Dynamic load matching charge pump for reduced current consumption
US9154027B2 · kind B2 · utility
17Cited by
185References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2013 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Dec 9, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K3/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charge pump is regulated based up its output level. The regulation circuitry adjusts the frequency of the pump's clock based on feedback from pump's output. The pump's clock signal is generated by an oscillator whose frequency depends on a reference voltage level. The reference voltage level is dependent upon a regulation signal. In an example, a transistor whose gate is controlled by the regulation level is part of a series of elements in voltage divider, where the reference value is taken from a node of the divider.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.