Limiting the continuous mode of a power converter
US7054171B1 · kind B1 · utility
10Cited by
11References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2000 |
| Grant date | May 30, 2006 |
| Priority date | — |
| Expiry date | Sep 28, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/33507
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention concerns a control circuit (20) of a switch (6) chopping a voltage supply of a primary winding of a power converter transformer, comprising means (45) for detecting the current in the switch in closed state after a predetermined time following each closure of said switch, and a comparator (40) of said current relative to a threshold (Ilim), the result of said comparator being taken into account for a predetermined time interval close to the beginning of a closing cycle of said chopping switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.