Multipath current source switching device
US9819195B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2013 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | Jan 29, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure discloses a multipath current source switching device, including a switching control unit, N current paths, and N loads. Each current path is formed by a constant current source circuit and a switching circuit. One terminal of a first load is coupled to a load power supply, and the other terminal of the first load is coupled to an output terminal of a constant current source circuit of a first current path and one terminal of a second load; one terminal of an ith load is coupled to the other terminal of an (i−1)th load and an output terminal of a constant current source circuit of an ith current path; and the switching control unit controls an output current of a corresponding constant current source circuit through a corresponding switching circuit. When the circuits are switched, an output voltage of a switching circuit of a current path to be switched off is decreased to zero according to a preset voltage variation quantity, and an output voltage of a switching circuit of a current path to be switched on is increased to a highest operating voltage according to the preset voltage variation quantity, such that a current on a load does not exceed a preset cur…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.