Successful TPU-ECD replication !

[c0mster]

Please use a cap and diode on your supply.


Cam

[c0mster]

http://www.hauntedfrog.com/gt/movies/2007/duckon/SingingTeslaShow.html

[Merkhava]

Hi All,

Some ideas to throw out...

Maybe we can use music as a guide.... just as three nicely toned voices make for a great sounding trio.

Think of musical chords on a piano or guitar. Consider the audio frequencies of three notes that sound beautiful together. Then multiply those three audio frequencies by higher and higher octaves as test frequencies for triggering a Radiant Energy device.

Perhaps we can use our sensory perceptions of harmonious beauty and efficiencies in the "slow realms" to extrapolate relationships and harmonies in the "faster realms".

Just a thought....

Robby

[replicator]

If you interested in, here is a good page to create really simple and good PWM generator:

http://www.cpemma.co.uk/pwm_erg.html

You can find elements which is responsible for freq and PWM.

" ... frequency = R2 / (4 x R3 x R1 x C1) ..."

Todo: eliminate 2N2222 and motor driver then put 74HCT14 Schmitt-trigger (with 6ns raise time) to the output of final OpAMP. Then connect to Mostfet's driver the 74HCT's output. Note: 74HCTxx require 5Volts ,so we need additional 5V stabalizer block.)

Regards,
Replicator

[Jdo300]

Jason:

Thanks again. can you vary the duty cycle on these?

chrisC

Hi Chris,

No, you can't vary the duty cycle. They are set at 50%. That is why I am implementing the multivibrator ICs so that I will have complete control over that. All you need is a cap and a pot on the board to change it. For this particular setup, we want to make the pulse width as as small as possible since we only need the rising and falling edges of the spile for the 'kick' effect. Once the electron current starts moving, the RE is gone and the rest is wasted energy input. The only case where this would be a good thing is if we intentionally want to load the coil's magnetic field. Then in this case, we would make the pulse width only wide enough to completely saturate the coil and then we get a nice BEMF spile on the shut off which would be at a much higher voltage than the input spike (depending on the coil inductance). We can also implement the BEMF capture techniques also but I'm saving that for later. One step at a time.

God Bless,
Jason O