Pulsed DC Transformer with Embedded Magnets

[ltseung888]

A non-blinking FLEET configuration

One of the requests was to produce a FLEET light that has a number of LEDs that can last for days with 1 rechargeable AA battery.  The battery may be recharged via Solar Panel or by human muscle.

Such a configuration may be achieved with a RMB50 commercial Toroid configured as a Joule Thief Transformer.  The frequency was tuned to 38 Hz.  The experiment was done with the DC Power Supply as power source which provided reproducible results.  A rechargeable AA battery will be used to see how long the lighting can continue.

[Paul-R]

A non-blinking FLEET configuration

One of the requests was to produce a FLEET light that has a number of LEDs that can last for days with 1 rechargeable AA battery.  The battery may be recharged via Solar Panel or by human muscle.

Such a configuration may be achieved with a RMB50 commercial Toroid configured as a Joule Thief Transformer.  The frequency was tuned to 38 Hz.  The experiment was done with the DC Power Supply as power source which provided reproducible results.  A rechargeable AA battery will be used to see how long the lighting can continue.

The voltages quoted in the image are interesting, but, in the end, energy determinations
need to be made. I still reckon that filling batteries is the way to do this.

[Pirate88179]

The voltages quoted in the image are interesting, but, in the end, energy determinations
need to be made. I still reckon that filling batteries is the way to do this.

Paul:

I have suggest filling caps, super caps to be exact.  I believe this is the "best" way to determine what is or is not really going on.  Actually, from my experience thus far, supercaps lean in the favor of what we are trying to here here on OU dot com.  All those neat little spikes we see on the scopes are, or at least appear to be, stored as usable energy.  I am not sure any battery can do this as efficiently.

Just my 2 cents.  Maybe I am hoping that if I give Lawrence a good idea, then Forever will call me.

Bill

[Paul-R]

Paul:
I have suggest filling caps, super caps to be exact.

I'm sure you're right, unless the spikes trash the dielectric.

By the way, if you charge a cap up to a high voltage, and you want to discharge it
at a smooth lower voltage without wasting any energy, how is this done?

[nievesoliveras]

You can use one of these circuits, specifically the one labeled controlled output.

Jesus