$ 0 0 Hello Ankan,Thanks for the reply.Peltier is connected after L1 and L2. I am using IRF9540 (P channel), P30NF10 (N channel) mosfets.1. Waveform before L12. Waveform before L23. Waveform after L14. Waveform after L25. Waveform between L1 and L2