Magneto-optical recording circuitry for reversing a magnetic field
US5278818A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1991 |
| Grant date | Jan 11, 1994 |
| Priority date | — |
| Expiry date | Jun 17, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/662
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A circuit arrangement for reversing a magnetic field, in which an oscillator has a coil connected in parallel with a capacitor. First and second diodes are connected oppositely-poled in a series circuit, which is connected in parallel with the coil and capacitor of said oscillator. A first electronic controlled switch is connected in parallel with the first diode for bypassing this diode, whereas a second electronic controlled switch is connected in parallel with the second diode for bypassing thereof. Energy is supplied to the oscillator whenever the capacitor discharges. The junction of the series connected diodes is connected to the junction of the series-connected switches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.