Title:
LIQUID EMISSION DEVICE AND HEAD UNIT
Document Type and Number:
Japanese Patent JP2016040085
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a liquid emission device that is able to reduce noise arising in a D-class amplifier circuit, in which compositional elements are mounted on both sides of a board, when the frequency of a drive signal is high.SOLUTION: As indicated by dotted lines, transistors M3-a and M4-a, an inductor L2-a, a capacitor C10-a, and a return circuit Fbc-a are mounted on the rear of a circuit board among the compositional elements of a drive circuit 50-a, and an LSI 500-a and resistors R8-a and R9-a are mounted on the surface thereof. The grounded side of the capacitor C10-a, and the grounded side of the return circuit Fbc-a form an integrated ground pattern.SELECTED DRAWING: Figure 12
Inventors:
KASHIMURA TORU
Application Number:
JP2014164130A
Publication Date:
March 24, 2016
Filing Date:
August 12, 2014
Export Citation:
Assignee:
SEIKO EPSON CORP
International Classes:
B41J2/015; B41J2/14
Domestic Patent References:
| JP2011224784A | 2011-11-10 | |||
| JP2010228241A | 2010-10-14 | |||
| JP2013038458A | 2013-02-21 | |||
| JP2011201218A | 2011-10-13 | |||
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Attorney, Agent or Firm:
Akira Obayashi
Taro Takahashi
Taro Takahashi