Power supply circuit
US3963974A · kind A · utility
1Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 29, 1975 |
| Grant date | Jun 15, 1976 |
| Priority date | — |
| Expiry date | Jan 29, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/3388
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power supply circuit, suitable for powering a magnetic bubble memory from a remote central office over the telephone subscriber loop, employs a multivibrator arranged to provide a constant a-c current output regardless of voltage and impedance variations on the line. A plurality of rectifier-capacitor circuits is responsive to the output of the multivibrator to supply different output voltages at levels higher than those available at the telephone station set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.