Audio Amplifier, Electrical Engineering

Hi, i''ve been given this task:

You are required to design a multi-stage audio amplifier with the following specification:

Voltage gain 250
Input resistance 200 kOhm
Output resistance 5 Ohm
Current drain 15 mA
Supply voltage 12 Volt

This must be done using discrete components. We have been ''taught'' common collector gain stages using NPN and PNP BJT transistors. We also can use a Darlington pair for impedance at the beginning of the circuit (using the emitter output so there is no gain). A capacitor to DC block is also on the input and the output of the example circuit that i have seen.


Posted Date: 1/19/2013 2:00:24 PM | Location : United Kingdom







Related Discussions:- Audio Amplifier, Assignment Help, Ask Question on Audio Amplifier, Get Answer, Expert's Help, Audio Amplifier Discussions

Write discussion on Audio Amplifier
Your posts are moderated
Related Questions
Discuss the feature of Pentium in brief. The Pentium is a 32-bit superscalar, CISC microprocessor.  The word superscalar is used for the processor that has more than one pipeli

The field resistance of a dc machine is 50 ohm at 20 o C. The resistance increases to 55 ohm at 50 o C. Find the temperature coefficient of the resistance material. Ans: Sol

I would like to know the materials needed for electrostatic sprayer.

Q. Explain about Subscriber Loop System? Subscriber Loop System:Each subscriber in a telephone network is connected normally to the nearest switching office by a dedicated pair

Need for Modulation Recognition There are so many communication signals all available with different types of modulation and different frequencies. It is necessary to identify

Q. Evaluate complex power in power system? The complex power ¯S in a single-phase systemis the complex sum of the real (P) and reactive (Q) power, expressed as follows:

Q. The block diagram of Figure represents a multi loop control system. (a) Determine the transfer function C(s)/R(s). (b) For G 2 G 3 H 2 = 1, evaluate C(s)/R(s).

a sensorless brushless DC motor control with back emf (zero crossing point ) technique, using Arduino Microcontroller board control and describe in C. program language.

Explain the effect of temperature on the resistivity of conducting materials. The resistance of most metals rises with rise of temperature whereas that of semiconductors and el