mcovingt@athena.cs.uga.edu (Michael A. Covington) (06/20/91)
The voltage regulator in a car is a completely different thing -- it regulates the current energizing the field coils of the alternator, and only indirectly regulates _voltage_. Regulating 20 amps is a tall order. It can be done with lots of transistors in parallel, with small load-balancing resistors in series with each. -- ------------------------------------------------------- Michael A. Covington | Artificial Intelligence Programs The University of Georgia | Athens, GA 30602 U.S.A. -------------------------------------------------------
bcollins@axion.bt.co.uk (Bill Collins) (06/25/91)
In article <1991Jun20.031710.18834@athena.cs.uga.edu>, mcovingt@athena.cs.uga.edu (Michael A. Covington) writes: |> The voltage regulator in a car is a completely different thing -- it |> regulates the current energizing the field coils of the alternator, |> and only indirectly regulates _voltage_. |> |> Regulating 20 amps is a tall order. It can be done with lots of |> transistors in parallel, with small load-balancing resistors in |> series with each. |> I missed the start of this thread, so please excuse me if this does not meet your needs! If you've got the space, and weight is not critical (eg. at home), then use a car battery in a float-charging setup (ie. charger connected across battery connected to load) ... a car battery makes a very good capacitor! This setup may also be cheaper than an expensive regulator :-) Regards, Bill +----------------------------------------------------------+ | Snail Mail : Bill Collins, VV&T Group | | VV&T Group, Software Development Division, | | DAE31, Rm G61, B81, BT Laboratories, | | Martlesham Heath, Ipswich, IP5 7RE, UK | | Phone : +44 473 642760 | | E-mail : bcollins@axion.bt.co.uk | | | | Disclaimer : It's MY foot in MY mouth ! | +----------------------------------------------------------+