Hi all,
I have an issue with a Switch OLED I am trying to fix up. Currently only injecting 4.2V/1A at the charging coil to test the soft boot stage and voltages.
The cap at the top right has the correct 4.2V on the input, while the output only shows 0.8V instead of 3V3 I have expected.
On top, just by connecting the PSU to the device with 4.2V/1A and no further action, I see a current draw of 0.62A. I would have expected 0.001-0.005A.
As a next debugging step, I injected 1V at the 3V3...
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I have an issue with a Switch OLED I am trying to fix up. Currently only injecting 4.2V/1A at the charging coil to test the soft boot stage and voltages.
The cap at the top right has the correct 4.2V on the input, while the output only shows 0.8V instead of 3V3 I have expected.
On top, just by connecting the PSU to the device with 4.2V/1A and no further action, I see a current draw of 0.62A. I would have expected 0.001-0.005A.
As a next debugging step, I injected 1V at the 3V3...
Read more
Continue reading...