Active ionization control with interleaved sampling and neutralization
US8681470B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2012 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Aug 22, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01T23/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for optimizing performance of a static neutralizing power supply coupled to a controller and configured to provide an output to at least one ionizer includes, (a) during a first time period, sensing a current flow to the at least one ionizer, and (b) comparing, in the controller, an expected current flow to the sensed current flow. A difference between the expected and sensed current flows is proportional to a charge on an object to be neutralized proximate the at least one ionizer. The method further includes (c) adjusting, by the controller and based on the comparison, one or more properties of the output to the at least one ionizer to neutralize the charge on the object during a second time period following the first time period, and (d) periodically repeating steps (a)-(c) for successive first and second time periods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.