Temperature compensating circuit, temperature compensating logarithm conversion circuit and light receiver
US6426495B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 26, 2000 |
| Grant date | Jul 30, 2002 |
| Priority date | — |
| Expiry date | Dec 18, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/69
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A temperature compensating circuit includes a first circuit network 1 between an inverting input terminal of an operational amplifier 13 and an output terminal of the operational amplifier 13, and a second circuit network 2 between the inverting input terminal of the operational amplifier 13 and a reference potential. At least one of the first circuit network and the second circuit network is made of an arrangement containing a plurality of series-connected thermistor/resistor pairs in which the thermistors are connected parallel to the resistors, and the temperature compensating circuit compensates a temperature-dependent signal which is inputted into a positive phase input terminal of the operational amplifier 13, and outputs the temperature-compensated signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.