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Article #15985

Re: solid-state automobile regulator for high-amperage power supply?

#15985
From: Bill Collins
Date: Tue, 25 Jun 1991 15:32
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2083 bytes
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                     |
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!mcsun!ukc!axion!bcollins
References: <abeals.677354154@melange> <1991Jun20.031710.18834@athena.cs.uga.edu>

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!mcsun!ukc!axion!bcollins
From: bcollins@axion.bt.co.uk (Bill Collins)
Newsgroups: sci.electronics
Subject: Re: solid-state automobile regulator for high-amperage power supply?
Keywords: 13.8V
Message-ID: <1991Jun25.163215@axion.bt.co.uk>
Date: 25 Jun 91 15:32:15 GMT
References: <abeals.677354154@melange> <1991Jun20.031710.18834@athena.cs.uga.edu>
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Reply-To: bcollins@axion.bt.co.uk (Bill Collins)
Organization: British Telecom Research Labs
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