Re: Re: Re: White LED Lighting... was RE: Re: ADSL vs Cable

[Steve B <steve@xxxxxxx>]

After two of these chips  frying themselves after a few days use. The
second one caused additional damage.

I emailed an old colleague of mine who is an electronic design engineer and
immediately from experience suggested i added diodes as they had found the
internal ones inadequate in product designs.

I added diodes and 12 months later the kit is functioning fine.

For the sake of a few pence.......... Dont take the risk.


At 21:13 25/04/2002 +0100, you wrote:
>Thats not a very helpfull reply Steve, why?
>
>Alancc
>----- Original Message -----
>From: Steve B <steve@xxxxxxx>
>To: <ukha_d@xxxxxxx>
>Sent: Thursday, April 25, 2002 8:46 PM
>Subject: Re: Re: Re: White LED Lighting... was RE: [ukha_d] Re: ADSL
vs
>Cable
>
>
> > Do not rely on the internal diodes
> >
> > At 18:16 25/04/2002 +0100, you wrote:
> > >Homevision has the diodes already built in the ULN2803A chip,
have a look
>at
> > >page 106 in the HV bible.
> > >
> > >Alancc
> > >
> >
>
>
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