Postlab 4 Report

= 5v1 – 2v2. Design the operational amplifier circuit so that vout = Operational amplifier circuit v1 20 k2 Vout v2

Q) Figure below amplifier .given the input wave FOrm Shows a Comperator Circuit Vs using 6 sin wt Volt. the output OPerational Sketch and label the input Voltage Vs and wave Forms Voi and Vo1 12 V tov -10V Vs - lov Vos -tov

Determine the required values of R1, R2, Rc, and RE. Also, determine the expected output voltage if the input voltage is equal to 0.001 Vrms. GIVEN: Zi = 1145.66 ohms Zo = 3.3 Kohms Beta = 80 Vcc = 20V R1 + R2 = 43.7 Kohms Av = 167.43 Ai = 58.13

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1. The input signal in Figure 1(a) is applied to the comparator in Figure 1(b).Draw the output showing its proper relationship to the input signal. Assume the maximum output levels of the comparator are (+/-)12 V. Values of R₁ and R₂ are as follows. (a) R₁ = 8 K Ohm, R₂ = 12 K Ohm (b) R₁ = 12 K Ohm, R₂ = 8 K Ohm n Figure 1(a) 5 V- Vin 0 2. Find Output Voltage Vour for the circuit in figure - 2, below. R₁ VINI = +1 VOM 100 K Ohm R₂ VIN2 = +2 VOM 200 K Ohm R3 VIN3+3 VC www 300 K Ohm R4 VIN4+4 VO www 400 K Ohm R₂ www 50 K Ohm +10 Volt Figure - 2 Figure 1(b) VOUT Vout

A piezoelectric force transducer has a charge sensitivity of 20 pC/N. It is connected to a charge amplifier and overall gain of transducer and amplifier is 50 mV/N. The gain of amplifier is O 2.5mV/pC O 1mV/pC O 1.5mV/pC O 4mV/pC

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Q.) Figure below divider bras amplifier Circuit. Givent the model Parameter : gm = 5o mS emitter (CE) Voltage BJT hibrid- TT Shows a Common riT: 6 Kr and to %3D : 00 +Vc. RI C2 Tooks touf RL Vo ihe 200 RE TCE Vs 20 a Draw the Ac eQuivalent at low Freauency Circuit Zi and b.) Determine inPut impedance at mid FreaUincy OutPut imPedance Z0 c.) Calculafe two low Cut -oFF FreQuen Cies FLC1 and FLC2 Ci and E2 respectively Such as due to the exterda al capacitors

VIN W -VOUT Figure 1 8) What trouble in the amplifier in Figure 1(c) could cause the voltage gain to drop to 1? A) the power is off B) Rj is open C) VOUT is grounded D) Rf is open

The amplifier below has a variable gain control Rp, using a 0.47-k2 potentiometer. Determine the maximum current gain of the unloaded amplifier. VCC RB Ro Vi CB Co Vo Q1 Vcc = 18 V RB - 330 kohms Rc = 4.7 kohms Rp RE = 1.2 kohms Beta = 120 RE CE A) 88 B 107 111 120

if you design differentiator to differentiate input signal varies in frequency between 1 KHz and 20 KHz then find , If capacitor =0.1 micro farad and feedback resistance=1.6 k ohm then Corner frequency =..... KHz O10 O20 030 040

a) For an opamp, the input bias current Ib =60uA and the input offset current lio= 10uA Find the input base currents and In b) Design an opamp circuit with the following output: Vo = - Vin/4 + 2 For the circuit given below Given :Vin-0.2V, Vsat= 12V D Identify (name) the circuit (stage 1 and 2) O Find the output voltage Vo and the current through the load 4ka 0 Find Vo if the resistor 2kn opens 10 k Stage Stage 2 Vo Vin