Hi,
which is the equivalent circuit of a peltier cell?
Is it a resistive/capacitive/Inductive/more sophisticated model load?
Regards,
A
It's more like a series/parallel combination of diodes and (it think) some series resistance.
Albi142857:
Hi,
which is the equivalent circuit of a peltier cell?
Is it a resistive/capacitive/Inductive/more sophisticated model load?Regards,
A
There isn't really one, its a pyro electric device. Its a transducer between current flow and heat flow.
It crosses the line between electronics and thermodynamics.
This paper describes the development and evaluation of a PSPICE model for a Peltier element. Several other models are available as well.
jremington:
This paper
Interesting, thanks for sharing. In short the Peltier may be modelled as a fixed resistor in series with a voltage source. The voltage of the source is linearly proportional to the temperature difference.
However they considered only "long time" effects - even considerable inductance and/or capacitance of the Peltier would not show in their experiments. It is said Peltier should not be driven with PWM due to greatly reduced efficiency. It is likely a model for behaviour with time resolution in order of milliseconds would look differently.