"STRUDWICK.FAMILY" <[EMAIL PROTECTED]> wrote: 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
Thanks for that Paul, but my mobile phone charger is supplied free [as indeed
it's against the rules to sell a phone without a mobile charger] & my Braun
recharger is chargeable [no pun intended] I would have expected *both* chargers
to work. Indeed my mate charged up his digital camera on our last trip no
probs, all electrical gear TV, washing machine, radio/cd/tape all work with no
problems whatsoever---what makes a toothbrush charger so different from the
rest?
Barry
Nb coveredinplaque
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