DC-Protect Circuitry

[jpnascim]

Originally posted by d3imlay
Please excuse my ignorance here. I've tried downloading the file

http://files.upl.silentwhisper.net/u...tectLayout.pdf

in both IE and firefox and I get timeout errors from both.

Is it me? I tried every link in this lengthy post, all to no avail.

Happened with me too. I think the website that hosts those schematics deletes them after, say, 30 days.

João Pedro

[Nordic]

DO you tink in theory it might be worthwile looking at using a cheap LM311 voltage comparator IC, set up with a zener as reference voltage, which would trigger a relay when DC voltages hit a specified point.

I use the reverse of this circuit with a zener for model aircraft low voltage alarms...

[AndrewT]

Hi Nordic,
you have just described a DC detect circuit.
All you need to do now is add a window detector using the spare channel of the comparator and preceed it with a filter to only detect DC and very low frequency bass notes but not detect music and/or sound effects.

[RX5]

Hello Fritzell (and others),


im quit interested with this DC protection....

anyone got latest copy of the scheme??? I cant download links...

kindly repost or send to my mail.... thanks




mail: beamrx5 at yahoo dot com

[RX5]

anyone???

[AndrewT]

looks like you'll have to turn on your search switch.

[RX5]

and SEARCH what?? for file/s that are NOT there?

you must be kidding me...


what a senseless reply you got....