Current sensing bi-directional switch and plasma display driver circuit
US7403200B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 25, 2004 |
| Grant date | Jul 22, 2008 |
| Priority date | — |
| Expiry date | May 2, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/2965
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A bi-directional switch comprising first and second semiconductor switching devices, a current sensor connected in series with the switching devices, thereby forming a series circuit, a driver circuit controlling the on/off operation of the first and second switching devices such that the first and second switching devices are substantially simultaneously turned on and off, the driver circuit turning the first and second switching devices on in response to a control input and turning the first and second switching devices off when current in the current sensor substantially drops to near a zero current. A discharge sustain driver circuit employing the bi-directional switches for a plasma display panel (PDP) is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.