Liquid ejecting apparatus and head unit
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United States of America Patent
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Nov 10, 2015
Grant Date -
May 21, 2015
app pub date -
Oct 17, 2014
filing date -
Nov 21, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A liquid ejecting apparatus includes an original drive signal generation section that generates an original drive signal, a signal modulation section that modulates the original drive signal and generates a modulation signal, a signal amplification section that amplifies the modulation signal and generates an amplification modulation signal, a signal conversion section that converts the amplification modulation signal into a drive signal, a piezoelectric element that deforms by the drive signal, a cavity that expands or contracts due to deformation of the piezoelectric element, a nozzle that communicates with the cavity and ejects a liquid in response to increase and decrease of a pressure inside the cavity, and a temperature detection section that detects a temperature of the signal conversion section.
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