Regulated deflection circuit
US4214189A · kind A · utility
2Cited by
2References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 20, 1978 |
| Grant date | Jul 22, 1980 |
| Priority date | — |
| Expiry date | Nov 20, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N3/185
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An input transformer primary winding is series coupled with an unregulated voltage source and a bidirectional switch. The secondary winding is coupled to a deflection circuit switch through a second switch. The transformer leakage inductance serves as the source input impedance. The transformer windings and second switch are so polarized as to provide for simultaneous conduction of the bidirectional and second switches. Regulation is achieved by varying the turn-on instant of the bidirectional switch within a deflection cycle. The bidirectional switch is commutated off by a resonant circuit coupled to the switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.