24-pulse hexagon-type AC/DC static converter
US5068774A · kind A · utility
16Cited by
5References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 3, 1990 |
| Grant date | Nov 26, 1991 |
| Priority date | — |
| Expiry date | Dec 3, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/1552
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An AC/DC or DC/AC converter includes a single hexagon transformer with each side connected to opposite polarity DC terminals through two pairs of SCR devices gated in sequence synchronously with the frequency of the AC lines, gating in a pair lagging gating of the next SCR device in the adjoining pair, to create a 24-pulse output, while minimizing AC line harmonic contents, especially the 11th and 13th harmonics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.