Liquid ejecting apparatus, drive circuit, and head unit
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United States of America Patent
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Jan 9, 2018
Issued Date -
N/A
app pub date -
Oct 7, 2016
filing date -
Oct 26, 2015
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Abstract
A liquid ejecting apparatus includes an ejecting unit that includes a piezoelectric element which is displaced by application of a drive signal and ejects liquid according to displacement of the piezoelectric element; a comparison unit that includes a first comparator and a second comparator, receives an input signal and a feedback signal based on the drive signal, and outputs a first control signal and a second control signal; a pair of transistors that is configured by a first transistor which is controlled based on the first control signal and a second transistor which is controlled based on the second control signal, and outputs the drive signal from a coupling point of the first transistor and the second transistor; an output capacitor that has one terminal coupled to the coupling point; and a differentiation and integration circuit.
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