Voltage regulator
US7142044B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 16, 2004 |
| Grant date | Nov 28, 2006 |
| Priority date | — |
| Expiry date | Dec 9, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/575
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The present invention provides a voltage regulator capable of causing a large output current to flow during a heavy load operation, and of making a leakage current from output transistors small during a light load operation. The voltage regulator includes a plurality of output transistors and a circuit for changing connection of the output transistors to allow a W/L value of the output transistor to be changed. Moreover, the voltage regulator further includes an output current detection circuit for detecting an output current, and a circuit for changing connection of the output transistors based on the output current to allow a W/L value of the output transistors to be changed based on the output current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.