Title:
液体吐出装置
Document Type and Number:
Japanese Patent JP6572645
Kind Code:
B2
Abstract:
A liquid discharge device includes a modulation circuit that generates a modulation signal obtained by pulse-modulating a source signal by self oscillation, a transistor pair which includes a high side transistor and a low side transistor and which generates an amplified modulation signal by amplifying the modulation signal, a demodulation unit which includes an inductor and a capacitor and which generates a drive signal by smoothing the amplified modulation signal, an piezoelectric element that is displaced when the drive signal is applied, a cavity inside which a liquid droplet is filled and whose internal volume is changed by the displacement of the piezoelectric element, and a nozzle provided to discharge liquid inside the cavity according to the change of the internal volume of the cavity. A distance between the high side transistor and the capacitor is longer than a distance between the inductor and the capacitor.
Inventors:
Nozawa Dai
Application Number:
JP2015132438A
Publication Date:
September 11, 2019
Filing Date:
July 01, 2015
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
B41J2/14; B41J2/01
Domestic Patent References:
| JP2015063119A | ||||
| JP2014184698A | ||||
| JP2013146968A | ||||
| JP2011207234A |
Foreign References:
| US20040032436 |
Attorney, Agent or Firm:
Mikio Suzuno
Kazuaki Watanabe
Mitsuhiro Isobe
Satoshi Nakai
Hiroki Matsuoka
Kazuaki Watanabe
Mitsuhiro Isobe
Satoshi Nakai
Hiroki Matsuoka