Charge pump
US9954437B2 · kind B2 · utility
0Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2014 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | Oct 9, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0041
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
One charge pump includes at least one delay element, a number of inverters, and a flip flop coupled in series, with an output of one inverter coupled in a feedback loop to one of the delay elements. The charge pump monitors a first supply voltage level, and turns off an oscillator of the charge pump when the first supply voltage drops below a certain level. This is accomplished in one embodiment by monitoring a first supply voltage level supplied to a charge pump, and turning off an oscillator of the charge pump when the first supply voltage drops below a certain level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.