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A lot of people who have not been in contact with inductance, in the differential mode choke coil and common mode inductance is always confused between the two today to simply talk about what is the differential mode inductor, what role it has, the differential mode inductance in the AC frequency of a certain Case, the greater the inductance, the greater the ability to block the AC, the smaller the inductance, the less the ability to hinder. In addition, a certain amount of inductance in the case, the higher the frequency of AC, the inductance of the obstruction of the AC capacity is also greater, the lower the frequency, the inductance of AC impede the smaller capacity. In other words, the inductor has a characteristic of preventing the passage of the alternating current and allowing the direct current to pass therethrough.

The ideal inductor is a pure common mode choke coil , it is not a capacitor component allows the AC through, there is no resistance to allow direct current through, there is no loss, then regardless of its inductance size, can completely prevent the passage of AC. Inductance has an impediment to AC. In the case of a certain frequency of AC, the greater the inductance, the greater the ability to impede the AC, the smaller the inductance, the smaller the obstruction. In addition, a certain amount of inductance in the case, the higher the frequency of AC, the inductance of the obstruction of the AC capacity is also greater, the lower the frequency, the inductance of AC impede the smaller capacity. In other words, the inductor has a characteristic of preventing the passage of the alternating current and allowing the direct current to pass therethrough.

The ideal inductor is a pure inductor, it is not a capacitor component allows the AC through, there is no resistance to allow direct current through, there is no loss, then regardless of its inductance size, can completely prevent the passage of AC.

But this inductance is not. Because of this, the inductor has been applied. We can use the inductor in the rectifier circuit, because we want to get a powerful DC power supply, you must use the rectifier circuit to AC power into the DC we need. And because the DC rectifier is not pure DC, it contains a lot of AC components, which we do not want, so we can put inductors in series rectifier circuit, the rectifier out of the DC through the inductor, the AC component It is greatly reduced.

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