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RE: Re: Re: White LED Lighting... was RE: Re: ADSL vs Cable
- To: ukha_d@xxxxxxx
- Subject: RE: Re: Re: White LED Lighting... was RE: Re: ADSL
vs Cable
- From: steve.cooper@xxxxxxx
- Date: Thu, 25 Apr 2002 12:29:00 +0100
- Mailing-list: list ukha_d@xxxxxxx; contact
ukha_d-owner@xxxxxxx
- Reply-to: ukha_d@xxxxxxx
Ian
Talking of opto-isolated relay board. Have you had chance to start
looking
at the design and work out the approx. cost yet?
S.
"i.bird@tesco
.net"
<Ian
To: "ukha_d@xxxxxxx"
<ukha_d@xxxxxxx>
Sent
by:
cc:
"i.bird@tesco
Subject: RE: Re: Re: White LED Lighting... was RE:
[ukha_d] Re: ADSL vs Cable
.net"
<i.bird
25/04/02
12:14
Please
respond
to
ukha_d
> Andy (going to do some garden lighting too)
If you do and plan to relay control it from something computer related
be
aware of back emf and its effect on the control circuit. Opto-isolate
if
poss or add shunt diodes or whatever they are called. Saves you
resetting
HV every night (as happened to me) or worse.
Ian (never afraid to blow something up through ignorance)
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