New answers tagged power
3
Usually you can not use any power supply outside the input range it's designed for. Multi-range power supplies will give you a rating of "Input Voltage 100..240V" on it's label. If they have dedicated input voltage rating then your input into the device should really be at that rating. You should always look for a power transformer converting your ...
2
I am not an electronics engineer, however here are a few things I noticed.
At 0:33 in the video you get a brief glimpse of the label on the unit, which reads “AC110V 12VA 50–60Hz”. That is the input voltage the unit is rated for. Strictly speaking, even 110V in the US would be out of spec and nothing is guaranteed here, but that might still be within the ...
7
This isn't quite guaranteed, but a good rule of thumb is that transformer-based power supplies are either used for one small voltage range (either 110-120V or 230-250V) or they have a selector switch.
Switch-mode power supplies can be built for a much wider range of input voltages (90-264V is common as this includes all mains voltages used globally, complete ...
31
The supply shown in the video will most likely blow up if you connect it to 230V mains. At 1:08 in the video you see the printing "200V" on the main filter cap. There is no plausible way to build a compact power supply like this that doesn't charge the main filter cap to 1.4 times the mains voltage. Also, as there is only a single cap, the voltage ...
13
I can supply an anecdote from 1997-8 that might answer your question.
A friend and I imported a couple of US units to New Zealand so that we could play US region games. As an aside, because the power supply was a removable module, we could slot the NZ power supply into the US unit and play US games, but they still put out NTSC and so ran at a different frame ...
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