Determine the current through the diode, when the switch is in position 1, 2& 3. Assuming op-amps initially nulled.
A. Io (LED) =4.01mA; Io (Zener) =4.01mA; Io (rectifier) =8.33mA.
B. Io (LED) =25mA; Io (Zener) =4.01mA; Io (rectifier) =4.01mA.
C. Io (LED) =16.67mA; Io (Zener) =16.66mA; Io (rectifier) =4.01mA.
D. Io (LED. =8.33mA; Io (Zener) =8.33mA; Io (rectifier) =8.33mA.
Answer:A
Determine the current through the diode, when the switch is in position 1, 2& 3. Assuming op-amps initially nulled.
A. Io (LED) =4.01mA; Io (Zener) =4.01mA; Io (rectifier) =8.33mA. B. Io (LED) =25mA; Io (Zener) =4.01mA; Io (rectifier) =4.01mA. C. Io (LED) =16.67mA; Io (Zener) =16.66mA; Io (rectifier) =4.01mA. D. Io (LED. =8.33mA; Io (Zener) =8.33mA; Io (rectifier) =8.33mA.
Explanation: All the diodes are connected one after another in the feedback path. Therefore, current through the diode remains same. Io =Vin/R1 =1.5/180 =8.33mA. 3. A diode match finder circuit has input voltage of 2.6v and output voltage is 5.78v. Calculate the voltage drop across diode 1N4735