Current mode double-integration conversion apparatus
US7990305B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2007 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Jan 3, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04F10/105
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A double-integration signal processing apparatus for pulse width amplification and A/D conversion is provided. The current mode double-integration conversion apparatus includes: a current mode double-integration unit which integrates an input current in a predetermined time interval and outputs an integration voltage; a comparison unit which compares the integration voltage output from the current mode double-integration unit with a predetermined comparison voltage V k and outputs an comparison pulse signal; and a gate logic unit which performs a logic operation by using the comparison pulse signal of the comparison unit and an internal signal and outputs an logic operation pulse signal. Accordingly, the current mode double-integration conversion apparatus can be applied to various sensors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.