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Monday Quiz: Test your knowledge of power MOSFETs

21 Dec 2015  | Martin Rowe

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2. The layered structure of a MOSFET forms a parasitic NPN bipolar junction transistor (BJT). Which problem or problems are created should the BJT turn on and saturate?

a. The BJT would latchup and the MOSFET cannot be turned off except by externally interrupting the drain current.

b. The MOSFET's RDS(ON) goes to zero Ohms.

c. The MOSFET will oscillate.

d. The MOSFET's breakdown voltage will increase.

e. The MOSFET can be destroyed as a result of high power dissipation.

f. a and c only

g. b and d only

h. a and e only

Power MOSFET

3. Which of the following are generally unaffected by temperature?

a. Power dissipation

b. Maximum drain current

c. Turn-on switching loss

d. Reverse recovery current

e. Switching speed

f. a and c only

g. b and d only

h. c and d only

Power MOSFET


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