M
:: Marcolino ::
- Jan 1, 1970
- 0
Hi, I've a question:
I build a termosensor circuit with termosensor (lm335) and peltier elements
(68W 15V) for cooling my box.
The circuit job is:
- tx > 20°c relais turn on so peltier is on so cool my box
- tx <20°c relais turn off so peltier is off so stop the cooling
regulated with a trigger to avoid micro oscillation of relais.
the problem is after 3 days the circuit go well but my peltier elements
broken... I think than peltier element suffer on/off continuos switch so
have you same ideas to resolve problem?
Thanks
Marco
p.s.
sorry for my english but I'm foreign
I build a termosensor circuit with termosensor (lm335) and peltier elements
(68W 15V) for cooling my box.
The circuit job is:
- tx > 20°c relais turn on so peltier is on so cool my box
- tx <20°c relais turn off so peltier is off so stop the cooling
regulated with a trigger to avoid micro oscillation of relais.
the problem is after 3 days the circuit go well but my peltier elements
broken... I think than peltier element suffer on/off continuos switch so
have you same ideas to resolve problem?
Thanks
Marco
p.s.
sorry for my english but I'm foreign