Switching mosfets in boost rectifier using Simulink

I am simulating a full bridge (four switch) boost converter in Simulink. The gate of each mosfet is connected to a logic block (outputs of 0 or 1), and I've put in basic parameters for each mosfet (such as 0.1 ohms for "Rds on").

When running the simulation, I notice that the mosfets do not conduct when their gate voltages are set to a "1". Using the scope block, I see that the drain-source voltage across each mosfet does not approach 0 when the gate voltage is 1, so I suspect that the mosfet is not acting as a "closed switch".

Is there some kind of gate driver component, or something that I'm missing, to switch mosfets in a PWM-type fashion?

Answer 1

[Sabin]

We don't know what block and what technology is used. My guess is that the threshold voltage is greather than 1 and therefore the MOSFET is not actually switching when gate signal is 1. If that's the case, the threshold voltage can be set to 0.5 or the gate input needs to be scaled accordingly.