Various embodiments of multi-phase transformers are disclosed. For example, a transformer includes primary windings, secondary windings and third windings. Primary windings, secondary windings and third windings may include sub windings coupled to form junctions. Primary windings are coupled at ends
Various embodiments of multi-phase transformers are disclosed. For example, a transformer includes primary windings, secondary windings and third windings. Primary windings, secondary windings and third windings may include sub windings coupled to form junctions. Primary windings are coupled at ends to form a delta configuration. Secondary windings are coupled to primary windings. Third windings are coupled to primary windings and secondary windings. Secondary windings and the third windings may be magnetically coupled to primary windings. The outputs at second ends of third windings are greater than the outputs at the second ends of secondary windings. In some embodiments, the outputs at adjacent second ends of the third windings are substantially equal. In other embodiments, a phase angle difference of outputs at adjacent second ends of third windings is substantially equal. In some embodiments, the phase angle difference of outputs at adjacent second ends of secondary windings is substantially equal.
대표청구항▼
What is claimed is: 1. A multi-phase transformer, comprising: a first group of windings having a plurality of primary windings and each primary winding having a first end and a second end; wherein the first end of each of the primary windings is coupled at a common junction to form a wye configurat
What is claimed is: 1. A multi-phase transformer, comprising: a first group of windings having a plurality of primary windings and each primary winding having a first end and a second end; wherein the first end of each of the primary windings is coupled at a common junction to form a wye configuration; and wherein each of the primary winding is configured to receive a phase of a multi-phase input voltage at the second end of each of the primary windings; a second group of windings having a plurality of secondary windings and each secondary winding has a first end and a second end; wherein each secondary winding is magnetically coupled to a primary winding; and a third group of windings having a plurality of third windings and each third winding has a first end and a second end; wherein each third winding is magnetically coupled to a primary winding from among the plurality of primary windings such that an output voltage at the second end of the third windings is higher than an output voltage at the second end of the secondary windings and the second end of the primary windings. 2. The transformer of claim 1, wherein a phase angle difference of the output voltage at two adjacent second ends of the third windings are substantially the same. 3. The transformer of claim 2, wherein the output voltage at the second end of the third windings are substantially equal and the output voltage at the second end of the secondary windings and the second end of the primary windings are substantially equal. 4. The transformer of claim 1, wherein a plurality of second end of the third windings are configured to couple to a rectifier circuit to rectify the output voltage at the second end of the third windings and output a rectified second voltage. 5. The transformer of claim 4, wherein the rectified second voltage is greater than a rectified output voltage derived from rectifying the input voltage. 6. The transformer of claim 4, wherein the second end of the primary windings and the secondary windings are configured to couple to a rectifier circuit to rectify an output at the second end of the primary windings and the secondary windings, and output a rectified first voltage that is less than the rectified second voltage. 7. The transformer of claim 6, wherein the rectified first voltage is substantially equal to a rectified output voltage derived from rectifying the input voltage. 8. The transformer of claim 2, wherein the phase difference is 60 degrees. 9. The transformer of claim 1, wherein the the first end of each of the secondary winding is coupled to the common junction of the primary windings; and the first end of each of the third winding is coupled to a second end of a secondary winding from among the plurality of secondary windings. 10. The transformer of claim 9, wherein the third windings includes a first sub-winding with two ends and a second sub-winding with two ends; wherein the first sub-winding and the second sub-winding is connected in series at one end; wherein the other end of the first sub-winding corresponds to the first end of the third winding; wherein the other end of the second sub-winding corresponds to the second end of the third winding; and a vector of the induced voltage in the first sub-winding is different than a second sub-winding such that a phase angle difference of the output voltage at two adjacent second ends of the third windings are substantially the same. 11. The transformer of claim 9, wherein a vector of the induced voltage in the third windings is such that a phase angle difference of the output voltage at two adjacent second ends of the third windings are substantially the same. 12. The transformer of claim 11, wherein a vector of the induced voltage in the primary windings and the secondary windings is such that a phase angle of the output voltage at the second end of the third winding is different than a phase angle of the output at the second end of the primary winding or the secondary winding to which the first end of the third winding is coupled to. 13. The transformer of claim 1, wherein all the secondary windings include a first sub-winding with two ends wherein one end of first sub-winding corresponds to the first end of the secondary winding; and a plurality of second sub-windings with two ends; another end of the first sub-winding and one end of some of the second sub-windings are coupled together; wherein the other end of each of the second sub-windings coupled to the first sub-winding is coupled to one end of at least one other second sub-winding at sub-junctions, wherein the other ends of the other sub-windings correspond to a plurality of second ends of the secondary winding; the first end of each of the third winding is coupled to either a second end of one of the primary windings or a sub-junction of one of the secondary windings; and the first end of each of the secondary winding is coupled to the second end of the third windings. 14. The transformer of claim 12, wherein a vector of the induced voltage in the third windings is such that a phase angle difference of the output voltage at two adjacent second ends of the third windings are substantially the same. 15. The transformer of claim 12, wherein a vector of the induced voltage in the secondary windings is such that a phase angle difference of an output voltage at two adjacent second ends of the second windings are substantially the same. 16. A multi-phase transformer, comprising: a first group of windings having a plurality of primary windings and each primary winding having a first end and a second end; wherein the first end of each of the primary windings is coupled at a common junction to form a wye configuration; wherein each of the primary windings includes one or more sub primary windings coupled in series, and a junction of two sub primary winding define an interior junction; and wherein each of the primary windings is configured to receive a phase of a multi-phase input voltage at the second end of each of the primary windings; a second group of windings having a plurality of secondary windings and each secondary winding has a first end and a second end; wherein each secondary winding is magnetically coupled to a primary winding; and a third group of windings having a plurality of third windings and each third winding has a first end and a second end; wherein each third winding is magnetically coupled to a primary winding from among the plurality of primary windings such that an output voltage at the second end of the third windings is higher than an output voltage at the second end of the secondary windings and the second end of the primary windings. 17. The transformer of claim 16, wherein a vector of the induced voltage in the third windings is such that the phase angle difference of the output voltage at two adjacent second ends of the third windings are substantially the same. 18. The transformer of claim 16, wherein a vector of the induced voltage in the secondary windings is such that the phase angle difference of the output voltage at two adjacent second ends of the second windings are substantially the same. 19. The transformer of claim 16, wherein the first end of each of the secondary winding is coupled to either the common junction of the primary windings or to the sub junction of one of the primary windings; and wherein the first end of each of the third winding is coupled to the second end of one of the primary windings, second end of one of the secondary winding or the sub junction of one or the primary winding. 20. The transformer of claim 19, wherein a vector of the induced voltage in the third windings is such that the phase angle difference of the output voltage at two adjacent second ends of the third windings are substantially the same. 21. The transformer of claim 16, wherein some of the third windings include a first sub-winding with two ends and a second sub-winding with two ends; wherein the first sub-winding and the second sub-winding is connected in series at one end and form a sub-junction; wherein the other end of the first sub-winding corresponds to the first end of the third winding; and wherein the other end of the second sub-winding corresponds to the second end of the third winding; wherein the first end of each of the secondary winding is coupled to either the sub junction of one of the primary windings or the sub-junction of one of the third windings; and wherein the first end of each of the third winding is coupled to either the second end of one of the primary windings or the sub junction of one of the primary windings. 22. The transformer of claim 21, wherein a vector of the induced voltage in the third windings is such that the phase angle difference of the output voltage at two adjacent second ends of the third windings are substantially the same. 23. The transformer of claim 21, wherein a vector of the induced voltage in the secondary windings is such that the phase angle difference of the output voltage at two adjacent second ends of the second windings are substantially the same. 24. The transformer of claim 16, wherein some of the secondary windings include a first sub-winding with two ends and a second sub-winding with two ends; wherein the first sub-winding and the second sub-winding are connected in series at one end to form a sub-junction; wherein the other end of the first sub-winding corresponds to the first end of the secondary winding; and wherein the other end of the second sub-winding corresponds to the second end of the secondary winding; wherein the first end of each of the secondary winding is coupled either to the sub junction of one of the primary windings or to the common junction; and wherein the first end of each of the third winding is coupled to either the second end of one of the primary windings or to the sub junction of one of the secondary windings. 25. The transformer of claim 24, wherein a vector of the induced voltage in the third windings is such that the phase angle difference of the output voltage at two adjacent second ends of the third windings are substantially the same. 26. The transformer of claim 24, wherein a vector of the induced voltage in the secondary windings is such that the phase angle difference of the output voltage at two adjacent second ends of the second windings are substantially the same. 27. The transformer of claim 16, wherein all of the secondary windings include a first sub-winding with two ends and a second sub-winding with two ends; wherein the first sub-winding and the second sub-winding are connected in series at one end to form a sub-junction; wherein the other end of the first sub-winding corresponds to the first end of the secondary winding; and wherein the other end of the second sub-winding corresponds to the second end of the secondary winding; wherein the first end of each of the secondary winding is coupled to the sub junction of one of the primary windings; and wherein the first end of each of the third winding is coupled either to the second end of one of the primary windings or to the sub-junction of one of the secondary windings. 28. The transformer of claim 27, wherein a vector of the induced voltage in the third windings is such that the phase angle difference of the output voltage at two adjacent second ends of the third windings are substantially the same. 29. The transformer of claim 27, wherein a vector of the induced voltage in the secondary windings is such that the phase angle difference of the output voltage at two adjacent second ends of the second windings are substantially the same. 30. The transformer of claim 16, wherein all of the secondary windings include a first sub-winding with two ends wherein one end corresponds to the first end of the secondary winding and a plurality of second sub-windings with two ends; wherein the other end of the first sub-winding is coupled to one end of the second sub-winding; wherein the other end of the second sub-winding is coupled to one end of another second sub-winding to form a sub-junction; and wherein the other end of the another second sub-winding corresponds to the second end of the secondary winding; wherein the first end of each of the secondary winding is coupled to the second end of one of the primary windings; and wherein the first end of each of the third winding is coupled either to the second end of one of the primary windings or to the sub junction of one of the secondary windings. 31. The transformer of claim 30, wherein a vector of the induced voltage in the third windings is such that the phase angle difference of the output voltage at two adjacent second ends of the third windings are substantially the same. 32. The transformer of claim 30, wherein a vector of the induced voltage in the secondary windings is such that the phase angle difference of the output voltage at two adjacent second ends of the second windings are substantially the same. 33. The transformer of claim 16, wherein each of the secondary winding has a plurality of second ends; wherein all of the secondary windings include a first sub-winding with two ends wherein one end corresponds to the first end of the secondary winding and a plurality of second sub-winding with two ends; wherein the other end of the first sub-winding and one end of all of the second sub-windings are connected together; and wherein the other ends of the second sub-windings corresponds to the plurality of second ends of the secondary winding; wherein the first end of each of the secondary winding is coupled to the common junction of the primary windings; and wherein the first end of each of the third winding is coupled either to the second end of one of the primary windings or to one of the second ends of one of the secondary windings. 34. The transformer of claim 33, wherein a vector of the induced voltage in the third windings is such that the phase angle difference of the output voltage at two adjacent second ends of the third windings are substantially the same. 35. The transformer of claim 33, wherein s vector of the induced voltage in the secondary windings is such that the phase angle difference of the output voltage at two adjacent second ends of the second windings are substantially the same. 36. The transformer of claim 16, wherein each of the secondary winding has a plurality of second ends; all of the secondary windings include a first sub-winding with two ends wherein one end corresponds to the first end of the secondary winding and a plurality of second sub-windings with two ends; wherein the other end of the first sub-winding and one end of some of the second sub-windings are coupled together; wherein the other ends of each of the second sub-windings that are coupled to the first sub-winding are each coupled to one end of at least one additional second sub-winding to form a sub-junctions; and wherein the other ends of the additional sub-windings correspond to the plurality of second ends of the secondary winding; wherein the first end of each of the secondary winding is coupled to the interior junction of one of the primary windings; and wherein the first end of each of the third winding is coupled either to the second end of one of the primary windings or to the sub-junction of one of the secondary windings. 37. The transformer of claim 36, wherein a vector of the induced voltage in the third windings is such that the phase angle difference of the output voltage at two adjacent second ends of the third windings are substantially the same. 38. The transformer of claim 36, wherein a vector of the induced voltage in the secondary windings is such that the phase angle difference of an output voltage at two adjacent second ends of the second windings are substantially the same. 39. The transformer of claim 16, wherein some of the third windings include a plurality of second ends; wherein some of the third windings include a first sub-winding with two ends wherein one end corresponds to the first end of the third winding and a plurality of second sub-windings with two ends; wherein the other end of the first sub-winding and one end of the plurality of second sub-windings are coupled together; and wherein the other ends of each of the second sub-windings correspond to the plurality of second ends of the third windings; wherein the first end of each of the secondary winding is coupled to the interior junction of one of the primary windings; wherein the first end of each of the third winding without the plurality of second ends is coupled to the second end of one of the primary windings; and wherein the first end of each of the third winding with the plurality of second ends is coupled to the second ends of the third windings without the plurality of second ends. 40. The transformer of claim 39, wherein a vector of the induced voltage in the third windings is such that the phase angle difference of the output voltage at two adjacent second ends of the third windings are substantially the same. 41. The transformer of claim 39, wherein a vector of the induced voltage in the secondary windings is such that the phase angle difference of an output voltage at two adjacent second ends of the second windings are substantially the same.
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이 특허에 인용된 특허 (12)
Paice Derek A. (Palm Harbor FL), Auto-connected hexagon transformer for a 12-pulse converter.
Traver John H. (La Habra CA) Peng Chung-Hang (Walnut CA) Massoudi Mohammad A. (Covina CA) Dauhajre Abraham A. (Altadena CA), Multiphase low harmonic distortion transformer.
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