Current limit control with current limit detector
US7672107B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 22, 2007 |
| Grant date | Mar 2, 2010 |
| Priority date | — |
| Expiry date | Oct 25, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0027
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Devices, such as mobile devices, may be exposed to short circuit and output overload events. To protect against such events, mobile devices typically include circuitry to limit currents so as not to exceed a pre-programmed current limit. Various embodiments of the present invention include devices and methods for detecting pre-programmed current limits and for limiting currents in response to such detection. In some embodiments, both the current limit detector and the current limit controller circuitry include scaled current switches. The scaling may be substantially similar between the programmed-current limit detector and the current limit controller circuitry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.