Patent ID: 9375917
Filing Date: 2016-06-28
CPC Classification: B41J,H03K

Claim Text:
1. A liquid discharge apparatus comprising: a modulation circuit that generates a modulated signal by pulse-modulating a source signal through self-oscillation; a pair of transistors that include a high-side transistor and a low-side transistor and amplify the modulated signal to generate an amplified modulated signal; a low-pass filter that includes an inductor and a capacitor and smoothes the amplified modulated signal to generate a drive signal; a piezoelectric element that is displaced by application of the drive signal thereto; a cavity that is filled with a liquid inside and has an internal volume which changes when the piezoelectric element is displaced; and a nozzle that is provided to discharge the liquid inside the cavity in response to the change of the internal volume of the cavity, wherein the shortest distance between a low-side transistor and the capacitor is shorter than a shortest distance between the high-side transistor and the capacitor.