The basic principle of this stable frequency and voltage power supply is LC series resonance, and the early magnetic saturation voltage regulators of stable frequency and voltage power supplies belong to this category. Its advantages include simple structure, no large number of components, high reliability, wide voltage stabilization range, and strong anti-interference and anti-overload capabilities. However, its disadvantages are high energy consumption, loud noise, heavy weight, and high cost. 400HZ power supply
Parametric voltage regulators developed based on the magnetic saturation principle, as well as the "magnetic amplifier-regulated electronic AC voltage stabilizers" popular in China during the 1950s, known as the 614 model, all belong to this type of AC voltage stabilizer principle.
