RE: Re: [Development] Lights functions required

["Keith Doxey" <ukha@xxxxxxx>]

Pissed I think :-)

what would you use as a reference?

The current would only be known at maximum power. How do you decide that
90%
flow is 1 of 10 bulbs blown or lamps running at 90% brightness.

> -----Original Message-----
> From: Dr John Tankard [mailto:john@xxxxxxx]
> Sent: 12 June 2001 22:32
> To: ukha_d@xxxxxxx
> Subject: [ukha_d] Re: [Development] Lights functions required
>
>
> ---
> > Fault detection.
> > Subject to having spare pins available on the PIC you can detect
> > No Output - fuse or relay blown
> > Continuous Output - Triac blown
> > No Load - All lamps disconnected (NOT INDIVIDUAL BULBS unless 1
> bulb per
> > dimmer)
> >
> Just had a idea... but perhap i have had one too many to night...
> Keith we could use a current coil though a anlogue multiplexer into a
> analogue port on the pic. At each shutdown i could measure the
> current in each channel at a low level and compair it, that way i
> could detect a blown bulb even if there are others on the same
> channel. Am i good or am i pissed.
>
> John
>
>
>
>
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