12v regulated toroidal charger high current

Status
Not open for further replies.
Jump to Latest
B

bowdown

Member
Joined 2004
#1
Hi guys i have searched high and low for the last 3 days on this subject. I need a regulated 12-14v power supply at between 150-200 amps. I would like to use a toroidal transformer then regulate the sec outputs somehow. Can some one please be kind enough to show me how to do this. I work for a caraudio shop and we have lots of trouble finding really good big power supplies for our demo cars, so i decided i could build something. please let me know what you guys think.

Cheers

Bowdown
 
#4
Hey thanx bwrx for the link i will read it. Oh by the way does anyone know what the difference between a battery charger is and a power supply?? Cant i just use a toroidal with a 10vac sec and run it thriugh some rectifers and caps to give me 14v? or do i have it totally wrong??


Thanx

Bowdown
 
#5
Do you mean an automotive battery charger? They just charge the batteries to a set voltage over a period of time and aren't designed to supply large amounts of current or respond to transient power demands. A dedicated power supply, on the other hand, should be capable of delivering adequate power under various loading conditions.

Also, about the link. You may want to get in touch with Eva as he is the one who built the power supply in that thread and appeared to be using it for a similar purpose (car audio applications). I didn't read through the whole thing either but the thread title was enough to know that it may be of use to you.
 
#6
Yeah an automotive charger. See the problem is i have 5 battries in the car and they can be disconnected to the power supply/ charger needs to be connected to the battries as well.I got some quotes and they want like $1000 for an 80 amp charger and i really need like 150 amp which means its gonna cost $2000 :bigeyes: .


thanx again for such wanderfull and helpfull people on this forum


regards

Bowdown
 
Status
Not open for further replies.
Top Bottom