Patent ID: 9656461
Date: 2017-05-23
CPC Classifications: B41J

Claim:
1. A drive circuit for driving a capacitive load, comprising: a modulation circuit that generates a modulated signal obtained by performing pulse modulation on a source signal; a transistor that amplifies the modulated signal to generate an amplified modulated signal; a lowpass filer that smoothes the amplified modulated signal to generate a driving signal which is applied to the capacitive load; and a circuit substrate on which the modulation circuit, the transistor, and the lowpass filter are mounted, wherein the transistor includes: wherein the die pad, the first lead, and the second lead are electrically connected to different wiring patterns of the circuit substrate, and wherein the first electrode, the die pad, and one of the different wiring patterns are stacked so that the first electrode is electrically connected to the one of the different wiring patterns.