Read-out amplifier for photovoltaic detector
US4794247A · kind A · utility
19Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 18, 1987 |
| Grant date | Dec 27, 1988 |
| Priority date | — |
| Expiry date | Sep 18, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/082
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A read-out amplifier (200) for a photovoltaic detector (201) employs an integrating amplifier (203) with capacitor feedback (230 ) during a self-calibrating active load (205, 240) to minimize debiasing of the photovoltaic detector during its operation. The self-calibrating active load reduces the effect of noise and threshold nonuniformities of the semiconductor devices (202, 203, 204, 205) used in the read-out amplifier circuitry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.