Patent ID: 9358782
Filing Date: 2016-06-07
CPC Classification: B41J,H03K

Claim Text:
1. A liquid discharge apparatus comprising: a drive signal generator that generates a drive signal, the drive signal generator including a plurality of first MOSFETs and a plurality of second MOSFETs, the plurality of first MOSFETs and the plurality of second MOSFETs being connected in pairs in series between a high potential wire having a high potential and a low potential wire having a low potential lower than the high potential so as to configure a first pair of first MOSFET and second MOSFET and a second pair of first MOSFET and second MOSFET, and a third pair of first MOSFET and second MOSFET; a piezoelectric element that is displaced in response to a voltage of the drive signal; a cavity which is filled with a liquid and of which an inside volume is expanded and contracted due to the displacement of the piezoelectric element; and a nozzle that communicates with the cavity and is capable of discharging the liquid by the expansion and contraction of the inside volume of the cavity, wherein at least one of the plurality of first MOSFETs and at least one of the plurality of second MOSFETs have different sizes from each other, the first pair of first MOSFET and second MOSFET is connected between the high potential wire and a first potential wire having a first potential, the second pair of first MOSFET and second MOSFET is connected between the first potential wire and a second potential wire having a second potential, and the third pair of first MOSFET and second MOSFET is connected between the second potential wire and the low potential wire, and the high potential is higher than the first potential, the first potential is higher than the second potential, and the second potential is higher than the low potential.