Power supply providing constant power output
US4245294A · kind A · utility
8Cited by
5References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 29, 1978 |
| Grant date | Jan 13, 1981 |
| Priority date | — |
| Expiry date | Dec 29, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power supply for developing substantially constant average power in a variable resistance load (18) from an alternating polarity source (11) comprises an AC portion including serially connected capacitor means (12), and a DC portion including rectifying means (20) for providing a polarized signal to load resistance (18) and inductor means (17) for maintaining a charging current through a path including capacitor means (12). The constant average power mode obtains when the range of values of load resistance (18) is less than a network parameter determined from the frequency of source (11) and value of capacitor means (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.