Switched-mode power supply regulation
US7825645B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 6, 2007 |
| Grant date | Nov 2, 2010 |
| Priority date | — |
| Expiry date | May 3, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/32
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention concerns a circuit for detecting an overload in a load supplied by a switched-mode power supply, comprising: a first comparator of a first voltage based on the supply voltage of the load relative to a first threshold, supplying a regulating signal to a pulse generator controlling the switched-mode power supply; a second comparator of a second voltage relative to a second threshold, supplying a signal indicating the presence of an overload; and means for automatically controlling said second voltage by a third threshold lower than the second and higher than the first, and for deactivating the second comparator as long as said automatic control is maintained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.