Reference current output device with improved temperature characteristics, and a corresponding reference current output method
US8878512B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 2, 2011 |
| Grant date | Nov 4, 2014 |
| Priority date | — |
| Expiry date | Dec 25, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/30
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A reference current output device and reference current output method that may adjust a reference current while maintaining a temperature gradient. In the reference current output device and reference current output method of the present invention, a reference current is outputted by a reference voltage and current output circuit, a reference voltage outputted from the reference voltage and current output circuit is converted to an adjustment current and outputted by a conversion and output circuit, the adjustment current is superimposed with the reference current and a superimposed current is outputted by a superimposition and output section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.