The role of color ring inductance
Color ring inductance is an electromagnetic induction element made of insulated wire wound on the magnetic core.
The role of the color ring inductor is as follows:
1. The color ring inductance has the effect of blocking current: the magnetic field in the color ring inductance coil is always against the current change in the coil.The color ring inductance has a blocking effect on the ac current in the circuit. The size of the blocking effect is called inductive resistance XL and the unit is ohm.Its relation with inductance L and ac frequency f is XL=2 PI fL. The inductance of color ring can be divided into high-frequency choke coil and low-frequency choke coil.
2, color ring inductance tuning and frequency selection: color ring inductance and electrolytic capacitor in parallel can form LC tuning circuit.Color ring inductance in the resonance of the circuit inductive reactance and capacitive reactance equivalent and reverse, that is, the circuit natural oscillation frequency f0 and non-ac signal frequency f is the same, then the circuit inductive reactance and capacitive reactance is also the same, the use of color ring inductance is generally not very high, the use of color ring inductance in the circuit is generally more is still relatively stable.
3, the color ring inductance is mainly used to screen signal, filter noise, stabilize current and suppress electromagnetic interference.The basic function of the color ring inductor is to charge and discharge, but many circuit phenomena extended by the basic charge and discharge function make the color ring inductor have a variety of different USES.Now color ring inductance has been used by the majority of customers, the role of small inductance is not small.
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