Anyone know max voltage for Die4Chill

[catalanjo]

. I need to know if it's OK to wire two (3,7v-3amp) peltiers in series and run them thru one Die4Chill using a 12 or 9vdc supply ?

or ... just what exactly is the max voltage/current, a Die4Chill can manage, without the magic smoke escaping from it's electrickery ?


Cheers

[catalanjo]

Lack of broadband sometimes causes strange things to happen.

[buffo]

If they pull 3 amps and you run them in series off a 12 volt supply, you'll be generating ~ 13 watts of resistive heat at the die4chill board. So long as the output transistor has a heat sink on it you should be fine.

Adam

[catalanjo]

Thanks Adam... I could be wrong! .... but I don't think that Die4Chill works quite like that !

The IRF7805ZPbFs on this card, are a "switching" high power Mosfets in a SO-8 (surface mount) package so heatsink is not really an option!

Die4Chill is not like an LD driver, it works by switching a pulsed output from an inductance oscillator circuit!

So linear power transistor V x A = W calculation is not really applicable !

Board indicates 12vdc and max I = 8amps .... but I think this might be a little misleading !

Hence the info request to members with practical experience with this card !

Cheers

[jors]

I have no experience with Die4Chill but this Japanese TEC controller works incredibly well and does not need heatsink.
just my two cents
http://www.tslab.com/english/sPLC10/sPLC10_intro.html
cheers

[catalanjo]

Gracias, Jordi .. but have D4Cs in stock and they seem to have similar spec, although a bit "thicker"!
BTW ... had a look at their web page but can't see how they work... they say PWM but I can't see any inductor!
Cheers
PS...Tienes alguna placa media onda para 638nm que te sobra y me podrias vender?

[dave]

That should be fine, as long as you set the die4chill to less than the TEC max rated current, you should be fine.. The Die4chill is similar to a constant current diode driver in that you set the current, and the volts look after themselves

[jors]

Gracias, Jordi .. but have D4Cs in stock and they seem to have similar spec, although a bit "thicker"!
BTW ... had a look at their web page but can't see how they work... they say PWM but I can't see any inductor!
Cheers
PS...Tienes alguna placa media onda para 638nm que te sobra y me podrias vender?

Yes, no inductor...it also surprised me, but anyway seems to work pretty well. Sorry, I have waveplate for 520 & 445 and some cubes, not 638. well, have one 638 waveplate but its glued on pbs...I glued it but then had to change design, so its a cube+pbs glued on a mount

[dave]

Yes, no inductor...it also surprised me, but anyway seems to work pretty well.

It wont be so kind to your TEC's if no inductor is used.

[catalanjo]

...... well, have one 638 waveplate but its glued on pbs...I glued it but then had to change design, so its a cube+pbs glued on a mount

Excelente!
Cuanto quieres por el bulto entero, mas envio a Blanes
Cheers

Could also exchange new PBS and mount (different types available) instead of just pasta!