Current mirror circuit
US5461343A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 13, 1994 |
| Grant date | Oct 24, 1995 |
| Priority date | — |
| Expiry date | Jul 13, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/343
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A current mirror circuit and method of generating an output current at an output node which is proportional to an input current applied to an input node. The circuit operates to receive the input current and develops a reference voltage. The reference voltage is converted to a reference current which is proportional to the input current and is applied to a high impedance node. A feedback network is coupled to said high impedance node and includes an output device driven by the high impedance node and which provides the output current to the output node. The feedback network is operable for forcing current generated by said feedback network to the high impedance node to be equal to the reference current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.