Problem #2 - Common-Emitter Amplifier Using the rule of thirds, design a single-supply Common Emitter Amplifier using a 12 V supply for Vcc, with a collector current Ic = 0.5 mA. Use a current through R₁ equal to 25% of Ic. Vcc R₁ R₂ (a) Specify all the values for RC, R£, R₁, R₂ (b) Specify the voltages VB, VE Rc RE Recall the rule of thirds states that 1/3 of Vcc flows across Rc, 1/3 across R₂, and assume a very high ß such that Iç = IĘ, i = 0 (c)Assuming the lowest value for ß is 70, calculate the actual value the collector current will have with the circuit design in parts (a) and (b).
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.
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