Power-efficient, pulsed driving of capacitive loads to controllable voltage levels
US6985142B1 · kind B1 · utility
5Cited by
79References
41Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 3, 1999 |
| Grant date | Jan 10, 2006 |
| Priority date | — |
| Expiry date | Sep 3, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/023
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Power-efficient, pulsed driving of capacitive loads to controllable voltage levels, with particular applicability to LCDs. Energy stored in a portion of the capacitive load is recovered during a recovery phase. Time-varying signals are used to drive the load and to recover the stored energy, thus minimizing power losses, using processes named adiabatic charging and adiabatic discharging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.