Hi, from time to time I need to diagnose a laptop at home (I have a side-job as a computer technician, but I don't want to bring my personal stuff there). I don't have enough space on my desk for a huge lab power supply (nor am I willing to spend lots of money on a good quality one at this moment). However, I have a fairly decent unused LiteOn 135 W laptop charger.
I was thinking about making a little box with one of those combo volt/amp meters you can get from eBay for $3, and screw terminals or banana plugs for an universal laptop charger cable or cables from defective chargers. Perhaps I could also add some additional overvoltage/current protection. I don't really need anything other than the 19-20V most PC laptops run on.
What do you think? Could this make a halfway decent replacement for a lab psu?
I was thinking about making a little box with one of those combo volt/amp meters you can get from eBay for $3, and screw terminals or banana plugs for an universal laptop charger cable or cables from defective chargers. Perhaps I could also add some additional overvoltage/current protection. I don't really need anything other than the 19-20V most PC laptops run on.
What do you think? Could this make a halfway decent replacement for a lab psu?
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