a LDO regulator. The 78xx series is ancient. Alternatively, just use a doubler if the transformer is good enough for the peak currents.It's at the edge of failing anyway. The slightest deviation of the mains voltage will make the 7805 go in dropout, as was to be expected.
Now can you sim this using 12VCT and MBR6045? 🙂 C1=20,000µF It'd be interesting to compare.
Any other diode choice? It does not show in my LTSpiceNow can you sim this using 12VCT and MBR6045? 🙂 C1=20,000µF It'd be interesting to compare.
Using my diodes:
Green: full bridge CT. Blue: the other one.Thanks, however...
12VCT == full wave with centre tap 🙂
Try the MBRB2545CT?
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True, but then I one can use a LDO regulator. The 78xx series is ancient. Alternatively, just use a doubler if the transformer is good enough for the peak currents.
Then we agree. I think everyone agreed straight from the start that it can work with Schottky diodes and an LDO.
Green: full bridge CT. Blue: the other one.
View attachment 1048341
I think V2 and V3 are supposed to be 6 V RMS each, together 12 V.
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