Capacitive discharge energy harvesting converter

An energy harvesting circuit includes a device for converting mechanical energy into electrical energy, a solid state voltage dependent switch, and an inductor. The piezoelectric device, the solid state voltage dependent switch, and the inductor are all connected in series. The solid state voltage dependent switch has a first threshold The solid state voltage dependent switch remains open until voltage applied across the solid state voltage dependent switch by the device reaches the first threshold. When the voltage applied across the solid state voltage dependent switch reaches the first threshold the solid state voltage dependent switch closes so charge from the device flows through the switch and through the inductor.