seanm
Rank: Trio
Posts: 162
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Post by seanm on Dec 14, 2022 21:23:40 GMT
Dear All,
Firstly 3 caveats :
1. I have not tried this 2. This is a bit of a solution looking for a problem 3. This area seems to be something of a black art since I have a rather good el-cheapo Chinese mobile which *can* charge lightening fast (67W in turbo mode). However, exactly what is and what is not required from a cable/charger combo is beyond my rhyme and reason
Modern PD USB-C powerbanks and chargers can provide voltage and current combinations from 5V through 9, 12 and up to 20V at 5A. They can be used to power and recharge modern laptops etc.
I know that a number of people use battery power banks to power things like Raspberry Pi etc and I know that some people require voltages beyond 5V.
The youTube video below uses a tiny PCB which allows you to toggle (or preset) the output of a modern PD battery pack or charge to 5, 9, 12 or 20V all potentially up to 5A (assuming they are supported)
Cheers Sean
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Post by MartinT on Dec 14, 2022 21:43:13 GMT
Looks like a flyback (switchng) circuit to generate higher voltages than the 5V input.
Be careful with those batteries, LiPo has enormous charge densities and can catch fire if misused.
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