Charge pump load determination circuit
US6611166B2 · kind B2 · utility
5Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2001 |
| Grant date | Aug 26, 2003 |
| Priority date | — |
| Expiry date | Apr 23, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S20/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Circuit and method for determining the presence of a load in a circuit including on a charge pump. The circuit monitors the state of a pump signal indicative of the operating status of the charge pump. The circuit generates a signal indicating the presence or absence of a load. The signal is used to deactivate features of an associated device, thereby reducing the power consumption and extending the life of the power supply (e.g., battery) for the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.