...Everlast charger... ( Bedini )

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[FRC]

Tip35c

Instead of the Tip35c is it okay to use a 2N3055 or MJL21194 ?

FRC

[ewizard]

Can you elaborate on what it does? High efficiency charger or OU charger?

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[SkyWatcher]

Hi NOG, thanks for sharing your design.

How does it work, why is the motor speed control needed.

It looks as though the circuit has the standard Bedini bifilar self oscillator, with a third wire that's connected to the motor controller which pulses in the khz range i assume.
I have an RC electric plane motor controller i could use for this.
Does the other motor controller pulsing signal somehow add to the efficiency or performance of the charger.
Thanks for any information clarifying your circuit, thanks.
peace love light
Tyson

[ewizard]

Nice work and thanks for sharing. It does take time to get things tweaked to maximum efficiency.

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[Stephen Brown]

Question R Us?

Hi there Skywatcher
The reason i chose this motor control is because its impedance driven with a reverse blocking diode(not all motor controls have this set up) .This separates it from the rest of the circuits and causes no interference to the coil while running.Basicly the motor control puts a very small pulse through the coil at a curtain frequency and activates the trigger coil into a forced resonate state (dual oscillator)The motor control is set to minimum output and uses practically nothing to do its job.The motor controls chip is set to 2kh but i add a pot and a different cap so its adjustable.The amazing part is that the motor control can be set to 2kh and you can still adjust the main circuit to lower frequencies than 2kh with out any interference , the little pulse will just be all over the waveform instead of just before it fires ,this is where i useally adjust it to so there both at the same frequency.You can trigger a basic one circuit system as well for starters to learn from. cheers Jason[/QUOTE]

Jason,
Thanks for posting your circuit. Very intriguing. I have a solid-state set up running as we speak. It is based on {Lee (smw1998a)} OTG Pulse Generator.
(See that thread for his very good How-To pdf). It is an SSG based system. I am trying to understand the similarities and differences between the two systems of triggering. Lee has a pulse generator triggering the base with short pulses to the transistor, which can be adjusted to the resonant frequency of an existing SSG rotor. He figures out the sweet spot of the coil using the base resistor and rotor speed then sets the pulses/trigger speed to match that frequency eg. 190 Hz or 2280 rpm.
What are the important differences in these two systems, from your perspective?
You say your motor controller (KC5225) causes no interference to the coil. In other words - Does not control the speed of oscillation but allows it (the coil) to find it's natural sweet spot? Do I understand that correctly? Wow, 2 KHz, very fast.
You also said that you change capacitors depending on the batteries you are charging. How do you figure that out?
Also, additional branch circuits, #2, #3, #4 etc. would each have a transistor and be connected using Red on top and Black on bottom configuration, according to your schematic? I will definitely replicate.
I have some more questions but let's take them a few at a time.
Two years of observation. This may take a bit of explaining. Please bare with me.
Thank you for your time and effort.
Stephen

[Stephen Brown]

Questions R Us

Jason,
Could you post a link to the KC5225 motor speed controller on Mouser or another electronics outlet. I couldn't find it?
Thanks
Stephen

[Stephen Brown]

Found It

I should have looked a little harder. Sorry.
Stephen

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10A 12VDC Motor Speed Controller Kit - Jaycar Electronics

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