I want to reshape the output of a 115v "modified sine wave" inverter so as to allow it's use with a 19.2 v NiCad battery charger which refuses to work with the raw inverter output. Using Spice I find that an inductor input singly loaded Tchebeyscheff filter would give a much improved sine waveform. The current thru the 237mH inductor appears to be 3amp pk with of course a very distorted voltage wave of some 190 v pk. Is it ok to use power transformer core of the above VA and assume that since there is no secondary there will be twice the winding area available. Since the inductor Q is max when conductor loss = core loss does this mean that the optimum core for an inductor will have a smaller winding window than that of a trnsformer of the same VA? I use a 19.2 v Sears drill to raise the sail on my boat and want to recharge the battery from ship's power (12v). Dick
- posted
18 years ago