The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 17, 2019
Filed:
Jul. 20, 2018
Xerox Corporation, Norwalk, CT (US);
David L. Knierim, Wilsonville, OR (US);
XEROX CORPORATION, Norwalk, CT (US);
Abstract
An energy recovery circuit in a print head includes at least one waveform rail, an array of piezoelectric actuators selectively electrically connectable to the waveform rail, the piezoelectric actuators creating a capacitive load, at least one pseudo jet capacitive load, selectively coupled to the waveform rail, depending upon how many piezoelectric actuators are connected to the waveform rail, and a first inductor coupled to the waveform rail, wherein the first inductor forms a resonant circuit with a waveform rail capacitance and returns energy to a power supply. A method of recovering energy in a print head includes providing a waveform to an array of piezoelectric actuators that are selectively electrically connectable to a waveform rail, selectively coupling at least one pseudo-jet load to the waveform rail, depending upon how many piezoelectric actuators are connected to the waveform rail, and using an inductor to form a resonant circuit with a waveform rail capacitance and to return energy to a power supply.