My need is to build (or purchase, if existent) a nanopulser, but not an ordinary one: it has to have some specific characteristics.
The premise is:
- I have a device which acts as a variable capacitor as the environmental conditions change; its working region is in the microFarad's range (approx. 4uF...300uF)
- this device has to resonate at different harmonics and, once found the best one (the user decide which one, by observing the device's behaviour in response to the environmental conditions) that resonant point has to be be maintained "fixed", accordingly to the harmonic chosen, following automatically the minimal variations in the device's capacitance - if there where any - so that the resonance takes always place (like a radio tuner, with a PLL or a similar method).
The nanopulser circuit:
- has to produce DC sharp pulses in the amplitude range of +3V...+200V (user selectable)
- the single pulse should have a duration no longer than 100ns
- the frequency has to be variable, in a range between 35KHz...100MHz (user selectable)
- the pulses will drive a MOSFET, or an IGBT, giving the opportunity to output an amperage of 20A maximum (user selectable) to the LCR system which comprises the device itself coupled with a fixed inductor
- the frequency selected has to be maintained unchanged even if the load varies in its capacitance, inductance or resistance, through an autotuning system (PLL + VCO or similar method)
The device is a sort of oxygen/hydrogen separator (not HHO) which splits different kind of water mixtures (mainly dirty ones), plus it cleans itself, thanks to the different nanopulses issued: different polluttants mixed in the processed water require different frequencies to be separated and the device's plates require different frequencies for the periodically self-cleaning process.
A similar device can be watched here: https://www.pinterest.it/pin/542331980106296417/
The device is presently operative (in its prototype stage) and it works almost as expected but it is VERY HARD to me to achieve:
- a stable resonant frequency in the regions over 200KHz (due to the continuously capacitance changes when the different polluttants reach the cell)
- a so narrow nanopulses (I've achieved 800ns at minimum)
- an adequate power output with such pulses (I'm unable to surpass 1A total output)
My present circuit is this one: [![NanopulserCircuit]]
Why nanopulses? After a series of researches and case studies, it has been established that working with resonance allows to achieve:
- a power consumption reduction
- a better separation of pollutants from the water
- a more precise splitting in Oxygen/Hydrogen
The final goal of this research of mine is to create a filter for sanitation which extracts from dirty, black waters (sanitation, drainage, sewer) oxygen - to be released directly in open air - and hydrogen - to be further processed by a dedicated management system.
Is there a circuit (or a series of different, matchable circuits) that perform the function of nanoimpulse generation - with autotune, which is the essential part needed - as per the specifications above?
Between the nanopulser and the LC circuit (my device) there should be a circuit able to "sense" the LC's variations. How can I automatically adjust the pulser's output accordingly with the resonant point desired?