Method and voltage source for producing a smoothed voltage from three-phase current
US4320305A · kind A · utility
4Cited by
2References
4Claims
0Family size
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Inventor
Key dates
| Filing date | Feb 26, 1980 |
| Grant date | Mar 16, 1982 |
| Priority date | — |
| Expiry date | Feb 26, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/563
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and an apparatus for converting a three phase input into a constant voltage to a load, which voltage is substantially free of harmonics and ripples includes dividing the voltage to the load into two component voltages, with one component voltage comprising at least 80% of the total. The one component voltage is maintained constant and load independent. The voltage to the load is compared to a first reference voltage to obtain the difference therebetween and the value of the other component voltage is adjusted to minimize the difference. The two component voltages are added to form the voltage to the load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.