Xee2 Joulethief inverter with relay coil
Uploader Comments (jonnydavro)
All Comments (22)
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You can watch my first Youtube video (20 sec) of my Blue Blinky project (also in my blog) where some of them are blinking until I shine a light on them. It's watch?v=I7DYw8Nf0Fc.
I wish more people had left comments before my old blog got removed. Only after it was gone did people start asking where it was.
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john i want to ask you 1 question what is the watt usage is required to run that radio???? it should be on the back of the radio...thankyou
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@jonnydavro 5V/12V/24V all come apart similarly. Just gently squeeze the plastic sides til the glue breaks. Take plastic top off. Dremmel/cut the contacts section off. Job done for steel innard coil. If want to remove innard, most lever up at top point with thin screwdriver and out, or use pliers to pull metal away from windings and keep rocking metal piece til the connecting pin works loose. Fantastic thin gauge (up to 40) enameled wire on them too :)
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Hi ken25taylor.I think for some types of electrical equipment,the frequency and sine wave are very important ,some stuff is less fussy but the likes of tv's may need a true sinewave inverter to avoid lines on the screen but if its light you want to make then these type of circuits seem to work fine.Thanks for your interest.Jonny.
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Hi Patrick.Yes you can charge a cap,light some leds or probably charge a battery and like you say,maybe use the relay contacts for switching.It was the increase in output voltage which was the biggy for me and the secondary HV sources an added bonus.Thanks.Jonny.
What amazes me is that you're getting these high voltages at points that are very sensitive to HV. The emitter to base junction is rated for a max of 5V (reverse), yet you haven't fried the transistor yet. Especially considering that the maximum power for a BD139 is only 8 watts! I would put a LED across the emitter to base, cathode to base, just to protect the junction from excessive reverse voltage. That relay chattering is telling you it doesn't like AC, so it's a DC relay? How many V?
acmefixer1 1 month ago
Hi acmefixer1.The interesting thing that i have found from my experiments with this circuit and also the exciter circuits is that transistors can put up with a lot of voltage with low current.The neons are protecting the transistor in this circuit but also show there is the option of collecting the bemf in caps.The relay is for 12DC and it won't come to any harm operating like this and is only present for the relay coils inductance value.Thanks for your comment and advice.Jonny.
jonnydavro 1 month ago
@jonnydavro
I said that because the voltage across the emitter to base must never exceed 5 volts in the reverse direction. I explain why this important in my blog at rustybolt daht info. I can't do it here because of this blasted limit on size.
acmefixer1 1 month ago
Hi acmefixer1.I was an avid reader of you previous blog,"Watsonsblog"and I am glad you have started another one up.I will leave a comment.Jonny.
jonnydavro 1 month ago
Looking good Like your circuit design....Added to My Favorites & Playlists...Thank you for sharing....Tec
tectalabyss 3 months ago
Thanks tectalabyss for your interest and continued support.Jonny.
jonnydavro 3 months ago