Explanation: Use the relation α = β/(β+1). 2. The power electronics devices have a very high efficiency because
A. cooling is very efficient
B. the devices traverse active region at high speed & stays at the two states, on and off
C. the devices never operate in active region
D. the devices always operate in the active region
Answer:A
Explanation: Use the relation α = β/(β+1). 2. The power electronics devices have a very high efficiency because
A. cooling is very efficient B. the devices traverse active region at high speed & stays at the two states, on and off C. the devices never operate in active region D. the devices always operate in the active region
Explanation: They are efficient due to their higher transition speeds. 3. For a power transistor, which of the following relations is true?