[Diy_efi] DIY-WBO2 circuit improvement suggestion (Greg Hermann)

[md4etal]

piezoelectric effect???


----- Original Message -----
From: "Chad Clendening" <clendenc at execpc.com>
To: <diy_efi at diy-efi.org>
Sent: Wednesday, June 19, 2002 5:24 PM
Subject: [Diy_efi] DIY-WBO2 circuit improvement suggestion (Greg Hermann)


>
> I PWM'ed a UEGO heater once, the thing started making noise.
> Noise = vibration, I figured ceramic and vibration probably don't mix.
>
>
>
> Chad
>
>
>
>
>
>
> > Message: 6
> > Date: Wed, 19 Jun 2002 07:26:40 -0700
> > To: diy_efi at diy-efi.org
> > From: bearbvd at mindspring.com (Greg Hermann)
> > Subject: Re: [Diy_efi] DIY-WBO2 circuit improvement suggestion
> > Reply-To: diy_efi at diy-efi.org
> >
> >  The 24v could then be dropped and
> > >regulated and smoothed/"un-noised" to whatever the heater requires. May
not
> > >be very power-efficient, and might not be the cheapest (you could
design
> > >your own convertor for example), but it'd be "simple", "brutal", but
> > >"effective". doh - sounding like a Land-Rover again! ;-)
> >
> > I didn't realize that step-up converters had axles of the same
consistency
> > as used Tootsie Roll !
> >
> > :-)
> >
> > Greg
> > >
> > >Marko
> >
>
>
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>


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