Apparatus for distributing DC bus power and control power over common conductors in a distributed DC bus system
US11936182B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2022 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Jun 28, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2201/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system for distributing DC bus voltage and control power to multiple motors includes a rectifier front end supplying a DC bus voltage and a DC control voltage. Both the DC bus voltage and the DC control voltage are distributed via a common set of conductors. Diodes are operatively connected between the DC control voltage and the common set of conductors. The diodes allow forward conduction of the DC control voltage and distribution of control power to distributed devices when the DC bus voltage is not present. Once the DC bus voltage is present, the diodes block conduction of the DC control voltage. Each of the distributed devices are configured with an internal power supply that is operative to generate an internal control voltage from either the DC control voltage or the DC bus voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.