Bandgap voltage regulator having low output impedance and wide bandwidth
US4348633A · kind A · utility
14Cited by
6References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 22, 1981 |
| Grant date | Sep 7, 1982 |
| Priority date | — |
| Expiry date | Jun 22, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S323/907
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
In a solid state temperature compensated voltage supply, a differentially coupled pair of transistors is employed to produce a first voltage having a negative temperature coefficient utilizing a unity gain negative feedback amplifier configuration. Means are provided for producing an adjustable voltage having a positive TC across an output resistor coupled to the output of the unity gain feedback amplifier which when added to the negative temperature coefficient voltage produces a net output voltage which has a zero temperature coefficient, low output impedance and high bandwidth independent of operating voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.