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Groups > sci.electronics.design > #737010
| Date | 2025-10-19 21:53 -0400 |
|---|---|
| Subject | Re: A vaguely useful circuit |
| Newsgroups | sci.electronics.design |
| References | <68f5773a$1$23$882e4bbb@reader.netnews.com> <v0vafkt7a6btmq2fpd2tui5e4o4v0kqs3m@4ax.com> |
| From | bitrex <user@example.net> |
| Message-ID | <68f59605$0$25$882e4bbb@reader.netnews.com> (permalink) |
On 10/19/2025 8:07 PM, john larkin wrote: > On Sun, 19 Oct 2025 19:41:46 -0400, bitrex <user@example.net> wrote: > >> >> You can sink a current to ground, and split it in two, one copy sinking >>from loads above ground and one copy sourcing to loads below ground. The >> ratio of R3 to R2 controls the split fraction. Or tie the top of R3 to >> ground to make them equal. >> >> I think trying to do something similar with multiple complimentary >> mirrors outside of an IC is inaccurate and kinda ugly.. > > It's not especially accurate. Given a perfect current source to start, > why not connect the load resistors directly to it? > > > John Larkin > Highland Tech Glen Canyon Design Center > Lunatic Fringe Electronics Well then you'd just have a source and not a source and a sink, it's hard to source current into a load referenced to the positive supply..
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A vaguely useful circuit bitrex <user@example.net> - 2025-10-19 19:41 -0400
Re: A vaguely useful circuit john larkin <jl@glen--canyon.com> - 2025-10-19 17:07 -0700
Re: A vaguely useful circuit bitrex <user@example.net> - 2025-10-19 21:53 -0400
Re: A vaguely useful circuit john larkin <jl@glen--canyon.com> - 2025-10-19 21:12 -0700
Re: A vaguely useful circuit bitrex <user@example.net> - 2025-10-20 03:17 -0400
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