The transistor in the circuit in Figure P3.51 is used to turn the LED on and off. The transistor parameters are \(V_{T N}=0.6 \mathrm{~V}, k_{n}^{\prime}=80 \mu \mathrm{A} / \mathrm{V}^{2}\), and \(\lambda=0\). The diode cut-in voltage is \(V_{\gamma}=1.6 \mathrm{~V}\). Design \(R_{D}\) and the transistor widthto-length ratio such that \(I_{D}=12 \mathrm{~mA}\) for \(V_{I}=5 \mathrm{~V}\) and \(V_{D S}=0.15 \mathrm{~V}\).

Transcribed Image Text:

+5 V Figure P3.51 RD Light output