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: CoB LED filament analysis Date: Wed, 22 Apr 2026 18:43:39 -0000 (UTC) Organization: A noiseless patient Spider Lines: 25 Message-ID: <20260422e@crcomp.net> References: <20260411a@crcomp.net> <20260421a@crcomp.net> <2mqhuk9stmli0ql43nkg8tl62r14cj2eq3@4ax.com> <20260422a@crcomp.net> <20260422b@crcomp.net> <20260422d@crcomp.net> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Injection-Date: Wed, 22 Apr 2026 18:43:40 +0000 (UTC) Injection-Info: dont-email.me; posting-host="c7b8b181bc4b6a506454a32ce9f69a73"; logging-data="2609368"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18IyzTkqpoUYmQFXndCvcae" Cancel-Lock: sha1:DlnMEthip/RKl0EZNQBRLZXJ3IY= Xref: csiph.com sci.electronics.design:743252 john larkin wrote: Don wrote: >>What did >>you expect a current curve to reveal about a device that draws mA >>from 320 ACVp-p? > > What's inside? Fair enough. Given a rock solid resitive load with a phase shift of zero, then there's something wrong with the phase shown by the current probe. It's my hunch that the waveform itself shows something useful. I'll repeat the experiment with a 100 ohm current sense series resister in case something was overlooked the first time. Danke, -- 73, Don, WD7Q veritas _|_ liberabit | https://www.qsl.net/wd7q vos |