Method of offset voltage control for bipolar ionization systems
US6826030B2 · kind B2 · utility
22Cited by
40References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2003 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | Sep 11, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05F3/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of offset voltage control for pulse mode ionization systems is provided wherein the ionization system has positive and negative power supplies. The duty cycle and overlap of outputs of the positive and negative power supplies are controlled, and an overlap that achieves a desired offset voltage is determined. The offset voltage and the corresponding overlap are stored in memory. The duty cycle and overlap of the outputs of the positive and negative power supplies are controlled to achieve the desired offset voltage based upon the stored offset voltage comparison.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.