A power MOSFET is specified to have IDmax = 5 A, VDSmax = 50 V, and PDmax = 50 W. (a)
Chapter 12, Problem 12.64(choose chapter or problem)
A power MOSFET is specified to have IDmax = 5 A, VDSmax = 50 V, and PDmax = 50 W. (a) Sketch the SOA boundaries. (b) If the MOSFET is used in the common-source configuration as shown in Fig. P12.64, show that the maximum current occurs when VDS = 0, the maximum VDS occurs when ID = 0, and the maximum power dissipation occurs when VDS = VDD/2. (c) For VDD = 40 V, find the smallest resistance R for which the operating point is always within the SOA. What are the corresponding values of IDmax and PDmax? (d) Repeat (c) for VDD = 30 V. (e) Repeat (c) for VDD = 15 V. R VDD VGS ID VGS Figure P12.64 D
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