Question

What is the current in RL as shown at the point when current just begins to limit (VBE2 = 0.7 V) if R = 15 Ω, R1 = 1 kΩ, and RL = 250 Ω? For what value of υI does the output begin to limit current?

+Vcc ?
R1
Q2
R1.
Figure 15.40 Short-circuit protection for
an emitter follower.

Image Transcription

+Vcc ? R1 Q2 R1. Figure 15.40 Short-circuit protection for an emitter follower.

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