[sdiy] Fast optical device to replace slow responding LED/LDR combo.. ??

[Mike Bryant]

You could try something like this
https://uk.rs-online.com/web/p/optocouplers/3525467

You'd need to get the LED current in a range where the MOSFETs weren't saturated, and I've no idea how wide a range that is, but it's bi-directional so you wouldn't need the diode bridge.

________________________________
From: Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of Jean-Pierre Desrochers via Synth-diy <synth-diy at synth-diy.org>
Sent: 18 June 2024 15:19
To: synth-diy at synth-diy.org <synth-diy at synth-diy.org>
Subject: [sdiy] Fast optical device to replace slow responding LED/LDR combo.. ??


Is there any device that could replace a slow responding LED/LDR combo ?

I was thinking of this LED/photo transistor/bridge replacement..

The only thing to be carefull about would be the diodes voltage drops,

But using very low current that voltage drop could be very low..

Hmmm..





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