Explain the significance of the coupling capacitor, Electrical Engineering

Q. Explain the significance of the Coupling capacitor and the RE - CE circuit.

The function of the coupling capacitor is to isolate the amplifier input circuit from the source. Since capacitor blocks dc it does not allow the dc components from the input circuit to get to the base of transistor and to change the Q point.

Additional requirement of Cin is that it must pass the input ac signal unattenuated. Hence the lower cut-off frequency (LCF) of the amplifier is determined by the coupling capacitor.

The RE - CE  combination is connected in series with the cathode to obtain temperature stability stability and proper functioning of the amplifier.

Posted Date: 6/11/2013 4:04:47 AM | Location : United States

Related Discussions:- Explain the significance of the coupling capacitor, Assignment Help, Ask Question on Explain the significance of the coupling capacitor, Get Answer, Expert's Help, Explain the significance of the coupling capacitor Discussions

Write discussion on Explain the significance of the coupling capacitor
Your posts are moderated
Related Questions
Q. Show the r-1s Complement? Subtract every digit of the number from r-1 (the radix of the system - 1)ex.             952 10

(a) Show Diode as a half wave rectifier. Determine efficiency and Ripple factor of the half wave rectifier. (b) Write short note on LED. Briefly explain : (i) Positive cli

Bronze is an alloy of (A) Copper and Tin.               (B) Copper and Steel. (C) Copper and Mercury.      (D) Copper and Aluminium. Ans: Bronze is an alloy of Cop

Q. For an RG-290/U aluminum rectangular wave - guide, a = 58.42 cm and b = 29.21 cm. Compute the theoretical and practical frequency ranges of operation for the guide.

what is the necessity of copper brushes in dc motors?

Problem statement: A specialized piece of laboratory test equipment, called a spectrum analyzer,will be placed on a mobile push cart. The spectrum analyzer measures the amplitude

how do you get better at school

Ask quA 380-V, 15-hp, 50-Hz, four-pole, Y-connected wound-rotor induction motor has the following impedances in ohms per phase referred to the stator circuit: R1= 0.453? R2= 0.24

Q. Slip-power controlled wound-rotor induction-motor drives? Slip power is that portion of the air-gap power that is not converted into mechanical power. The methods involving

Consider the basic MOSFET circuit shown in Figure with variable gate voltage. The MOSFET is given to have very large V A , V T = 4V,and I DSS = 8 mA. Determine i D and v DS for