Digital current share bus interface
US7772821B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2007 |
| Grant date | Aug 10, 2010 |
| Priority date | — |
| Expiry date | Apr 2, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/157
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A digital current share bus interface connects to a power module which provides a signal representative of its output current, and adjusts the module's output current in response to a control signal received from the interface. A data formatting module receives the output current signal and generates a digital word that varies with the current; the bits of the word are coupled to a current share bus. A comparator module receives digital words conveyed via the bus and generated by the data formatting module at respective inputs, and provides the control signal to the power module so as to adjust its output current to match the current value represented by the digital word on the bus. In a typical implementation, multiple power modules are coupled to the current share bus via respective interfaces, with the output currents of all the power modules connected in parallel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.