Expanded input voltage range for switch-mode power supply in broadband network
US5973489A · kind A · utility
5Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 8, 1998 |
| Grant date | Oct 26, 1999 |
| Priority date | — |
| Expiry date | Dec 8, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a complex AC power distribution network (e.g. CATV), a switching mode power supply at a node, automatically operates in a first mode when the input AC power is at a lower potential and operates in a second mode when the input AC power is at a higher potential. A controller switches between modes of operation depending on the input voltage and on the current mode of operation to proved stable switching between modes which in turn provides stable output voltage from the power supply.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.