I want to design a circuit to drive the Peltier element.
The first option is to drive the peltier with PWM and the other option is to use a sync buck convertor, which is likely adding LC filter to smooth PWM.
My question is, will I have the same efficiency in both cases or it is less in the PWM ?
from : http://www.meerstetter.ch/compendium/pwm-vs-direct-current