- 专利标题: Driving circuit, integrated circuit, and liquid discharge apparatus
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申请号: US16690293申请日: 2019-11-21
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公开(公告)号: US10894405B2公开(公告)日: 2021-01-19
- 发明人: Tetsuo Takagi
- 申请人: Seiko Epson Corporation
- 申请人地址: JP Tokyo
- 专利权人: Seiko Epson Corporation
- 当前专利权人: Seiko Epson Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Harness, Dickey & Pierce, P.L.C.
- 优先权: JP2018-219359 20181122
- 主分类号: B41J2/045
- IPC分类号: B41J2/045
摘要:
There is provided a driving circuit that drives a piezoelectric element, the driving circuit including an integrated circuit, in which the integrated circuit includes a first register that holds an operating state data, a second register that holds an abnormality detection data, an abnormality detection circuit that determines the presence or absence of an abnormality of the operating state data based on the abnormality detection data, and an output control circuit that controls supply of a first voltage signal to the piezoelectric element and supply of a power source voltage to the switch circuit, and in which the output control circuit delays stop of the supply of the power source voltage to the switch circuit with respect to stop of the supply of the first voltage signal to the piezoelectric element when the abnormality detection circuit determines that the operating state data is abnormal.
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