- Q2 A Mosfet Circuit Is Shown In Fig 2a Fig 2 B Is The Characteristic Of The Mosfet 36 Fig 2a Fig 2b A State 1 (18.65 KiB) Viewed 49 times
- Q2 A Mosfet Circuit Is Shown In Fig 2a Fig 2 B Is The Characteristic Of The Mosfet 36 Fig 2a Fig 2b A State 2 (29.03 KiB) Viewed 49 times
- Q2 A Mosfet Circuit Is Shown In Fig 2a Fig 2 B Is The Characteristic Of The Mosfet 36 Fig 2a Fig 2b A State 3 (23.95 KiB) Viewed 49 times
- Q2 A Mosfet Circuit Is Shown In Fig 2a Fig 2 B Is The Characteristic Of The Mosfet 36 Fig 2a Fig 2b A State 4 (19.2 KiB) Viewed 49 times
- Q2 A Mosfet Circuit Is Shown In Fig 2a Fig 2 B Is The Characteristic Of The Mosfet 36 Fig 2a Fig 2b A State 5 (18.9 KiB) Viewed 49 times
Assignment 2 (Total 100 marks) Q1 A photo diode having the characteristic as shown in Fig. 1b is used in the circuit shown in Fig. 1 a. (16%) Fig. 1a (a) Determine the dark current. (b) Calculate the output voltage Vout at illumination of 4 mW/cm2 (c) Calculate the photo diode current Ip at illumination of 1.5 mW/cm2.
Q3 A Zener diode with Zener voltage Vz of 6 V is used in the circuit shown in Fig. 3. Calculate: (a) I5 (4%) (b) LL; (4 \%) (c) I2; and (4%) (d) Power dissipated by the Zener diode. (8\%)
Fig. 4b (a) Find the holding current lH. (b) Given that the supply voltage Vcc is 80 V, the gate trigger current lat is 12 mA, calculate the minimum input voltage Vin required to turn the SCR on. (c) If VAK is 2V when the SCR is turned on, determine the value of Vcc below which the conducting SCR is turned off. (d) Can a conducting SCR be turned off by reducing the gate voltage VG to OV?
The IV characteristic of a SCR is shown in Fig. 4a, and a SCR circuit is shown in Fig. 4b.