Invention Grant
- Patent Title: Driving circuit for driving a capacitive load
- Patent Title (中): 用于驱动电容性负载的驱动电路
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Application No.: US15147024Application Date: 2016-05-05
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Publication No.: US09586397B2Publication Date: 2017-03-07
- Inventor: Akira Abe , Hiroshi Sugita
- Applicant: Seiko Epson Corporation
- Applicant Address: JP
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: JP2014-040408 20140303
- Main IPC: B41J2/04
- IPC: B41J2/04 ; B41J2/045 ; H03K17/687 ; B41J2/14

Abstract:
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.
Public/Granted literature
- US20160243824A1 DRIVING CIRCUIT FOR DRIVING A CAPACITIVE LOAD Public/Granted day:2016-08-25
Information query
IPC分类: