Patent ID: 9539805
Date: 2017-01-10
CPC Classifications: B41J,H03F

Claim:
1. A liquid discharging apparatus comprising: an integrated circuit device; a feedback circuit; a transistor which generates an amplification modulation signal amplified from a modulation signal pulse-modulated from a source signal, based on an 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 integrated circuit device includes a modulation portion which generates the modulation signal; a gate driver which generates the amplification control signal based on the modulation signal; and a feedback terminal which is electrically connected to the modulation portion and the feedback circuit, wherein the feedback circuit generates a feedback signal based on the driving signal and sends back the feedback signal to the modulation portion, and wherein, in a plan view, the gate driver is disposed outside the shortest straight path between the feedback terminal and the modulation portion.