Circuit for clamping current in a charge pump
US8860480B2 · kind B2 · utility
1Cited by
35References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2013 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Apr 30, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/0895
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit for clamping current in a charge pump is disclosed. The charge pump includes switching circuitry having a number of switching circuitry transistors. Each of first and second pairs of transistors in the circuit can provide an additional path for current from its associated one of the switching circuitry transistors during off-switching of that transistor so that a spike in current from the switching circuitry transistor is only partially transmitted through a path extending between the switching circuitry transistor and a capacitor of the charge pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.