Superconducting current detecting circuit employing DC flux parametron circuit
US4866373A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Dec 28, 1988 |
| Grant date | Sep 12, 1989 |
| Priority date | — |
| Expiry date | Dec 28, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S505/845
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A superconducting current detecting circuit which comprises a reference current generation circuit for generating a reference current and a DC flux parametron circuit for comparing an input current to be detected with the reference current to thereby produce pulses in synchronism with an input excitation signal, the number of the pulses being varied in accordance with a difference between the input current and the reference current, the pulses having positive or negative values depending on the polarity of the difference, the reference current generation circuit having means for increasing or decreasing the reference current by a quantity corresponding to the number of the pulses in response to the polarity of the pulses so that reference current generation circuit produces the reference current which agrees with the input current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.