Supply to a piezoelectric element, uses power transistor switches to direct current first through an inductor which acts as an energy store then from the inductor to the piezoelectric element

摘要

The supply for the piezoelectric element (6) comes from the vehicle battery (4), and is connected through a switching circuit that uses insulated gate MOSFETs (1,2) to switch current through an inductor (3), which acts as a temporary energy storage, then through the piezoelectric element.