Video display high voltage generator
US5587893A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 16, 1995 |
| Grant date | Dec 24, 1996 |
| Priority date | — |
| Expiry date | Jun 16, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/103
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This invention relates to a video display high voltage generator. In the generator, the primary coil, the high voltage coil and the multiple foil high voltage capacitors of the multiplier are sequentially formed into a trausformer assembly on the insulating tube. The stepup capacitors are formed through an electrostatic induction of the metallized foil in the assembly, the two groups of the stepup capacitors are wound on the high voltage coil in opposite directions so as to nullify the voltages magnetically induced thereon, forming the wound metallized foils into pure capacitors without causing electromagnetic interference on the other equipments. The transformer assembly is mounted on the center pole of the ferrite casing and accomodated in the space provided by the casing. The magnetic path is formed by the center pole bases and rim of the ferrite casing. Through the invented casing design, the component layout and the foil winding method, little clearance is required for isolation between the high voltage coil and the multiplier; the metallized foil and the casing rim, resulting in product miniturization. Replacement of the ferrite casing for the thermoplastics casing in a conve…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.