----- Original Message -----
From: "Lee Hart" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, October 13, 2002 10:44 PM
Subject: Re: Battery Charger
> Richard Furniss wrote:
>
> > I thought the ferroresonant transformer in a Lester charger was for
> > power factor correction, if I raise the AC input voltage by 10v RMS
> > will the DC output voltage not raise accordingly?
>
> No, the ferroresonant transformer is use for voltage regulation. Output
> voltage typically changes less that 2% for a 10% change in input
> voltage. That means changing the input voltage has very little effect on
> output voltage.
>
> Ferroresonant transformer action also has the side effect of improving
> the power factor, but that is not its main purpose.
> --
> Lee A. Hart Ring the bells that still can ring
> 814 8th Ave. N. Forget your perfect offering
> Sartell, MN 56377 USA There is a crack in everything
> leeahart_at_earthlink.net That's how the light gets in - Leonard Cohen
>
Thanks for the clarification, I can see where the ferroresonant
transformer would be great for a charger, so if I understand correctly the
compensating windings that is connected to the four caps primary purpose is
to
compensate or stabilize the input voltage and the PF correction is just a
bonus.
I have been looking for a constant current power supply to equalize the
two different battery packs 36v and 48v, but nothing yet.
Has anybody seen a bench power supply that will fit the need >64v and >6
amps.
www.lasvegasev.com
Richard Furniss
Las Vegas, NV
1986 Mazda EX-7 192v
1981 Lectra Centauri 108v
3 Wheel Trail Master 12v
Board Member, www.lveva.org
Las Vegas Electric Vehicle Association
