where A is a constant evaluated from the initial condition and L/R. At t T/2, S1 and S2 open, and S3 and S4 close. The voltage across the RL load becomes Vdc, and the current has the form
where A is a constant evaluated from the initial condition and L/R.At t T/2, S1 and S2 open, and S3 and S4 close. The voltage across the RL loadbecomes Vdc, and the current has the form