2. The circuit in figure 2 is frequently used to provide an output voltage vo proportional to an input signal ii. Derive expressions for the transresistance Rin=vo/ii and the input resistance Ri=vi/ii for the following cases. a) A is infinite. b) A is finite. R₂ www Vi A -OV Figure 2.

Draw the output on top of the input waveforms for the circuits below. For all circuits in this question, assume that +Vout(max)= +10V and -Vout(max)= -10V .

Write the loop equations for a Buck converter in the two modes if the inductance is characterized by a combination of inductance L1 in series with an equivalent resistance r1, filter capacitance is characterized by a capacitor C1 in series with resistance r2. Also assume that the controlled switch has a drop of 0.4V and the freewheeling diode has a voltage drop of 0.65v. Draw the corresponding equivalent circuits in each mode.

In the common mode, ..... ..... ..... Select one: a. the output signal are in-phase b. an identical signal appears on both the inputs c. the outputs are connected together d. both inputs are grounded

a. b. C. There is a dc-dc converter that provides isolation between input and output current. Identify the converter type and describe the operation. Draw the equivalent circuit to support the explanation. Assume the converter operates in continuous-current mode. Explain why a switched -mode dc-dc converter is better that a linear regulator. As an electrical engineer, you are required to design a chopper circuit with an output voltage of 10 V from a 30 V input with switching frequency of 50 kHz. The circuit is operated in continuous current, and output ripple voltage is less than 0.8% with resistance load of 30 Q. Assume the inductor value is 50 % larger than Lmin and assume ideal components for this design. Identify the chopper type and construct the circuit with IGBT as the power switching.

The inductor current of a buck-boost converter is shown in the figure. The minimum inductor current is zero and the peak value is 5A. The load resistor 5 A value is equal to R=702 Assume that the output voltage ripple is 1%. All components are ideal. Determine. a) Duty ratio. b) Output voltage. c) Input voltage d) Inductor value e) Capacitor value. 12μ 20μ 32μ 40μ t,sec

A step down converter has a load resistance R-0.50hms. an input voltage Vs-200V and a battery voltage E-20V. The average load current la=250A and the converter frequency is 400 Hz. The value of the inductance L that would limit the maximum load ripple current to 5% of la, would be equal to: Select one: O a. 9 mH O b. None of these O c. 26 mH O d. 15 mH

i need the answer quickly

The circuit shown in the following in figure has: VIN= 10 V, Vz = 7.2 V@ Iz-40 mA, Izk =2 mA, IzM= 100 mA and Zz-5 2. Determine a) Maximum output voltage. b) Minimum output voltage. c) The percentage load regulation. d) The minimum permissible load resistor value. c) The maximum permissible load resistor value. R 2211 VIS

1- Mention any two advantages of Integrated Circuit . 2- For the circuit given below : Vin is a sine wave Vinpp=6 V and Vref=-2.4 V , Assume Vsat=±12V Name the circuit and draw the input and output waveforms . Vin Vref 3- Explain why open-loop op-amp configurations are not used in linear applications? Draw the block diagram of opamp and define the function of each block