Regulated switching mode power supply
US4209826A · kind A · utility
49Cited by
11References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 14, 1978 |
| Grant date | Jun 24, 1980 |
| Priority date | — |
| Expiry date | Jun 14, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S323/902
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switching mode power supply characterized by an output in the forward conversion mode and a separate output in the flyback mode whereby a device having variable power requirements in one aspect of its operation, and a stable power requirement another aspect of its operation may be powered without interference as between the two sources of power. The flyback power output is monitored for voltage regulation, regulation being achieved by a constant-off-time variable-on-time switch. The power supply likewise includes novel protective circuitry to shut it down in the event of excessive voltage or current therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.