Patent ID: 9539804
Date: 2017-01-10
CPC Classifications: B41J

Claim:
1. A liquid discharging apparatus comprising: a modulation portion which generates a modulation signal pulse-modulated from a source signal; a gate driver which generates an amplification control signal based on the modulation signal; a boosting circuit which boosts and supplies a voltage to the gate driver; a transistor which generates an amplification modulation signal amplified from the modulation signal based on the amplification control signal; a low pass filter which demodulates the amplification modulation signal and generates a driving signal; a piezoelectric element which is displaced as the driving signal is applied; a cavity in which the inside is filled with liquid and the internal volume changes due to the displacement of the piezoelectric element; and a nozzle which communicates with the cavity, and discharges the liquid inside the cavity as liquid droplets in accordance with the change in the internal volume of the cavity, wherein the gate driver and the boosting circuit are electrically connected to a common ground terminal, and wherein a wiring impedance between the ground terminal and the gate driver is smaller than a wiring impedance between the ground terminal and the boosting circuit.