Diodes · Analog Circuits · GATE ECE
Marks 1
In the circuit shown, the n : 1 step-down transformer and the diodes are ideal. The diodes have no voltage drop in forward biased condition. If the input voltage (in Volts) is $V_s(t) = 10 \sin\omega t$ and the average value of load voltage $V_L(t)$ (in Volts) is $\frac{2.5}{\pi}$, the value of n is _____.
As shown in the circuit, the initial voltage across the capacitor is 10 V, with the switch being open. The switch is then closed at $t = 0$. The total energy dissipated in the ideal Zener diode $(V_Z = 5 ext{ V})$ after the switch is closed (in mJ, rounded off to three decimal places) is _________.
The magnitude of the current i2 (in mA) is equal to __________.
(1) less expensive transformer
(2) smaller size transformer, and
(3) suitability for higher voltage application.
Of these,Marks 2
In the circuit shown below, D$$_1$$ and D$$_2$$ are silicon diodes with cut-in voltage of 0.7 V. $$\mathrm{V_{IN}}$$ and $$\mathrm{V_{OUT}}$$ are input and output voltages in volts. The transfer characteristic is
A circuit and the characteristics of the diode (D) in it are shown. The ratio of the minimum to the maximum small signal voltage gain $${{\partial {V_{out}}} \over {\partial {V_{in}}}}$$ is __________ (rounded off to two decimal places).
The value of the ripple u (in volts) is ______________.
The ac output voltage vac is
The bias current IDC through the diodes is