Device for supplying voltage to the cathode of a mass spectrometer
US9530634B2 · kind B2 · utility
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6References
9Claims
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Key dates
| Filing date | Feb 22, 2013 |
| Grant date | Dec 27, 2016 |
| Priority date | — |
| Expiry date | Feb 22, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A simplified device for voltage supply of the cathode of a mass spectrometer comprises a push-pull transformer, wherein, apart from the normal rectifier diodes (7, 9), a controlled rectifier (8, 10) is provided. The gate of the first transistor (8) is connected to the second output (30), and the gate of the second transistor (10) is connected to the first output (32) of the transformer. A voltage supply device, consisting of at least one voltage multiplier, is connected via capacitors (13, 14, 15) to the output of the transformer and feeds, amongst others, the emission current measurement device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.