Low critical voltage current mirrors
US6194956A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 29, 1999 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Apr 29, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/262
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A current mirror has an input node for receiving an input current and an output node for providing an output current. First, second and third transistors are provided with each transistor having first and second current path terminals and a control terminal. The control terminals of the first and second transistors are connected to each other. The first current path terminal of the first transistor and one of the current path terminals of the second transistor are connected to a power supply. The control terminal of the third transistor is connected to the input node. One of the first and second current path terminals of the third transistor are connected to the output node and the other of the first and second current path terminals of the third transistor are connected to the other of the first and second current path terminals of the second transistor. A resistive element is arranged between the input node and the second current path terminal of the first transistor. The control terminals of the first and second transistors are connected to a node between the resistive element and a second current path terminal of the first transistor. The resistive element is a transistor of th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.