SMD inductor. In the circuit, when the current flows through the core of the inductor, the electromagnetic field will be generated next to the inductor. The magnitude of the current is the magnitude of the electromagnetic field of the inductor.
Normally, the unit of inductance is L, and winding inductance is a physical quantity that measures the coil's ability to produce electromagnetic induction.Put current into an inductive coil, and a magnetic field will be generated around the coil.
How does the unit conversion of inductance work?
(1) the commonly used unit of inductance is Henry (denoted by H).
(2) conversion between units of inductance: 1 heng =1 millisievert =1 million microheng =1 billion naheng = 100 billion picheng.Common inductance error forms are generally: error value is ±20% (expressed in M), error value is ±10% (expressed in K).The error value is ±5% (represented by J) and the error value is ±1% (represented by F).
Commonly used inductance of the amount of inductance but is L, and the size of the inductance is based on the winding number of inductance winding, the more winding number of inductance, the higher the inductance of inductance, the more winding number of inductance winding, the more densely wound wire, the greater the amount of inductance;
Resonance loop for short wave band applications.The larger the power supply used by the inductor, the stronger the current, and the larger the magnetic flux through the inductor, the more it can change the current of the inductor.Inductance under the action of a magnetic field, the coil will change according to the size of the magnetic field.
The maximum allowable deviation of inductance in the circuit is the allowable error between the nominal inductance on the inductor and the actual inductance.
Color ring inductor is generally used for oscillation or filtering circuit inductor requirements of high precision, the allowable deviation is ±0.2%~±0.5%;But used in coupling, high frequency choke coil precision requirements are not high;The allowable deviation is ±5%~10%.The symbol of inductance is L.
Inductance unit: heng (H), milliheng (mH), wei heng (muh), nheng (nH), their conversion relationship is: 1 heng =1000 milliheng =10^6 weiheng =10^9 nheng.
The size of inductance L is determined according to the winding number of inductance, the structure of inductance and winding method.
The more coil number of inductance coil, the denser the wound coil, the larger the inductance.The higher the amount of inductance, the different purpose of inductance coil.The amount of inductance required is also different for example.Resonance loop for short wave band applications.
Post time: Oct-16-2019