Barry I will jump in if I may, sorry Ron if I am stealing your thunder, inverters from 12 volts to mains voltage have to use a devise called a step up transformer. These devices need to be fed with an alternating current(ac) at a frequency of 50 cycles per second. This is the same frequency as the mains and can be used power your TV and other equipment. The problem is how to make this ac from the direct current of your battery. Your house hold supply this is a nice sine wave with no jaggedy bits on it. The way the ac is made in most inverters is to produce square waves and put these together to produce a "sort of sine wave" which is full of jaggedy bits. These unwanted bits can cause problems depending on the design and type of equipment you are using. The more you pay for the inverter in the first place the nearer the output wave form is to that of the house hold mains supply.
Paul BARRY HOLLAND wrote: > > Ron, > You might be the man to explain why I can charge up my mobile with no > trouble on my "invertered" mains on board & yet if I try & charge up my > toothbrush the charger gets fatally damaged & will not work again!? > Please couch your explanations in simple terms in words of one syllable > so's I can [hopefully] follow it! :-)) > Cheers > Barry > Nb greenteeth > > >
