Patent ID: 11904608
Assignee: SEIKO EPSON CORPORATION
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A liquid discharge apparatus comprising:
a discharge head that includes a piezoelectric element and discharges a liquid by driving the piezoelectric element; and
a driving signal output circuit that outputs a driving signal for driving the piezoelectric element, wherein
the driving signal output circuit includes
an integrated circuit that outputs a first control signal and a second control signal,
a first transistor to which the first control signal is input,
a second transistor to which the second control signal is input,
a coil that has one end electrically coupled to the first transistor and the second transistor, and the other end electrically coupled to the discharge head, and
a substrate,

the integrated circuit, the first transistor, the second transistor, and the coil are provided on the substrate,
the first transistor is a surface-mount type flat non-lead package, and in the first transistor, change in whether or not a second terminal and a third terminal are electrically coupled to each other is made according to the first control signal input to a first terminal,
the second transistor is a surface-mount type flat non-lead package, and in the second transistor, change in whether or not a fifth terminal and a sixth terminal are electrically coupled to each other is made according to the second control signal input to a fourth terminal,
the coil is electrically coupled to the second terminal and the sixth terminal,
a shortest distance between the second terminal and the one end of the coil is shorter than that between the third terminal and the one end of the coil, and
a shortest distance between the sixth terminal and the one end of the coil is shorter than that between the fifth terminal and the one end of the coil.