Triangle wave generator and spread spectrum control circuit thereof
US7642820B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 2007 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | Feb 27, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K3/84
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A triangle wave generator with function of spreading frequency spectrum is provided. The triangle wave generator includes a switch control circuit, a current generator, an integrator, and a spread spectrum control circuit. The switch control circuit provides an internal clock and a switch control signal. The current generator is coupled to the switch control circuit and provides charge current according to the switch control signal. The integrator is coupled to the current generator and provides a triangle wave signal. The spread spectrum control circuit is coupled to the switch control circuit and the current generator for providing a current control signal according to the internal clock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.