Current mirror circuit
US7652525B2 · kind B2 · utility
0Cited by
2References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 22, 2008 |
| Grant date | Jan 26, 2010 |
| Priority date | — |
| Expiry date | Feb 22, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/262
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A current mirror circuit has a first MOS transistor to which an input current is supplied. The first MOS transistor has a gate formed of polysilicon. A second MOS transistor has a gate formed of polysilicon and connected directly to the gate of the first MOS transistor via a polysilicon layer for producing an output current whose magnitude is a magnitude of the input current multiplied by a current mirror ratio. A fuse has one terminal connected to a gate portion between the gate of the first MOS transistor and the gate of the second MOS transistor and another terminal that is grounded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.