Uploaded February 2021 | Updated September 2026, 1 week ago

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#110 In this video I continue working on the LM317 High Voltage supply. I build the circuit, both in a positive and negative voltage versions, and then I proceed to perform some basic tests, just to see that it works. And, well, most features work, but there is still a few kinks that need to ironed out...

More in this mini-series:
Part1: youtu.be/Qud914Pqlqs
Part2: youtu.be/hp2wc6N_vYs
Part2b: youtu.be/lF8OAZ45Pw8

Circuit schematic:
drive.google.com/file/d/1iIQkS-G5pJvnQ-d_lekvK5eHTEm7Y36t/view?usp=sharing

Related links:
e2e.ti.com/support/power-management/f/196/t/233943?Negative-LDO-for-100V-to-90V

Datasheets:
ti.com/lit/ds/symlink/tl431.pdf
ti.com/lit/ds/symlink/tl4051c12.pdf
ti.com/lit/ds/symlink/lm317.pdf
onsemi.com/pub/Collateral/LM317L-D.PDF
eu.mouser.com/datasheet/2/447/yageo_yagos02873-1-1745585.pdf

Special Thanks to all my supporters on Patreon! Especially @afiskon and Ralf B.!

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