Lynx Joule Inverter

[b_rads]

@all:
You guys are way ahead of me, but thought this worth mentioning.  I salvaged a monster laminated steel transformer a while back from a UPS.  This thing is slightly smaller than a bowling ball.  I connected the circuit as shown in Lynxsteam's drawing in post #47.  Not knowing which the center tap was since secondary has black, white, and blue wires ~ connecting one way gives 20 to 25mA at 12v.  Connecting to the other line it uses 45 to 50mA at 12v.  Light quality at higher current draw is obviously better.  When adding a second bulb, the current draw is doubled.  No sacrifice in light quality.  Even at the higher draw the bulbs are not as bright as 120v mains light, but quite nice nevertheless.  I will be trying some other hookup configurations next.

Brad S

[Djoko]

Hi synchro,
I found circuit of LED driver complete with the description here :
http://www.powerint.com/sites/default/files/PDFFiles/der304.pdf
May be usefull for all of us .

Rgd
djoko

[NickZ]

    My cross over circuit is still lighting the single led bulb that is the indicator light. It's been over 12 days, now. I think that this may be perpetual, but, there is just not that much useable light. Unless you disconnect it, and let the cap charge up the D cell battery up. Then it goes up to original 1.1 volts, and led is bright, for a while.
  No luck yet with the Joule Inverter off of the different transformers, running direct.
I think that my best luck will come from solar panels dirent to 12v bulbs. No losses, and bright light.
  Nick_Z

[totoalas]

With lynx set up
12 v dc input to a 30 w 220 to 12 v xfr   690 mA  on a load of 7 meters led strip 12v  very bright
my jr 1 will dimly lit the strip at 200 mA
Direct connection of strip to battery     890 mA  the brightest ....
Some 220 v led lamps does not switch on   with this xfr

totoalas

[synchro1]

Look at Stefan's bulb transformer battery circuit below. The circuit in the base of Lynxstream's A.C. LED bulbs must duplicate the function of Stefan's relay. There's a strong chance the LED bulb circuit is generating electricity in the transformer secondary during the demagnetization phase of the charge cycle, just like Stefan's relay does in his shock charging system!