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Spockie-Tech
Site Admin
Joined: 31 May 2004
Posts: 3160
Location: Melbourne, Australia
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To check it properly, you need a Oscilloscope to look at the output waveform..
Without a scope, you can have a guess by looking inside.. if its a linear supply (with a big-ass transformer inside) but doesnt have some big beefy capacitors and heavily heatsinked power transistors inside, then chances are its an half-rectified, un-filtered unregulated supply.
Most of cheap powerful ones are - its the big capacitors and power regulators that cost the $$.
If its a switch-mode (lots of electronic components, no big heavy iron transformer), then you definitely need to scope it to see how nice the power it makes is.
If all you want to do is charge wet-cell lead acids, its not so critical, as long as you listen for the fizz and disconnect when charged. If its sealed lead-acids you want to charge, or operate delicate electronic equipment that wants a nice stable input, then I wouldnt use it directly.
You could hook it up to a small wet-cell car battery and run a computer charger from that.. the battery will soak up any noise from the charger and smooth out the power.. as long as you dont mind lugging the battery around with it. _________________ Great minds discuss ideas. Average minds discuss events. Small minds discuss people
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Wed Jul 12, 2006 11:25 am |
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