Supply Choke Coil Inductor

Supply Choke Coil Inductor

At this stage, it has been known that common-mode signals are two signals with the same strength and the same phase difference. Common-mode signals generally come from the power network. Common-mode signals will harm the normal operation of the circuit board and affect the surrounding environment in the way of radio waves.

Even if the inductor is used to suppress the common mode signal, it is undoubtedly related to the electromagnetic field. First of all, the direction of the magnetic field caused by the plug-in solenoid sensation is introduced in detail. (For the application of the new project, it is not necessary to calculate the size of the electromagnetic field and magnetic flux caused by the inductor in some places, such as to suppress the common mode signal. For the current solenoid, the direction resolution of the magnetic field is as follows: hold the solenoid tightly with your left hand, and point the direction of the current with four fingers. The thumb is in the direction of the magnetic field. A key term, magnetic flux, is described in detail below. Vertical according to the magnetic field lines of a cross section the total output is called the magnetic flux of the cross section, commonly known as magnetic flux. Magnetic line of force is caused by the energized solenoid, is specific, just can not see and touch, magnetic line of force is a closed and sum control loop, for the energized solenoid, magnetic line of force need to go through the magnetic inductance line, magnetic line of force is positively correlated with magnetic flux B.