Fluid ejection device and fluid ejection printer with a power amplifier stopping section
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United States of America Patent
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Nov 25, 2014
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N/A
app pub date -
Dec 11, 2013
filing date -
Jun 25, 2009
priority date (Note) -
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Abstract
A fluid ejection device includes: a modulator adapted to pulse-modulate a drive waveform signal forming a basis of a drive signal of an actuator to obtain a modulated signal; a digital power amplifier circuit adapted to power-amplify the modulated signal to obtain a power-amplified modulated signal; a low pass filter adapted to smooth the power-amplified modulated signal to obtain the drive signal; and a power amplification stopping section operating when holding a voltage of the actuator constant.
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