Patent ID: 8919902

Claim:
A droplet discharging device comprising: a discharging hole to discharge droplets; a piezoelectric element that deforms with electrical charging and discharging to discharge droplets from the discharging hole; and a piezoelectric element drive circuit that drives the piezoelectric element to cause the piezoelectric element to charge and discharge, wherein the piezoelectric element drive circuit comprises: a control signal generating unit to generate a control signal that controls output of a drive signal applied to the piezoelectric circuit; and a drive signal output unit to output the drive signal applied to the piezoelectric element based on the control signal, wherein the drive signal output unit comprises: a first field effect transistor that operates to supply an electric current to the piezoelectric element based on the control signal when charging the piezoelectric element; and a second field effect transistor that operates to discharge an electric current from the piezoelectric element based on the control signal when discharging the piezoelectric element.