Automatic voltage regulator with optical feedback
US3952242A · kind A · utility
20Cited by
6References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 30, 1972 |
| Grant date | Apr 20, 1976 |
| Priority date | — |
| Expiry date | Jun 30, 1992 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S323/902
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An automatic voltage regulator employing an optical feedback system, in which a luminous element, whose intensity varies in response to the variation in a regulated voltage, illuminates a photosensitive element which generates a feedback signal responsive to intensity of light. More precise voltage regulation is possible. Furthermore, a "soft-start" circuit is provided which can arbitrarily select a rising time of a regulated voltage to a predetermined magnitude, starting always from a predetermined phase angle of the voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.