What is series resonance?

Series resonance occurs when the impedance to current flow at a certain frequency (or frequencies) is low. 2. Parallel resonance occurs when the impedance to current flow at a certain frequency (or frequencies) is high.

What is the Q factor of a series circuit?

Q factor of series resonant circuit is defind as the ratio of the voltage developed across the inductance or capacitance at resonance to the impressed voltage, which is the voltage applied across R.

What is quality factor in parallel resonance?

In a parallel RLC, It is defined as, resistance to the reactance of reactive element. The quality factor Q is also defined as the ratio of the resonant frequency to the bandwidth. Q = f r B W. For parallel RLC Circuit.

What is the effect of series resonance?

Effects of Series Resonance i.e Zr = R. At the resonance condition, as the impedance of the circuit is minimum, the current in the circuit is maximum. i.e Ir = V/Zr = V/R. As the value of resonant current Ir is maximum hence, the power drawn by the circuit is also maximized. i.e Pr = I2Rr.

What is series LCR resonant circuit?

A series LCR resonant circuit is an a.c. circuit in which a series combination of an inductor, capacitor and resistor is connected to a source of an alternating e.m.f. Consider an alternating e.m.f. Applied to a series of inductance L, pure capacitor of capacitance C and a resistor of resistance R.

What is resonance in series LCR circuit?

The resonance of a series LCR circuit occurs when the inductive and capacitive reactances are equal in magnitude but cancel each other because they are 180 degrees apart in phase.

How do you find Q factor in resonance?

The Q factor of the pMUT can be determined by the real part of the impedance frequency spectrum, which is defined as Q = fr/Δf, where the resonance frequency fr is the frequency at which the real part of the impedance reaches its maximum, Δf is the width of the peak at its half height, so-called 3 dB bandwidth.

What is the Q-factor at series resonance?

Due to the increase in current, the voltage across L and C are also increased. This magnification of voltages at series resonance is termed as Q–factor. It is defined as the ratio of voltage across L or C to the applied voltage. At resonance, the circuit is purely resistive. Therefore, the applied voltage is equal to the voltage across R.

Series Resonance Summary 1 For resonance to occur in any circuit it must have at least one inductor and one capacitor. 2 Resonance is the result of oscillations in a circuit as stored energy is passed from the inductor to the capacitor. 3 Resonance occurs when XL = XC and the imaginary part of the transfer function is zero.

How do you find the power factor of a resonance circuit?

At resonance the impedance of the circuit is equal to the resistance value as Z = R. At low frequencies the series circuit is capacitive as: XC > XL, this gives the circuit a leading power factor. At high frequencies the series circuit is inductive as: XL > XC, this gives the circuit a lagging power factor.

What is bandwidth of a series resonance circuit?

Bandwidth of a Series Resonance Circuit. The frequency response of the circuits current magnitude above, relates to the “sharpness” of the resonance in a series resonance circuit. The sharpness of the peak is measured quantitatively and is called the Quality factor, Q of the circuit.