Circuit for generating a sawtooth-shaped current
US4513228A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 5, 1982 |
| Grant date | Apr 23, 1985 |
| Priority date | — |
| Expiry date | Apr 5, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K4/62
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A circuit for generating a sawtooth-shaped current through a coil, a plurality of periodically operated switches being arranged in series, by means of which switches the coil is connected to a trace capacitor during the trace period. During the retrace period, the switches are made non-conductive substantially simultaneously and a supply source produces supply energy for replenishing losses. A retrace capacitor is arranged in parallel with each switch and the supply source is connected in parallel with a number of series-arranged switches which is smaller than the total number of switches. The trace voltage is higher than the voltage of the source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.