| 摘要 |
Provided is a liquid discharging apparatus which includes a modulation circuit which generates a modulation signal which is obtained by pulse-modulating a source signal, a transistor which generates an amplified modulation signal by amplifying the modulation signal, a low pass filter which includes an inductor and a capacitor and generates a drive signal by smoothening the amplified modulation signal, a piezoelectric element which is displaced by receiving the drive signal, a cavity of which the internal volume changes in accordance with the displacement of the piezoelectric element, a nozzle through which liquid in the cavity is discharged in accordance with change in the internal volume of the cavity, and a circuit substrate on which the modulation circuit, the transistor, and the low pass filter are mounted, in which the capacitor is a leadless type capacitor. |
| 主权项 |
1. A drive circuit for driving a capacitive load comprising:
an integrated circuit including a modulation circuit that generates a modulation signal that is obtained by pulse-modulating a source signal; a transistor that generates an amplified modulation signal by amplifying the modulation signal; a low pass filter that includes a capacitor and generates a drive signal which is applied to the capacitive load by smoothening the amplified modulation signal; and a circuit substrate on which the integrated circuit, the transistor, and the low pass filter are mounted, wherein the capacitor is a leadless type capacitor and includes a first electrode and a second electrode, the integrated circuit and the first electrode are connected to a ground pattern, and a distance of the integrated circuit and the first electrode of the capacitor is smaller than a distance of the integrated circuit and the second electrode of the capacitor. |
