The maximum current, voltage, and power ratings of a power MOSFET are \(4 \mathrm{~A}, 40 \mathrm{~V}\), and \(30 \mathrm{~W}\), respectively.

(a) Sketch and label the safe operating area for this transistor, using linear current and voltage scales.

(b) For the common-source circuit shown in Figure P8.1, determine \(R_{D}\) and sketch the load line that produces a maximum power in the transistor for (i) \(V_{D D}=24 \mathrm{~V}\) and (ii) \(V_{D D}=40 \mathrm{~V}\).

(c) Using the results of part (b), determine the maximum possible drain current for (i) \(V_{D D}=24 \mathrm{~V}\) and (ii) \(V_{D D}=40 \mathrm{~V}\).

Transcribed Image Text:

VGG VDD Figure P8.1 RD vs = Vp sin cot (V) Figure P8.2 Vcc C RB RL