Method and apparatus for interleaved switching of track segments in a motion control system
US10256023B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2016 |
| Grant date | Apr 9, 2019 |
| Priority date | — |
| Expiry date | Jul 22, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P27/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power converter for a linear drive system having improved control of the switching devices to reduce the effects of localized heating within the power converter is disclosed. The linear drive system controls multiple movers along a track. Multiple coils are positioned adjacent to each other along the length of the track. Each coil is connected to a switching device within the power converter to energize and de-energize the coils. Pairs of adjacent switching devices are connected to coils that have at least additional coil located between the adjacent switching devices. Thus, adjacent switching modules do not conduct the same level of current and those switching modules that are required to conduct elevated levels of current are spaced apart from each other within the power converter. Consequently, the heat generated as a result of the elevated current and increased switching is similarly spread out within the power converter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.