Linear voltage regulator and method of limiting the current in such a regulator
US7615977B2 · kind B2 · utility
9Cited by
4References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 2007 |
| Grant date | Nov 10, 2009 |
| Priority date | — |
| Expiry date | Jan 16, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/262
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A linear voltage regulator includes a voltage-regulating circuit that controls a power transistor connected to a load. A current-limiting loop circuit includes a common input/output node that is coupled to a control electrode of the power transistor. The loop senses whether a current representative of the current flowing through the power transistor is above a reference current, and in response thereto delivers a non-zero output current to the control electrode of the power transistor. Otherwise, the loop does not deliver any output current to the control electrode of the power transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.