Excavator parts TOSD-05-031 solenoid coil 12V 24V H49mm φ22mm

he coil has many functions in the circuit, mainly including blocking current, tuning and frequency selection, filtering, delay and notch. twelve

Current blocking effect: the coil has a blocking effect on AC current, and the magnitude of this blocking effect is called inductive reactance. Inductive coil counteracts the change of current in the coil by generating self-induced electromotive force, so as to realize the obstruction of AC current. In high-frequency circuits, the coil's resistance to current is particularly significant, which can effectively limit the passage of high-frequency current.

Tuning and frequency selection: LC tuning circuit can be formed by parallel connection of inductance coil and capacitor. When the natural oscillation frequency of the circuit is equal to the frequency of the non-alternating signal, the inductive reactance and capacitive reactance of the circuit are also equal, so the electromagnetic energy oscillates back and forth between the inductor and the capacitor, resulting in resonance. This resonance phenomenon makes the inductance coil have the function of frequency selection, which can screen out the signal with specific frequency.