Voltage and temperature stabilized constant current source circuit
US4292583A · kind A · utility
7Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 31, 1980 |
| Grant date | Sep 29, 1981 |
| Priority date | — |
| Expiry date | Jan 31, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/22
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A constant current source circuit includes a single differential amplifier having both voltage and temperature stabilization circuits. The voltage and temperature stabilization circuits operate on a feedback principle, each receiving an input from the differential amplifier, and each in turn providing a signal back to the differential amplifier to provide the desired stabilization. The resulting circuit is particularly adapted for use in battery-powered equipment, where substantial variations in both temperature and operating voltage are likely to occur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.