pVcc = 15V 2.2kN 2.2kN 15KN 15KN 10μF o Vo Q2 10µF 10μF 4.7kN, : 20μ F 4.7kN 1kN 1kN - 20μF
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.
The input signal Vi = 100microvolts is applied to the multi-level amplifier input in the figure. The transistors in the circuit are identical and given as beta = 100. In addition, it should be taken as k.T / q = 26mV. Accordingly, the circuit: a. Find the voltage gains Av1, Av2, Av. b. Find the input and output resistance values. c. An input signal has been given. Draw the outputs of the amplifier at the 1st and 2nd floors so that they are seen together on the same axis.
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