Patent ID: 11881786
Assignee: ACCION SYSTEMS, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  F | IPC F  H

Claim 10:
11. A system comprising:
an emitter array;
an extractor grid; and
a power supply comprising:
a first power source configured to output a positive polarity direct current (DC) voltage;
a second power source configured to output a negative polarity DC voltage;
an assembly electrically coupled to at least one of the emitter array or the extractor grid, wherein the assembly is configured to amplify one of the positive polarity DC voltage or the negative polarity DC voltage;
a polarity selector coupled between the first and second power source and the assembly, the polarity selector operable to select whether the positive polarity DC voltage or the negative polarity DC voltage is amplified by the assembly;

wherein the extractor grid and the emitter array are operable at a relative voltage such that polarized drops of working material form and are expelled from emitters of the emitter array, wherein the relative voltage associated with a first subset of emitters of the emitter array comprise a positive polarity voltage and wherein the relative voltage associated with a second subset of emitters of the emitter array comprise a negative polarity voltage.