RESONANCE EFFECTS FOR EVERYONE TO SHARE

[najman100]

5stars LUC now you have to go bigger 

Najman

[gotoluc]

5stars LUC now you have to go bigger 

Najman

Yes, that is the first thing on the to do list

You know,... just raising the voltage will do wonders

Need to do a little fund raising tough ... however I have faith that God will provide what is needed for His mission

Luc

[TinselKoala]

@Luc: Great work! Congratulations!

But I have to ask: why aren't you monitoring the Current Draw from your 9-volt battery stack?

Could you please repeat the demo with an amp meter in series with the battery pack and the h-bridge?

In my own tests the voltage may not be dropping (much) but the current draw does go up.

thanks...
--TK.

(you shouldn't get excited about those fluctuations in the smallest digit of the DMMs. It just means the true voltage is somewhere near halfway between the two digits of the fluctuation. )

[CRANKYpants]

Dear Luc,

How long will it take you to build the crystal oscillator?

Cheers
Thane

[gotoluc]

@Luc: Great work! Congratulations!

But I have to ask: why aren't you monitoring the Current Draw from your 9-volt battery stack?

Could you please repeat the demo with an amp meter in series with the battery pack and the h-bridge?

In my own tests the voltage may not be dropping (much) but the current draw does go up.

thanks...
--TK.

(you shouldn't get excited about those fluctuations in the smallest digit of the DMMs. It just means the true voltage is somewhere near halfway between the two digits of the fluctuation. )

Hi TinselKoala,

thanks for the positive comment ... after doing the video test 9 I did hook up a DC ma meter (just for fun) to see what the ma drain was and it was 24ma with no loaded coils and 21ma with the loaded coils.

As I have said before and Groundloop also agrees!... I do not think a digital or even worse an analogue meter can give an accurate reading when the DC is switched on and off over 350,000 times a second but if you think it is fine then the numbers above are the readings.

As you also know, (being first to replicate Groundloops circuit) the switch side of the circuit consumes about that many ma with no load attached from a 45vdc input voltage. Have you also noticed that if you raise the input voltage, still with no load, it keeps going up in draw of amps. When mine gets to the 100vdc range the IR2103's are too hot to keep my finger on them . Even at 60vdc mine get to 130 degrease Fahrenheit. However I have not yet changed the resistors and added the capacitors that Groundloop has recommended in order to help with the heat issue. Hopefully these changes will help with the energy waste?

I'll report the changes once this has been done.

Luc