Method, apparatus and system for providing voltage supply for photoionization detector lamp
US11410845B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | May 22, 2020 |
| Grant date | Aug 9, 2022 |
| Priority date | — |
| Expiry date | Feb 4, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/44
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods, apparatuses, and systems for providing an alternating current (AC) voltage supply for a photoionization detector lamp from a direct current (DC) voltage source are provided. An example apparatus may include a DC voltage to DC voltage (DC/DC) converter circuitry, and a feedback circuitry that is electronically coupled to the DC/DC converter circuitry and converts a reference AC voltage to a feedback DC voltage for the DC/DC converter circuitry. In some examples, the feedback circuitry may be electronically coupled to a DC voltage to AC voltage (DC/AC) converting circuitry to obtain the reference AC voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.