Controller including a sawtooth generator and method of operating the same
US7948280B2 · kind B2 · utility
18Cited by
73References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2006 |
| Grant date | May 24, 2011 |
| Priority date | — |
| Expiry date | Oct 20, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K4/50
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A sawtooth generator adapted to produce a sawtooth voltage, a method of operating the same, and a power converter employing the sawtooth generator and method. In one embodiment, the sawtooth generator includes a current source, coupled to a clock with a clock frequency, configured to produce a reference current proportional to the clock frequency. The sawtooth generator also includes an active network including a switch and a capacitor coupled to the current source and configured to provide a sawtooth voltage with a waveform slope produced across the capacitor substantially proportional to the reference current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.