Class b power amplifier lab manual

This laboratory manual presents 19 student experiments on Amplifiers and Oscillators. Among the topics covered are Cascade, Cascode, Darlington and Feedback Pair configurations, constant current sources, Differential, Series and Transformer coupledEstimated Reading Time: 9 mins. EEE Analog Electronics - Lab EXPERIMENT 6 Power Amplifiers A. Background Class A Stage The amplifier given in Fig. is of type called Class A amplifier. If the input is a sinusoidal, then the output is also sinusoidal over the DC biasing voltage (Fig. ). volts Fig. The useful AC power is then v O (t), volts V CQ T t V CQ +V CP V. An amplifier designed to deliver electric power to a desired load is known as a power amplifier. Power amplifiers find applications in transmitter, servomotor amplifiers, industrial control circuits, and audio amplifiers. In general, power amplifiers designed to del1iver the maximum power output at the highest efficiency.

eca lab manual dept of ece, lendi institute of engineering and technology page 2 list of experiments a) testing in the hardware laboratory. 1. two stage rc coupled amplifier. 2. rc phase shift oscillator using transistors. 3. class a power amplifier.(series fed) 4. class b complementary symmetry amplifier. 5. current shunt feedback amplifier. 6. • Bias point amplifiers -Class-A -Class-B -Class-C • Switching amplifier -Class-E -Class-F ©James Buckwalter PA Waveform • Drain current consists of DC current and AC Example: 1 W Power Amplifier in CMOS • You are asked to design a 1 W PA in a 1 V CMOS process. ELECTRONICS ENGINEERING II LAB MANUAL EEC DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING 27, Knowledge Park-III, Greater Noida, (U. P.) Phone: Power Amplifiers-Push pull amplifier in class B mode of operation -measurement of gain. 8. Differential Amplifier -Implementation of transistor differential.

9. Set-up and study the working of complementary symmetry class B push pull power amplifier and calculate the efficiency. Design and set-up the RC-Phase shift Oscillator using FET, and calculate the frequency of output waveform. Design and set-up the following tuned oscillator circuits using BJT, and determine the frequency of oscillation. 4 differential amplifier using bjt 15 5 darlington amplifier using bjt 18 6 source follower with bootstrapped circuit 21 7 class - a power amplifier 24 8 class – b complementary symmetry power amplifier 27 9 frequency response of ce amplifier with emitter resistance amplifier 32 10 dc response of cs amplifier Class B Audio Amplifier Example It is required to design a Class B output stage to deliver an average power of 20 W to an 8 speaker load. To avoid saturation of the transistors and non-linear distortion, the power supply V CC is to be 5V greater than peak output voltage. 1. Determine the V CC required. 2. Determine peak current drawn from each.