The filtering loss Pf of silicone tactile switch includes filtering inductance loss and capacitance loss. If it is a continuous mode inductor, the main loss is coil loss, and core loss can be ignored. Capacitors have losses on the series equivalent resistance Resr. In the continuous mode of inductance, the ripple current of the capacitor is small, and the capacitor loss is also small. The overall filtering loss is less than 1% of the output power. If it is a flyback transformer, the Resr loss of the capacitor is greatly increased, and the filtering loss is the capacitor loss. The rectifier circuit loss Pr includes conduction loss caused by forward voltage drop of the rectifier tube, turn off loss caused by reverse recovery, and buffer circuit loss to avoid oscillation diode.

Due to its advantages such as small size, long lifespan, and light touch, it has been widely used in many fields such as household appliances. With the continuous improvement of people's living standards, the upgrading and replacement of these household appliances are becoming faster and faster, and the quantity required will become larger and larger. This is also a great potential direction for our optimistic development prospects.