Path: csiph.com!eternal-september.org!feeder.eternal-september.org!nntp.eternal-september.org!.POSTED!not-for-mail From: "Don" Newsgroups: sci.electronics.design Subject: Re: A fully floating BJT-based LED current driver Date: Thu, 9 Apr 2026 22:03:16 -0000 (UTC) Organization: A noiseless patient Spider Lines: 23 Message-ID: <20260409b@crcomp.net> References: <6tltskde2lkpbo4s5g44ujar7b2tttk0k9@4ax.com> <18a493794d041b26$1$2982030$4226dc73@news.newsgroupdirect.com> <20260409a@crcomp.net> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Injection-Date: Thu, 09 Apr 2026 22:03:17 +0000 (UTC) Injection-Info: dont-email.me; posting-host="f9b6f0edf82aae8ff144ffb288b4b976"; logging-data="716669"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19f1dqchAwHfCkiQjpnNeZl" Cancel-Lock: sha1:2w1XACb+Y4yNZvp7kNokjdxF5ds= Xref: csiph.com sci.electronics.design:742865 JM wrote: > On Thu, 9 Apr 2026 09:17:04 -0000 (UTC), "Don" wrote: > >>Allow me to transition this topic to 120 VAC LED COB filaments. This >>picture shows such specimens, with the topmost powered-on and the >>bottommost powered-off: >> >> >> >>The protoboard's black wire connects to 120 ACV Line while its white >>wire connects to Neutral. My goal is to discover the silicon secrets >>in such a simple filament. > > Look up NUD4011 and it's alternatives, it'll be something that > operates in a similar fashion. Thank you. -- 73, Don, KB7RPU veritas _|_ liberabit | https://www.qsl.net/kb7rpu vos |