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POWER AMPLIFIER. 2.0 Introduction. The main characteristics of an amplifier are Linearity, efficiency, output power, and signal gain. In general, there is a trade off between these characteristics. For example, improving amplifier’s linearity will degrade its efficiency.
Calculate input power, output power and efficiency of the amplifier circuit for the circuit shown below for an input voltage that increases the base current by 10mA peak.
Radio frequency amplifiers used in transmitters can be required to produce thousands of kilowatts of output power, and DC amplifiers used in electronic control systems may also need high power outputs to drive motors or actuators of many different types.
power amplifiers. Describe the characteristics of amplifiers, including classes of operation, types of coupling, and frequency ranges. Draw a schematic of class B/AB push-pull amplifier and explain its operation. Determine the efficiency of transistor power amplifiers. Discuss the factors that limit the power rating of a transistor and
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