Q2: For the power amplifier of Fig.2, calculate: (a) Po(ac). (b) Pi(dc). (c) % efficiency. (d) Power dissipated by both output transistors

Q: 4. For the circuit given below, determine the voltage (VBB) that just lets the transistor go into…

A: The circuit is as shown below : Given,β=200, VCE(Sat)=0.3V, VBE=0.7V

Q: (b) The circuit in Figure Q.2(b) shows a MOSFET circuit with identical transistors, each has k-2…

A: MOSFET: The conductivity of a metal-oxide-semiconductor field-effect transistor, also known as a…

Q: For correct operation as an ac amplifier a npn BJT must be correctly DC biased to establish an…

A: For the given BJT CE amplifier circuit the role of the resistor needs to be briefed.

Q: 1. a) Calculate the input and output power for the circuit shown. The input signal results in a base…

A: The solution can be achieved as follows.

Q: 6) Consider the circuit shown below. Assume that the transistor is in saturation, VTN = 1V and Kn =…

A: For the given circuit below:Let transistor be in the saturation region.

Power Amplifier

The power amplifier is an electronic amplifier designed to maximize the signal strength of a given input. The input signal strength is enhanced to a high enough level to drive output devices such as speakers, headphones, RF (Radio frequency) transmitters, etc. Unlike voltage / current amplifiers, the power amplifier is designed to drive core loads directly and is used as a storage block in the amplifier series.

Maximum Efficiency Criterion

In every field of engineering, there is a tremendous use of the machine and all those machines are equipped for their popular work efficiency so it very much important for operation engineers to monitor the efficiency of the machine, planning engineers to check out the efficiency of the machine before installing the machine and design engineers to design machine for higher efficiency than and then the utility will procure their products that will ultimately lead to profit and loss of the company. It indicates the importance of efficiency right from the initial stage as manufacturing units, intermediate stage as planning coordinators, and end-users stage as a utility.