Voltage reference source and method for generating a reference voltage
US9753482B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2015 |
| Grant date | Sep 5, 2017 |
| Priority date | — |
| Expiry date | Nov 12, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/24
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A voltage reference source includes a source block, a first resistor having a first terminal coupled to a first terminal of the source block, a reference output for providing a reference voltage, and a first and a second mirror transistor forming a first current mirror. The first mirror transistor couples a second terminal of the source block to a supply voltage terminal and the second mirror transistor couples the reference output to the supply voltage terminal. A series connection of a second resistor and a diode is arranged between the reference output and the first terminal of the first resistor. A mirror current flows through the second mirror transistor and the series connection to the first terminal of the first resistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.