Digital pulse frequency/pulse amplitude (DPFM/DPAM) controller for low-power switching-power supplies
US7710209B2 · kind B2 · utility
3Cited by
12References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2008 |
| Grant date | May 4, 2010 |
| Priority date | — |
| Expiry date | Aug 20, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K9/06
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A digital controller for dc-dc switching converters can operate under light load conditions. The controller can be suitable for the use in switch-mode power supplies providing regulated output voltage for handheld devices and other low-power electronics. To create long time intervals, compared to the propagation time of digital logic a DPFM/DPAM can use a ring oscillator with two sets of delay cells and two signals racing around the ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.