Transformer
Transformers utilize the principle of magnetic coupling; the primary and secondary coils are not connected by wires but coupled through electromagnetic induction. The transformer transfers energy between the power grid and the load via magnetic flux. When an alternating current is passed through the primary winding, it generates an alternating magnetic flux. This flux passes through the secondary winding, inducing an electromotive force in the secondary winding. If a load is connected to the secondary winding, a current will flow in the circuit connected to the secondary winding, thus achieving the transmission and conversion of electrical energy.
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Transformers utilize the principle of magnetic coupling; the primary and secondary coil currents are not connected via wires but rather coupled through electromagnetic induction. The transformer uses magnetic flux as a medium to transfer energy between the power grid and the load. When an alternating current is passed through the primary winding, it generates an alternating magnetic flux. This flux passes through the secondary winding, inducing an electromotive force in the secondary winding. If a load is connected to the secondary winding, a current will be generated in the circuit connected to the secondary winding, thus achieving the transmission and conversion of electrical energy.
To increase the inductance and magnetic field strength of an inductor, a core is usually inserted into the inductor coil. The core material typically has a high permeability, which can concentrate the magnetic field, thereby improving the performance of the inductor. The shape and size of the core will also affect the inductance and magnetic field distribution of the inductor.
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