temperature feedback

From: Joerg Hansmann (info_at_jhansmann.de)
Date: 2002-03-26 15:40:26

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Hi all,

here (in the attachment) is a (LTspice-simulated) circuit for temperature
feedback.
Does anyone know where to get very small NTC resistors ?
(e.g. with B about 3940K, R_25=22k)
The one I have bought has disk shape with diameter=4mm and depth=2mm
and is fairly slow.

BTW:
The "modEEGamp1_15c_std.brd" is built now.
Next thing to do is performance testing.

Regards,

Joerg

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