Hello this is my fist post and I am seeking advice on how to set my Rigol function generator to produce a Positive Offset Square Wave Frequency. There appears to be two options if I am to turn my frequency generator into a Hulda Clark type zapper which I would like to experiment with.
1. set the wave to square. Frequency (desired frequency) Amplitude 8vPP. Offset 4.0 VDC and Lowlevel Offset 0V. Duty cycle 50%.
2. Same as above but "the base of the square wave is set individually on every unit a minimum of 1/4 volt above zero to avoid undesirable negative spikes." (according to Hulda Clark) So it would look like this:
set the wave to square. Frequency (desired frequency) Amplitude 8vPP. Offset 4.250. VDC and Lowlevel Offset 250mV. Duty cycle 50%.
Could someone please explain why a pure Positive Offset Square Wave is altered by Hulda Clark to "avoid undesirable negative spikes? The whole idea of the zapper is to avoid any negative current as in current below the reference line. Also which way would the current be flowing from the red terminal to black on my Rigol DG1022 function generator. And any idea how much current would be flowing through these terminals?
I have no qualifications in electronics so sorry if I am using incorrect terminology.
Thanks for your help