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Thank you for your help
FvM, if I use relays, it will be only for the slow frequency, up to 200 Hz, but I dont know if there are any that can handle a current of 500A /pulse (that will be as wide 50 us wide). That will provide a nice real square pulse which is a must in my opinion for this thing...
So first, the usual white flag, I'm not a professional as most of you guys, which means that I would understand more if you use simple terms OK? :)
I'm building a power desulfator. I need to pulse batteries with high Amps at different frequencies and pulse widths. The part of generating the...
Yep, that is a good one. Thanks karesz
Here is a scan of the one I have, a friend built it and gave it to me last night, I tested the actual circuit last night and is working fine, I cant tell the exact shortest pulse width as I only have a slow usb scope, but it can go below 1 micro second as...
Xaccto, the 555 timer I'm using is from here: **broken link removed** which as you see, is a very simple circuit but its minimum pulse width is 10 us. I dont think 555 can reach a pulse width shorter than that. I built it with a selector to chose the capacitor size so i can set the range of...
karesz
The astable part is not a problem, 555 with several capacitors on a selector + variable resistance will do it, I built several ones and I think I have one ready some where, I can build a new one in no time if needed.
My problem is with the pulse width, I need to have it between 10...
Hi karesz and thank you
The .01 to .0001 % is of the output pulse width of the 555 (i.e. 0.01% times the pulse width) , if I'm getting say 100Khz, its pulse period will be 1/100000 = 0.00001 S, and at 50% duty cycle, that will give me the on/off time of 0.000005 S (5 micro second) this I think...
Hi
I built the simple 555 circuit that has a frequency range between 1 Hz to 80 KHz square pulse, but I cant find any circuit to allow me to control the duty factor of the output pulse.
I need to be able to adjust the duty factor between .01 to .0001 %
If my 555 circuit will not fit a duty...
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