What types of power semiconductors are used in power management subsystems?
Power management subsystems can use either switching or linear techniques. Switching circuits only have two states, on or off, whereas analog circuits can have an infinite number of states that lie anywhere from on to off. A good mechanical analogy is that a thermostat is digital because it is either on or off. However, a thermometer is analog because it can have an infinite range of values from its high to low temperature. Power management subsystems employ linear and switching techniques.
