Title:
LIQUID EJECTING DEVICE, DRIVER CIRCUIT, AND HEAD UNIT
Document Type and Number:
WIPO Patent Application WO/2016/152079
Kind Code:
A1
Abstract:
A liquid ejecting device includes: an ejection section that includes a piezoelectric element that is displaced upon application of a drive signal, and ejects a liquid upon displacement of the piezoelectric element; a comparator unit that includes a first comparator section and a second comparator section, receives an input signal and the drive signal, and outputs a first control signal and a second control signal; and a transistor pair that includes a first transistor that is controlled based on the first control signal and a second transistor that is controlled based on the second control signal, and outputs the drive signal, the first comparator section comparing a first comparison signal and a second comparison signal and outputting the first control signal, the first comparison signal being a signal obtained by offsetting one of the input signal and the drive signal, the second comparator section comparing a third comparison signal and a fourth comparison signal and outputting the second control signal, and the third comparison signal being a signal obtained by offsetting one of the input signal and the drive signal.
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Inventors:
ABE AKIRA (JP)
Application Number:
PCT/JP2016/001431
Publication Date:
September 29, 2016
Filing Date:
March 14, 2016
Export Citation:
Assignee:
SEIKO EPSON CORP (JP)
International Classes:
B41J2/045
Foreign References:
| JPH07142939A | 1995-06-02 | |||
| US5488322A | 1996-01-30 | |||
| US20080211847A1 | 2008-09-04 | |||
| EP0929193A2 | 1999-07-14 | |||
| US4730168A | 1988-03-08 | |||
| JP2009190287A | 2009-08-27 |
Attorney, Agent or Firm:
FUSE, Yukio et al. (JP)
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