A vibrating motor uses a rotatable linking module to guide elastic force into linear motion.
A triangular flux bridge guides magnetic flux between permanent magnets in a pivot motor stator assembly.
An offset detecting circuit aligns Hall signals with back EMF zero points to reduce feedback current and power consumption in DC brushless motors.
A bi-directional angular displacement lever with magnets extends electrical output duration through alternating magnetic field concentration.
Localized stiffeners on flexible printed circuit cables prevent metal trace cracking during high-frequency bending cycles.
Ferromagnetic screens optimize flux distribution to increase mechanical power tenfold without enlarging device volume.
A resonant attachment structure amplifies bristle tip movement through mechanical vibration to enhance cleaning coverage.