System and method for power-efficient charging and discharging of a capacitive load from a single source
USRE42066E1 · kind E1 · reissue
Assignee
Inventors
Key dates
| Filing date | Jan 21, 2005 |
| Grant date | Jan 25, 2011 |
| Priority date | — |
| Expiry date | Jan 21, 2025 |
Classification
- Technology area (CPC —)General
Abstract
A system and method for efficiently charging and discharging a capacitive load from a single voltage source. The system includes a first switch for selectively connecting the voltage source to the load and a second switch for selectively providing a short across the load as may be common in the art. A particularly novel aspect of the invention resides in the provision of plural capacitive elements and a switching mechanism for selectively connecting each of the capacitive elements to the load whereby the load is gradually charged or discharged. In the illustrative embodiment, the switching mechanism includes a set of switches for selectively connecting each of the capacitive elements to the capacitive load and a switch control mechanism for selectively activating the switches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.