What Is a Ceramic Resonator?

Ceramic resonator. At this time, the reactance in the series circuit is 0, and the current and voltage are in phase. It is called that the inductive and capacitive reactances in the series resonant RLC parallel circuit can cancel each other, that is, 1 / L-C = 0. The reactance in the parallel circuit is 0, and the current and voltage are in phase. The current effective value of the parallel resonance series resonance reaches the maximum, and the effective value of the parallel resonance voltage reaches the maximum. High voltage may appear at both ends of L and C of the series resonance. Parallel resonance Overcurrent L and C may have a series resonance reactance voltage of 0 and a parallel resonance reactance of 0. Series resonance is current resonance and generally plays a role in current amplification. For example, a radio amplifier amplifies a weak current signal through series resonance.

Ceramic resonator

Right!

Ceramic resonator. At this time, the reactance in the series circuit is 0, and the current and voltage are in phase. It is called that the inductive and capacitive reactances in the series resonant RLC parallel circuit can cancel each other. The reactance in the parallel circuit is 0, and the current and voltage are in phase. The current effective value of the parallel resonance series resonance reaches the maximum, and the effective value of the parallel resonance voltage reaches the maximum. High voltage may appear at both ends of L and C of the series resonance. Parallel resonance Overcurrent L and C may have a series resonance reactance voltage of 0 and a parallel resonance reactance of 0. Series resonance is current resonance and generally plays a role in current amplification. For example, the radio amplifies a weak current signal through series resonance.

The resonator can get the maximum amplitude when the natural frequencies are close to equal. The radio used in our lives, when the radio is the same as the natural frequency of the IC circuit and the transmission frequency, the signal with the maximum amplitude can be obtained in the IC circuit, so that the clear Sound, usually tuning is to change the size of the inductance or capacitance of the IC loop to change the natural frequency of the loop to achieve tuning and selection. The resonator is to allow a certain frequency signal to pass, block other frequency signals, and achieve the purpose of selection. When the signal frequency When the natural frequency of the resonator is equal, the signal passes smoothly like passing through a small resistance (or wire), and when the frequency far away from the natural resonant frequency tries to pass through it like a large impedance.