Reference voltage generating circuit and constant voltage circuit
US7426146B2 · kind B2 · utility
17Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2006 |
| Grant date | Sep 16, 2008 |
| Priority date | — |
| Expiry date | Dec 3, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C5/147
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A reference voltage generating circuit for producing a predetermined reference voltage at an output node includes a depletion-type n-channel field-effect transistor serving as a first field-effect transistor having one node thereof coupled to a power supply voltage, a second field-effect transistor having one node thereof coupled to another node of the first field-effect transistor and having a highly-doped n-type gate, and a third field-effect transistor having one node thereof coupled to another node of the second field-effect transistor, another node thereof coupled to a ground voltage, and a highly-doped p-type gate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.