Electronically switchable power source
US4665323A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 1984 |
| Grant date | May 12, 1987 |
| Priority date | — |
| Expiry date | Oct 25, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A DC power source is capable of automatically adapting to either a 120 or 240 VAC input and of providing a single regulated output range for either of the AC voltage levels provided thereto. The power source detects the AC input voltage and automatically doubles the lower voltage while allowing the higher rectified voltage to pass through. The power source includes an electronic switching arrangement responsive to the input voltage level for automatically doubling the lower AC input voltage when detected as well as timing circuitry to allow for transitory fluctuations in the input voltage level while maintaining a level DC output voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.