Differential current signal circuit
US8614593B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2013 |
| Grant date | Dec 24, 2013 |
| Priority date | — |
| Expiry date | Apr 9, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45654
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A differential current signal circuit is described which includes a voltage to differential current converter circuit that generates a differential pair of current output signals in response to receiving a voltage input signal, where the differential pair of current output signals are linearly proportional to the voltage input signal within a voltage operating range from a minimum operating voltage to a maximum operating voltage. The differential pair of current output signals are linear over a wide range of voltage input signals. A correction circuit is included which eliminates voltage offsets in the voltage operating range due to process and temperature variations. The correction circuit also provides the capability to adjust the minimum operating voltage, and eliminates variations in the minimum operating voltage due to process and temperature variations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.