METHOD OF FINE TUNING TO RESONANCE FREQUENCY OF INDUCTOR OF DEVICE FOR MAGNETIC ACTION ON LIVING ORGANISMS Russian patent published in 2021 - IPC A61N1/32 

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment, to devices for magnetic action on living organisms, in which an inductor is included as a load of active oscillator. Accurate tuning to resonant frequency of inductor is carried out due to that in circuit of positive feedback on current of active oscillator there is a leading differentiating phase compensating circuit, which is made in form of in-series connected capacitor and resistor. At that, accurate adjustment is carried out by changing resistance of resistor, which can be a constant resistor, trimmer, a variable resistor, a set of discrete precision resistors switched by solid-state keys or relays, or a digital potentiometer with control from a microcontroller.

EFFECT: method allows effective compensation of phase shift between voltage on inductor and current in inductor and providing accurate tuning to resonant frequency of inductor.

5 cl, 5 dwg