Patent ID: 6528925
Filing Date: 2003-03-04
Classification: H01L

Abstract:
A piezoelectric/electrostrictive element driving circuit, comprising:a voltage source; first and second piezoelectric/electrostrictive elements; a first charging circuit for charging said first piezoelectric/electrostrictive element; a second charging circuit, independent of said first charging circuit, for charging said first piezoelectric/electrostrictive element; at least one discharging circuit for discharging said first piezoelectric/electrostrictive element; a third charging circuit for charging said second piezoelectric/electrostrictive element; a fourth charging circuit, independent of said third charging circuit, for charging said second piezoelectric/electrostrictive element; at least one discharging circuit for discharging said second piezoelectric/electrostrictive element; wherein current discharged from said first piezoelectric/electrostrictive element flows to said second piezoelectric/electrostrictive element through said third charging circuit, and current discharged from said second piezoelectric/electrostrictive element flows to said first piezoelectric/electrostrictive element through said first charging circuit.