Electronics Design

IR detector system, biasing of photo diode

Hi I am working on an IR detector that will guide a robot into a docking station. A IR transmitter on the docking stati...

73 comments posted 1yr

posted by klauskvik

73 comments posted 1yr posted by klauskvik

Re: OT: Linix goes politics

On Fri, 25 Oct 2024 04:12:41 GMT, Jan Panteltje snipped-for-privacy@comet.invalid wrote: >Removal of Russian coders spu...

13 comments posted 1yr

posted by JL

13 comments posted 1yr posted by JL

Re: ultra small spectrometer yields the power of a 1000 times bigger device

> Ultra-small spectrometer yields the power of a 1,000 times bigger device > The tiny, relatively inexpensive devices c...

6 comments posted 1yr

posted by newspam'''

6 comments posted 1yr posted by newspam'''

Re: OT: America could go bankrupt : Musk

> America could go bankrupt – Musk > From: > https://www.rt.com/news/606373-musk-us-bankruptcy-debt/> > As rt.com may b...

21 comments posted 1yr

posted by bill.sloman

21 comments posted 1yr posted by bill.sloman

Re: OT: ARM makes too much noise in my view.

On Thu, 24 Oct 2024 04:36:03 GMT, Jan Panteltje snipped-for-privacy@comet.invalid wrote: >Report: Arm cancels Qualcommâ...

3 comments posted 1yr

posted by JL

3 comments posted 1yr posted by JL

IR remote control

Hello, I am trying to make a decoder for IR remote control. I have found many sites on the internet with a loto of info...

1 comments posted 1yr

posted by l_umbe

1 comments posted 1yr posted by l_umbe

Re: OT: Dino robots?

> > > Really?  You actually think you can build an animatronic mechanism > that more accurately models an extinct creat...

0 comments posted 1yr

posted by bill.sloman

0 comments posted 1yr posted by bill.sloman

squeezing a field

I'm designing a small PCB with essentially 5 sync buck switching regulators. Board space is tight so I want to put the...

41 comments posted 1yr

posted by jl

41 comments posted 1yr posted by jl

Cheaper alternative to IRLML2060

I've been looking for some time for a jelly bean MOSFET with these specs: Id(max) ~1A Vds >/= 30V Rds(on)

17 comments posted 1yr

posted by Pimpom

17 comments posted 1yr posted by Pimpom

High purity 1kHz oscillator

But I suspect that component tolerances and mismatched FETs will ruin it. Otherwise it should be easy to get 60dB down...

36 comments posted 1yr

posted by invalid

36 comments posted 1yr posted by invalid

Re: OT: Charging cable review

> "I’ve noticed with other cables my phone would get hot when charging and > eventually the battery life of my device w...

0 comments posted 1yr

posted by usenet

0 comments posted 1yr posted by usenet

Interview Question (your Sunday ruined part 2)

John Larkin has from time to time posted some elementary questions he likes to torture his job applicants with. I'd lik...

91 comments posted 1yr

posted by cd999666

91 comments posted 1yr posted by cd999666

The Wien Bridge Oscillator problem (your Sunday ruined part1)

Gentlemen, How critical is the choice of thermistor for a WB oscillator? Stability is desired; we know that much (along...

3 comments posted 1yr

posted by cd999666

3 comments posted 1yr posted by cd999666

AF Osc AGC alternatives to lamp/thermistor/FET

Yesterday in the thread "Random thoughts on sinewave oscillators" I posted a LT Spice wirelist showing amplitude levell...

19 comments posted 1yr

posted by erichpwagner

19 comments posted 1yr posted by erichpwagner

Are you guys aware of this ticking time bomb?

https://fincen.gov/boi That is what our democRATic friends prepared for us... I learned about it totally by accident. W...

12 comments posted 1yr

posted by ksi

12 comments posted 1yr posted by ksi