Alt-BEAM Archive

Message #13371



To: 'BEAM list'
From: owner-beam@sgiblab.sgi.com [mailto:owner-beam@sgiblab.sgi.com]On
Date: Wed, 12 Apr 2000 08:09:13 -0700
Subject: Photodiode use in BEAM circuits




Can someone explain, or point me towards an explanation of, why in
photovore circuits the photodiodes are connected anode-anode (via
centralising pot)? But in BEAMAnt circuits, the photodiodes are connected
cathode-cathode.

I am assuming it has something to do with the resistance properties under
normal and reverse bias, but exactly what that is I don't know.

Secondly, can the photodiodes be swapped for Light Dependant Resistors in
either application?

Still a bit to learn yet!

Many thanks

Duncan


Home