Peltier PWM Filtering problem



Hi everyone!

I need to control a Peltier module (TEC1-12709) in heating and cooling mode. Browsing similar topic i decided to control the Peltier with a LC filtered 50kHz PWM signal with an H bridge configuration. I simulated the prototype in LTSpice (the project is attached).

- The H bridge will be modified into a 4-NMOS configuration with proper gate driver, the one in the schematics is just for simulation...

Peltier PWM Filtering problem