Efficiency increasing circuit for switching power supplies operating at low power levels
US4479174A · kind A · utility
28Cited by
3References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 3, 1982 |
| Grant date | Oct 23, 1984 |
| Priority date | — |
| Expiry date | Nov 3, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/33507
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit for use in a p.w.m. type power supply for increasing the efficiency thereof when the supply operates at low power levels. The circuit increases the efficiency by eliminating in a predetermined manner some of the p.w.m. pulses used to drive the power switching means of the supply.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.