induktorid

Induktorid is a term that appears in some non-English technical sources and is not widely used in standard electrical engineering literature. In most contexts, the component is known as an inductor. An induktorid, when it corresponds to what engineers call an inductor, is a passive electronic device that stores energy in a magnetic field created by a current flowing through a coil.

The basic principle relies on inductance, L, which relates the voltage across the coil to the time rate of change of current by V = L di/dt. The energy stored in an inductor is (1/2)LI^2. Inductors can be constructed with various core materials, including air, ferrite, or laminated iron, and they can be shaped as coils of different geometries such as solenoids or toroids. Core materials influence inductance, losses, and saturation behavior.

Common applications include filtering (as part of low-pass or high-pass networks), energy storage in power supplies (DC-DC converters), and choking to block AC while allowing DC to pass. Inductors are also used in RF circuits for impedance matching and in resonant circuits when paired with capacitors.

Key design considerations involve selecting an appropriate inductance value, tolerances, DC resistance, and parasitic elements like inter-winding capacitance and stray inductance. The self-resonant frequency, determined by these parasitics, limits high-frequency performance. Size, temperature stability, core losses, and saturation flux density are also important for power applications.

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