Reference current generating circuit
US8148970B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2010 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | Oct 20, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/30
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A reference current generating circuit includes first and second standard current generating circuits to generate first and second standard currents, respectively and first and second trimming circuits to generate first and second reference circuits by trimming the standard current values outputted from the standard current generating circuits. The second standard current generating circuit operates for a part of an operation period of the first standard current generating circuit. The value of the first reference current is compared with a value of the second reference current, and controlled so as to approach the value of the second reference current by a trimming controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.