Get premium membership and access questions with answers, video lessons as well as revision papers.

Determine the (i) operating frequency and (ii) feedback fraction for Collpitt’s oscillator shown in Fig. 6.12.

Determine the (i) operating frequency and (ii) feedback fraction for Collpitt’s oscillator shown in Fig. 6.12.

Answers

- (i) Operating Frequency. The operating frequency of the circuit is always equal to the resonant frequency of the feedback network. As noted previously, the capacitors C₁ and C₂ are in series.

---

Wilfykil answered the question on August 15, 2019 at 12:37

Next: State three characteristics of the first phase/stage of demographic transition.
Previous: A 1 mH inductor is available. Choose the capacitor values in a Collpitt’s oscillator so that f = 1 MHz and mv = 0.25.

View More Electronics Questions and Answers | Return to Questions Index

Related Questions

• Explain the Barkhausen Criterion(Solved)
  

  Explain the Barkhausen Criterion

  Date posted: August 15, 2019.  Answers (1)

• Give the Essentials of Transistor Oscillator(Solved)
  

  Give the Essentials of Transistor Oscillator

  Date posted: August 15, 2019.  Answers (1)

• What is a Positive Feedback Amplifier — Oscillator?(Solved)
  

  What is a Positive Feedback Amplifier — Oscillator?

  Date posted: August 15, 2019.  Answers (1)

• Explain and show Undamped Oscillations from Tank Circuit(Solved)
  

  Explain and show Undamped Oscillations from Tank Circuit

  Date posted: August 15, 2019.  Answers (1)

• What is an Oscillatory Circuit?(Solved)
  

  What is an Oscillatory Circuit?

  Date posted: August 15, 2019.  Answers (1)

• List and explain the various types of Sinusoidal Oscillations(Solved)
  

  List and explain the various types of Sinusoidal Oscillations

  Date posted: August 15, 2019.  Answers (1)

• Give the advantages of a sinusoidal oscillator(Solved)
  

  Give the advantages of a sinusoidal oscillator

  Date posted: August 15, 2019.  Answers (1)

• What is a Sinusoidal Oscillator?(Solved)
  

  What is a Sinusoidal Oscillator?

  Date posted: August 15, 2019.  Answers (1)

• Define the term Phase Reversal(Solved)
  

  Define the term Phase Reversal

  Date posted: August 15, 2019.  Answers (1)

• Select a suitable value for the emitter bypass capacitor in Fig. 5.4 if the amplifier is to operate over a frequency range from 2 kHz...(Solved)
  

  Select a suitable value for the emitter bypass capacitor in Fig. 5.4 if the amplifier is to operate over a frequency range from 2 kHz to 10 kHz.
  
  

  Date posted: August 15, 2019.  Answers (1)

• What is the role of emitter bypass capacitor C_E in CE amplifier circuit shown in Fig. 5.3 ? Illustrate with a numerical example.(Solved)
  

  What is the role of emitter bypass capacitor C_E in CE amplifier circuit shown in Fig. 5.3 ? Illustrate with a numerical example.
  
  

  Date posted: August 15, 2019.  Answers (1)

• Show and explain a Practical Circuit of Transistor Amplifier(Solved)
  

  Show and explain a Practical Circuit of Transistor Amplifier

  Date posted: August 15, 2019.  Answers (1)

• Define Single Stage Transistor Amplifier and explain how it works(Solved)
  

  Define Single Stage Transistor Amplifier and explain how it works

  Date posted: August 15, 2019.  Answers (1)

• For a single stage transistor amplifier, the collector load is R_C = 2 kilo-ohms and the input resistance R_i = 1 kilo-ohm. If the current...(Solved)
  

  For a single stage transistor amplifier, the collector load is R_C = 2 kilo-ohms and the input resistance R_i = 1 kilo-ohm. If the current gain is 50, calculate the voltage gain of the amplifier.

  Date posted: August 15, 2019.  Answers (1)

• If the collector current changes from 2 mA to 3mA in a transistor when collector- emitter voltage is increased from 2V to 10V, what is...(Solved)
  

  If the collector current changes from 2 mA to 3mA in a transistor when collector- emitter voltage is increased from 2V to 10V, what is the output resistance?

  Date posted: August 15, 2019.  Answers (1)

• A change of 200 mV in base-emitter voltage causes a change of 100 µA in the base current. Find the input resistance of the transistor.(Solved)
  

  A change of 200 mV in base-emitter voltage causes a change of 100 μA in the base current. Find the input resistance of the transistor.
  
  

  Date posted: August 15, 2019.  Answers (1)

• What does the performance of a transistor amplifier depend upon?(Solved)
  

  What does the performance of a transistor amplifier depend upon?

  Date posted: August 15, 2019.  Answers (1)

• What is the Output from Transistor Amplifier?(Solved)
  

  What is the Output from Transistor Amplifier?

  Date posted: August 15, 2019.  Answers (1)

• Determine the Q point of the transistor circuit shown in Fig. 4.40. Also draw the d.c. load line. Given ß = 200 and V_BE =...(Solved)
  

  Determine the Q point of the transistor circuit shown in Fig. 4.40. Also draw the d.c. load line. Given β = 200 and V_BE = 0.7V.
  
  

  Date posted: August 15, 2019.  Answers (1)

• In the circuit diagram shown in Fig. 4.39 (i), if V_CC = 12V and R_C = 6 kilo-ohms, draw the d.c. load line.(Solved)
  

  In the circuit diagram shown in Fig. 4.39 (i), if V_CC = 12V and R_C = 6 kilo-ohms, draw the d.c. load line. What will be the Q point if zero signal base current is 20μA and β = 50?

  Date posted: August 15, 2019.  Answers (1)