Note that your house is fed by a transformer from the utility.  That
transformer won't allow any DC to accumulate on the power lines.  You
may provide an asymetrical load to the generator, but other appliances
in you house in parallel with the rectified ligh bulb will not know the
difference.  In theory you electric meter could detect the difference,
but I doubt it cares.

Sherpa Doug

> -----Original Message-----
> From: Bob Ammerman [mailto:RAMMERMAN@PRODIGY.NET]
> Sent: Monday, July 02, 2001 7:06 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [EE]: Bulb Life (x:Modulating headlight)
>
>
> An 'off-line' switcher (like in a computer), which is driven
> directly off
> the AC line will still have a higher frequency transformer in
> it, and will
> almost always contain a full wave rectifier on the incoming
> A/C power. This
> removes any DC component from the load the switcher presents
> to the house
> mains.
>
> Bob Ammerman
> RAm Systems
> (contract development of high performance, high function, low-level
> software)
>
> ----- Original Message -----
> From: "Dale Botkin" <dale@BOTKIN.ORG>
> To: <PICLIST@MITVMA.MIT.EDU>
> Sent: Monday, July 02, 2001 6:58 PM
> Subject: Re: [EE]: Bulb Life (x:Modulating headlight)
>
>
> > One does...  the other is a switcher.
> >
> > On Mon, 2 Jul 2001, Michael C. Reid wrote:
> >
> > > your bench power supply has this thing called a transformer that
> isolates it
> > > from the main power input!
> > >
> > > -----Original Message-----
> > > From: pic microcontroller discussion list
> > > [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Dale Botkin
> > > Sent: Monday, July 02, 2001 4:43 PM
> > > To: PICLIST@MITVMA.MIT.EDU
> > > Subject: Re: [EE]: Bulb Life (x:Modulating headlight)
> > >
> > >
> > > On Mon, 2 Jul 2001, Michael C. Reid wrote:
> > >
> > > > Regarding those small disc shaped devices, I understood
> that some
> brands
> > > > were diodes, dropping the voltage in half to save on
> bulb life, if you
> > > like
> > > > the idea of DC being introduced into the power grid of
> your home.
> > >
> > > Ummm...  no more than my bench power supply does.
> > >
> > > Dale
> > > --
> > > A train stops at a train station.  A bus stops at a bus station.
> > > On my desk I have a workstation...
> > >
> > > --
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> > On my desk I have a workstation...
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