| Electronics > Projects, Designs, and Technical Stuff |
| Extreme Brutal and Simply Bench Power Supply Project /Statron/ |
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| 001:
Hi! Very detalised project here https://www-user.tu-chemnitz.de/~heha/basteln/Konsumg%C3%BCter/Statron/ Any opinions? |
| Wolfgang:
This is how I made my first power supplies some decades ago. Stability was everything, ensured by a "fat" output capacitor creating a dominant loop pole so low that any other time constants had no choice to make it unstable. A side effect was a sort of "electronic Widlarization", especially for the higher voltage versions. If a test circuit misbehaved and decided to go low-ohmic for whatever reason, the output cap would just dump a few or even a few ten Joules into it, causing the culprit to enter the eternal electronic hunting grounds immediately. Smaller circuit would even evaporate leaving a clueless operator behind. Happened once with a 400V supply. |
| 001:
--- Quote from: Wolfgang on November 21, 2018, 12:54:13 am ---This is how I made my first power supplies some decades ago. Stability was everything, ensured by a "fat" output capacitor creating a dominant loop pole so low that any other time constants had no choice to make it unstable. A side effect was a sort of "electronic Widlarization", especially for the higher voltage versions. If a test circuit misbehaved and decided to go low-ohmic for whatever reason, the output cap would just dump a few or even a few ten Joules into it, causing the culprit to enter the eternal electronic hunting grounds immediately. Smaller circuit would even evaporate leaving a clueless operator behind. Happened once with a 400V supply. --- End quote --- Great answer! But sorry for my english. What "electronic hunting" means? :-// You say "cap would just dump a few or even a few ten Joules into it" No way to limit current isnt`it? |
| MK14:
--- Quote from: 001 on November 21, 2018, 08:08:44 am ---Great answer! But sorry for my english. What "electronic hunting" means? :-// --- End quote --- They (seem to) mean that the component is killed/destroyed, damaged beyond further use. Analogous to hunting/killing animals in a hunting ground. By the excessive current/energy. |
| mfro:
--- Quote from: MK14 on November 21, 2018, 08:22:49 am --- --- Quote from: 001 on November 21, 2018, 08:08:44 am ---Great answer! But sorry for my english. What "electronic hunting" means? :-// --- End quote --- They (seem to) mean that the component is killed/destroyed, damaged beyond further use. Analogous to hunting/killing animals in a hunting ground. By the excessive current/energy. --- End quote --- A German phrase that probably does not translate well if you did not read Karl May's Winnetou as a child. When native Indians died there, they went to the "happy hunting grounds". |
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