Question 3 (10 marks) Calculate the input power , the output power and the efficiency of...
Question 3 (10 marks) Calculate the input power , the output power and the efficiency of the amplifier circuit shown in Fig.(3) for an input voltage that results in a base current of 10 mA peak to peak. ㄟˇㄟ Fig. (3) 25 Question 3 (10 marks) Calculate the input power , the output power and the efficiency of the amplifier circuit shown in Fig.(3) for an input voltage that results in a base current of 10 mA peak to peak....
For the class A amplifier circuit of fig. P1, β-40. The input signal results in a base current having a peak value of 5 mA. Determine: (a) The input power (Plac) and output power (Po(ac) (b) The power loss (Pam) and the efficiency (η) of this amplifier. 1. 15
u must show an expression (equation) before inserting in the numbers" β-40. The input signal results in a base 1. For the class A amplifier circuit of fig. Pl, current having a peak value of 5 mA. Determine: (a) The input power (P(d) and output power (Pofac). (b) The power loss (Ploss) and the efficiency (7) of this amplifier. 15 Vcc (18 V) Re-16 Ω 1.2 k2 Ci 100 pF Fig. PI u must show an expression (equation) before inserting...
QUESTION 12 To improve the efficiency of an amplifier, you have to a reduce load power b. increase supply current OC. reduce supply voltage od decrease unwanted power losses QUESTION 13 If the output of a transistor amplifier is 5 V rms and the input is 100 mVrms the voltage gain is O as w 6.500 O c 50 d. 100 QUESTION 14 If the DC current gain of a certain transistor operating in the linear region is 30 and...
Q2: An amplifier operating from t 15-V power supplies is fed with a sinusoidal voltage having 1 V peak and delivers a sinusoidal voltage output of 12 V peak to a 1-kΩ load. The amplifier draws a current of 6.5 mA from each of its two power supplies. The input current of the amplifier is found to be sinusoidal with 0.1 mA peak. Find (a) the voltage gain, (b) the current gain, (c) the power gain, (d) the power drawn...
%) For the circuit as shown in the following figure, use the given output characteristics of the power transistor and assume that /so is 8mA and the input ac signal results in a Ib) of 2mA (peak value) to b(ac) 1) Calculate Ico and the DC input power provided by the DC supply 2) Calulate Icw-pot , the ac output power delivered to the primary side of the transformer and power efficiency n 3) Calculate the ac output power delevered...
Design a boost converter power stage to the following specification: Input voltage Output voltage: Output voltage ripple:max 20mV Load power: Switching frequency: 15kHz 110-125V 300V 1.5kW Calculate: (i) Maximum duty cycle (ii) Minimum duty cycle (iii) Average diode current (iv) Assuming the Rds(on) of the MOSFET is 0.01 Ω, and the diode forward voltage is 0.8V, calculate the approximate efficiency of the circuit. 2. A switching power supply shown in the circuit below has its switch driven by a signal...
Solve for the over-all Power Gain, Output Power, Quiescent Power, and Efficiency Vee 12V Qa 0, 0.22 pP 10 pF o Ln OkH 00 pF 33 Ω 2 W 100 pF 3 Class C(15pts) 2.1 For a class B amplifier providing a 20-V peak signal to a 16- ohm load (speaker) and a power supply of VCC 30 V, determine the A class C amplifier is driven by a 100 kHz signal. The transistor is on for 2 us, and...
Question 1 In the diagram of Superheterodne AM receiver shown below explain the function of each block. (a) 15 marks Antenna Speaker Audio and power amplifiers RF IF Mixer Detector Mi amplifier amplifier AGC --_Local Gang tuned oscillator (b) For a 4-bit DAC, calculate the output voltage for an input code word 1010 if a [10 marks] logic 1 is 10V and a logic 0 is 0V, and R = RFI kΩ Total: 25 marks] Question 2 (a) Explain the...
A single stage common emitter amplifier is shown in figure 1 200 kO 370 2 Output Input BC1088P The characteristic for the amplifier is given below (mA) 35 120 HA 30 25 20 60 ?? 15 40 ? A 10 20 ? A 10 12 (volts) If the amplifier is connected such that a load of 200 ? is connected across the output terminals and a signal source of sinusoidal e.m.f. 0.6 V peak and internal resistance 10 k? is...