Systems, methods, and apparatuses for complementary metal oxide semiconductor (CMOS) driver circuits using shared-charge recycling charge pump structures
US8334708B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2011 |
| Grant date | Dec 18, 2012 |
| Priority date | — |
| Expiry date | Jul 29, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/0019
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Example driver circuits can utilize shared-charge recycling charge pump structures. In particular, an example shared-charge recycling process may be applied to a clock buffer and charge transfer cells of the charge pump in a driver circuit. An example recycling process may include recycling of shared charges between the capacitors/capacitances in the charge transfer cells. An example recycling process may use the charges in one or more capacitors to charge one or more other capacitors before the charges are wasted or otherwise discharged to ground. Such recycling may significantly reduce the power consumption of the charge pump while still providing a high output voltage level, according to an example embodiment of the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.