Hi,

I mentioned TLP250 for the gate drivers. They have an optically isolated input and a totem pole output. It works great with IGBTs too. While your DC input is 48 volts be carefull about choosing the MOSFETs . Generally MOSFETs with greater breakover voltage have higher RdsOn. While it may seem logical to use a 100volts MOSFETs for the design. Please note that hard turn off of the MOSFETs connected to inductive load causes ringing in the drain as well as gate. So surges may kill them. Snubbers are recommended and fully avalanche rated MOSFETs should be used. If you keep your PWM frequency lower that will result in lower switching losses however may produce audible noise.

Best of luck in your design.