What is acceptor LCR circuit?
Acceptor circuit provides the maximum response to currents at its resonant frequency. Series resonance circuit is known as acceptor circuit because the impedance at the resonance is at its minimum so as to accept the current easily such that the frequency of the accepted current is equal to the resonant frequency.
Why is series LCR circuit called as acceptor circuit?
Series Circuit Current at Resonance As a series resonance circuit only functions on resonant frequency, this type of circuit is also known as an Acceptor Circuit because at resonance, the impedance of the circuit is at its minimum so easily accepts the current whose frequency is equal to its resonant frequency.
What does acceptor and Rejector circuit mean?
– Series resonance circuit is aka acceptor circuit as it accepts current at resonant frequency. – Impedance is minimum here. – Voltage is magnified in acceptor circuit. ● Acceptor circuit – – Parallel resonance circuit is aka rejector circuit as its current is minimum at resonant frequency.
What are the characteristics of a good acceptor circuit?
The acceptor circuit provides the maximum response to currents at its resonant frequency….Characteristics of the series resonance circuit:
- Minimum impedance,
- Maximum circuit current,
- cos(φ) = 1, hence current and voltage becomes in phase,
- Circuit current becomes proportional to circuit resistance i.e. I ~ 1/R.
What are the uses of acceptor circuit?
LCR series circuit is also known as tuned or acceptor circuit. They have many applications particularly for oscillating circuits. Series LCR circuit has applications in radio and communication engineering. They can be used to select a certain narrow range of frequencies from the total spectrum of ambient radiowaves.
What is quality factor in LCR circuit?
The sharpness of an LCR circuit is measured by the quality factor in an LCR circuit. The Q factor is the energy stored per unit cycle to the energy dissipated per cycle. Higher the Q factor means more energy is stored. The quality factor controls the damping of oscillations.
What is series LCR resonant circuit?
Hint: A series LCR resonant circuit consists of an inductor, a capacitor and a resistance. The resonance will occur in this circuit when the reactance of the circuit will be zero. By equating the reactance of capacitor and inductor, we can obtain the expression for resonant frequency.
What is Q factor in LCR circuit?
Q-factor: In LCR Circuit, the ratio of resonance frequency to the difference of its neighbouring frequencies so that their corresponding current is 1/2 times of the peak value, is called Q-factor of the circuit. Formula: Q=R1CL
What is a rejector circuit state its use?
Electronics. A circuit comprising a capacitor and an inductor connected in parallel, having values chosen such that the combination offers a very high impedance to signals of a particular frequency.
Which circuit is known as rejector circuit?
Parallel resonant circuit is used as filter circuit because such circuit rejects the currents corresponding to the parallel resonant frequencies and allow other frequencies to pass, hence called as filter circuit or rejector circuit.
What is the total reactance of an LCR circuit at resonance?
The total reactance of a series RLC circuit at resonance is zero.
What is series resonant circuit?
Series resonance is a resonance condition that usually occurs in series circuits, where the current becomes a maximum for a particular voltage. In series resonance, the current is maximum at resonant frequency. The series resonance current curve increases to a maximum at resonance then decreases as resonance is passed.
Is the current equal to voltage in a LCR circuit?
Phasor diagram of current Vs voltage for resistor, inductor and capacitor for RLC series circuit Now Current will be equal in all the three as it is a series LCR circuit. Therefore, If = , then = and the voltage is in phase with the current and is known as resonant circuit.
Which is the best description of an acceptor circuit?
The current rapidly falls off on either side of the resonant frequency due to the increased impedance, Figure 4. This circuit is called an acceptor circuit. An acceptor circuit provides maximum response to currents at its resonant frequency. Figure 3. The curve shows the increase in impedance as the frequency is varied above or below resonance
Is the series resonant circuit an acceptor circuit?
The series resonant circuit is an acceptor circuit. Only the ohmic resistance impedes the current in the circuit. In a series resonant circuit, the impedance is at a minimum. At frequencies above or below the resonant frequency, XL is not equal to XC and the reactive component increases the impedance of the circuit.
How is the impedance of an LCR circuit minimized?
Impedance can be minimized by making the applied AC frequency equal to the resonant frequency of the LCR circuit. When the frequencies are equalized, the inductive and capacitive reactance becomes almost zero, and only resistance remains.