The cut-in voltage of each diode in the circuit shown in Figure P2.52 is \(V_{\gamma}=0.7 \mathrm{~V}\). Determine \(I_{D 1}, I_{D 2}, I_{D 3}\), and \(V_{A}\) for

(a) \(R_{3}=14 \mathrm{k} \Omega\), \(R_{4}=24 \mathrm{k} \Omega ;\)

(b) \(R_{3}=3.3 \mathrm{k} \Omega, \quad R_{4}=5.2 \mathrm{k} \Omega ;\) and

(c) \(R_{3}=3.3 \mathrm{k} \Omega\), \(R_{4}=1.32 \mathrm{k} \Omega\).

Transcribed Image Text:

+15 V R = 6.15 D ++ -o Vo VA IDI D3 DS R = 2 Ip3 Ip21 RA R3 -10 V -5 V Figure P2.52