Methods and circuits for a low input voltage charge pump
US8847671B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 11, 2013 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | May 25, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charge pump comprises, a plurality of branches each having serially-connected T-circuit cells, wherein each of the branches has a first end for receiving an input voltage and a second end for outputting a charge pump voltage, wherein each of the T-circuit cells comprises a first transistor, a second transistor, and a capacitor, wherein the first transistor and the second transistor of each of the T-circuit cells have a common drain, and wherein the gate of the first transistor of a certain one of the T-circuit cells of a certain branch is connected to a first branch and the gate of the second transistor of the certain one of the T-circuit cells of the certain branch is connected to a second branch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.