This DD1718PB_12V boost converter from Aliexpress takes 5V in and converts to +-12V, so it can usefully drive op-amps (which use a split-rail power supply) from a single rail input, even a Li-Ion battery.
In this video, I test that it works and use it in a simple audio circuit to assess how noisy it is. I put the 'scope on it too.
Looking at the board online today, it's under £3.
In this video, I test that it works and use it in a simple audio circuit to assess how noisy it is. I put the 'scope on it too.
Looking at the board online today, it's under £3.
- Category
- Audio
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