1. This circuit has two ideal OPAMs. Find Vout as a function of the signal Vsi. Since the OPAMs are ideal and cascaded, you can first find the output at node A and take this value as input to the second amplifier. Note: a) You do not need to know the value of R; b) note that you have two configurations of non-inverter and inverter, so you can use the known formulas for each configuration. 4R ww 8 w A - Vout 28 VS1

Consider a digital logic circuit with two diodes as shownin figure 1. The diodes D1 and D2 are ideal (i.e. Vy = 0). 12 D ov, out 10 D2 5V 50kO Figure 1 A digital logic circuit with two ideal diodes A. Complete the equivalent circuit below and determine the output voltage vout oV and v, = 5V. Verify the conduction states of diodes by finding the current through D, and the voltage across D, when vị = Note that the output voltage is the same when v, = 5V and v, = 0V. 12 D out 12 D2 5V 50k2 Complete the equivalent circuit below and determine the output voltage vout when vị = v2 = В. 5V. 1Ω D Qut 10 5V 50k2 B.

The transistor inverter circuit shown in the figure is desired to be designed so that the Ic saturation current is 8mA. Find the Rb and Rc resistances so that the IB current is 120% of the max IB current. (Note: Max IB current is at saturation Ic.)

Design and simulate a power supply that is able to take 120 Vrms input signal and deliver a nominal 5VDC output at 25mA with ~1% ripple at the rectifier.