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SW VandeCarr
Mar1-11, 10:10 PM
P: 2,504
Quote Quote by wildetudor View Post
Did I? :-) My argument was that, assuming that there is enough voltage available to compensate for higher impedances, then, in case of a sudden drop of impedance (R), the voltage (E) can also drop at the same time, such that at no time does the current (E/R) exceed the set value. I still don't see why that isn't the case.
OK, As I said, I'm not familiar with the details and the immediate adjustment of voltage in response to changes in impedance to maintain the current intensity would be desirable. One has to consider skin preparation materials, moisture and other factors that might cause short circuiting. I suppose it's unlikely, but for safety reasons you might want to put some reasonable upper limit on available voltage if for no other reason than not relying solely on the technology for safety.