Inrush current start-up circuit for a television receiver
US4127875A · kind A · utility
6Cited by
0References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1976 |
| Grant date | Nov 28, 1978 |
| Priority date | — |
| Expiry date | Dec 15, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N3/18
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A start-up circuit for a television receiver includes a circuit for rectifying the AC line voltage and a filter for providing a smoothed DC voltage. When the receiver is turned on, an initial interval exists in which inrush current flows into the filter. A magnetically coupled winding of an inductor in the path of the inrush current develops an alternating current potential during the initial interval. This potential is rectified and provides a start-up operating voltage for the television receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.