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Converting 5V to +/-12V for Audio Circuits (#54)



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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.
Category
Audio
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