Voltage regulator incorporating a stabilization resistor and a circuit for limiting the output current
US6580257B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 24, 2002 |
| Grant date | Jun 17, 2003 |
| Priority date | — |
| Expiry date | Sep 24, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/575
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A voltage regulator includes a power transistor for providing an electrical current to a load circuit connected to an output of the regulator. The delivered current is limited by a limitation circuit within the regulator. A stabilization resistor is connected between the power transistor and the output of the regulator. The limitation circuit includes a fixed-voltage generator, and a comparator for comparing the voltage generated in the stabilization resistor by the output current of the regulator with the fixed voltage. The output of the comparator controls an adjustment transistor that limits the current delivered by the power transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.