Power supplies

Alives · 02-16-2001, 09:59 AM

do you think a 10amp (11 amp surge) @ 13.8v power supply would cover an 8.5 amp @ 15.4V pelt 24/7?

Cablepro · 02-16-2001, 10:29 AM

yes...your power supply would be able to handle the load that the peltier would want to draw (8.5A), but would be providing less voltage...I would ask the manufacturer for the power curve of the peltier, or the equation, and plug in 13.8V, and see how close you are to Qmax

Rich W · 02-17-2001, 08:12 PM

Actually powering a little lower like that will be more efficent...... prolly better

Squishyface · 02-17-2001, 11:52 PM

hrm...equations....power curves...sounds like a math class

Don't you pretty much aim to run your Volts and Amps at 80% of the Vmax and Qmax to get the best efficiency for the peltier? I guess this is roughly true for most pelts.
Shrug...being the anal retentive person that i am, i'll probably get the power curves from tedist when i order my pelt :P hehe...it might be i need to aim for 83%...cackle..wouldn't want to skimp out on those 3%

------------------
1.2Tbird @1352 air cooled. Soon to be watercooled :P

02-16-2001, 09:59 AM	#1
Alives Cooling Savant Join Date: Jan 2001 Location: Columbia, SC Posts: 228	Power supplies do you think a 10amp (11 amp surge) @ 13.8v power supply would cover an 8.5 amp @ 15.4V pelt 24/7?

02-16-2001, 10:29 AM	#2
Cablepro Cooling Neophyte Join Date: Jan 2001 Location: Daytona Beach, FL USA Posts: 93	yes...your power supply would be able to handle the load that the peltier would want to draw (8.5A), but would be providing less voltage...I would ask the manufacturer for the power curve of the peltier, or the equation, and plug in 13.8V, and see how close you are to Qmax

02-17-2001, 08:12 PM	#3
Rich W Cooling Neophyte Join Date: Feb 2000 Posts: 77	Actually powering a little lower like that will be more efficent...... prolly better

02-17-2001, 11:52 PM	#4
Squishyface Cooling Neophyte Join Date: Feb 2001 Location: columbus, Ohio, USA Posts: 54	hrm...equations....power curves...sounds like a math class Don't you pretty much aim to run your Volts and Amps at 80% of the Vmax and Qmax to get the best efficiency for the peltier? I guess this is roughly true for most pelts. Shrug...being the anal retentive person that i am, i'll probably get the power curves from tedist when i order my pelt :P hehe...it might be i need to aim for 83%...cackle..wouldn't want to skimp out on those 3% ------------------ 1.2Tbird @1352 air cooled. Soon to be watercooled :P

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