A brief analysis of the role of resonant inductance
Role of resonant inductor:
1. Resistance to current: the self-induced electromotive force in the coil is always in opposition to the current change in the coil.It can be divided into high frequency choke coil and low frequency choke coil.
2. Tuning and frequency selection: inductance coil and capacitor in parallel can form LC tuning circuit.In resonance, since the inductive reactance of the circuit is equal to and opposite to the capacitive reactance, the inductive reactance of the total circuit current is the minimum and the current flow is the maximum (referring to the ac signal of f=f0). Therefore, LC resonant circuit plays the role of frequency selection and can select the ac signal of a certain frequency f.
The key word for this information is： working resonant principle difference inductor differential inductive characteristics common Definition transformer selection inductance Design frequency
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