SAMPLED-DATA SIMULATION OF CIRCUITS WITH INTERNALLY CONTROLLED SWITCHES - Computer Methods for Analysis of Mixed-Mode Switching Circuits - page 182

Since The voltage regulator is also known as step-down

chopper.

For a detailed analysis of the operation of the regulator, we examine
the operation of the regulator in the following four different time regions:

i) The MOSFET switch is ON.

ii) The MOSFET switch is turning OFF.

iii) The MOSFET switch is OFF.

iv) The MOSFET switch is turning ON.

The regulator exhibits distinct characteristics in these four different
regions.

Assume during the clock phase The schematic

of the voltage regulator when is shown in Fig.8.6. Reset the

time origin from to The circuit at is depicted

by