inductance
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The chip inductor in the circuit mainly has the functions of filtering, oscillation, frequency division, energy storage and voltage boost, and different inductors have different working principles in the circuit.
A lazy inductor filter circuit is formed by connecting an inductor in the bridge rectifier circuit with the load. A type C filter circuit can be formed by connecting a capacitor behind the inductor filter circuit. In the inductor filter circuit, for the DC component, the inductive reactance of the inductor is very low, so the corresponding residual inductor is in the state of short circuit. Most of the voltage falls on the load. For the wave component, the higher the frequency, the greater the inductive reactance of the inductor.
In practice, it can be used in series or in parallel. When the chip inductors are used in series, the total inductance is the sum of the inductance of two inductors. When the inductors are used in parallel, the reciprocal of the total inductance is the sum of the reciprocal of each inductor.
Inductor in the filter circuit, mainly to stabilize the current and filter the noise in the current, to prevent electromagnetic wave interference, the circuit is generally the use of inductor energy storage component inductor current can not mutation properties, the inductor of the rectifier circuit load phase series, so that it can play the role of filtering.
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