Saturated Inductor and Its Application in Switching Power Supply

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Saturated Inductor and Its Application in Switching Power Supply [Copy link]

Saturated Inductor and Its Application in Switching Power Supply

Abstract: The classification and basic physical characteristics of saturable inductors are introduced, and the applications of saturable inductors in spike suppressors, magnetic amplifiers, phase-shifted full-bridge ZVS-PWM converters, resonant converters and inverters are summarized.

Keywords: saturable inductor; spike suppressor; magnetic amplifier; phase-shifted full-bridge; resonant converter; inverter power supply

Saturated inductor is an inductor with high hysteresis loop squareness ratio, high initial permeability, small coercive force and obvious magnetic saturation point. It is often used as a controllable delay switch element in electronic circuits. Due to its unique physical properties, it has been increasingly widely used in high-frequency switching power supply switching noise suppression, high current output auxiliary circuit voltage regulation, phase-shifted full-bridge converter, resonant converter and inverter power supply.