Fluid ejection device and fluid ejection printer with a power amplifier stopping section
US9028023B2 · kind B2 · utility
1Cited by
9References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2014 |
| Grant date | May 12, 2015 |
| Priority date | — |
| Expiry date | Oct 10, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/04596
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.