EXERCISE PROBLEM Ex 4.4: Consider the circuit shown in Figure 4.14. Assume transistor parameters of VTN = 0.8 V, K=0.20 mA/V2, and λ = 0. Let VDD = 5 V, R; = R₁|| R₂ = 200 ks, and Rsi = 0. Design the circuit such that IDQ = 0.5 mA and the Q-point is in the center of the saturation region. Find the small-signal voltage gain. (Ans. Rp 2.76 ks, R₁ = 420 ks, R₂ = 382 ks, A₁ = -1.75) VDD www Rsi CCI ww HH ww Rp R₂

quick please

A clipper circuit based on diodes are simple way to modify waveform in mechatronics. Assume that the two diodes shown in the circuit below are ideal diodes. If the input voltage in the circuit is a 1 kHz sinusoid with peak amplitude of 8V, sketch the Va.. (t) 10 kO 8V 10 kO Vin Vin(t) D2 Vout(t) RL Ims D1 6V -8V 4V Page | 1

Draw and solve

A resistor & a capacitor are connected in series across 230V, ac supply. The current taken by the circuit is 4 A for 50 Hz frequency. The current is reduced to 2 A, when the frequency of supply is decreased to 40 Hz. Determine the value of resistor & the capacitor.

The step up chopper has R=20 ohm and out put voltage is 120V. The source voltage is 40V DC . The load inductance is 0.2mH. If the chopper frequency is 4KHZ find1- the duty cycle2- the average value of source current3- TON4- Imax5- Imin6-The average value of diode current

For residential water heaters, the Consumer Product Safety Commission suggests a maximum temperature setting of ___________ F (_____________ C). Some states have laws stating a maximum temperature setting of ____________ F (________________ C).

2. A certain zener diode has a maximum power rating of 300 mW at 40 deg Cand a derating factor of 1.4mW/deg C. Determine the maximum power the zener can dissipate at a temperature of 80 deg C. 3. From the datasheet, a 1N4728A zener diode has a ZZ of 10 0. The datasheet gives VZ = 3.3 V at a test current, IZ, of 76 mA. What is the voltage across the zener terminals when the current is 90 mA? When the current is 45 mA?

A three-phase rectifier is supplied by a 173.2-V rms line-to-line 60-Hz source. The RL load is a 100 resistor in series with a 15-mH inductor. Determine THD taking Is1 = 1.35

Calulate the Condurtwity of pure filiain at when the cCencentratron temperature Cormes is a room 1-6x10" Volt fe ad per Cm3 Take Ue=l1500 cm? per pvolt-Jee at =500 cm tempuature.