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Old 13 April 2020, 11:53   #20
grond
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Join Date: Jun 2015
Location: Germany
Posts: 818
Quote:
Originally Posted by Mathesar View Post
Ripple current is more of an issue on the input side of a switched dc/dc converter. A buck converter with a small input cap and a low impedance path to tbe power source will draw a lot of ripple current and emit a ton of interference if not dealt with properly.

That's probably why according to the discussion on a1k.org Jens will use an ordinary 3rd party converter for this critical input stage to generate an intermediate DC voltage and only generate the 5V/12V/-12V from that intermediate DC voltage using his own circuitry.
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