Piecewise linear control of the duty cycle of a pulse width modulated signal
US7029239B2 · kind B2 · utility
7Cited by
17References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 2003 |
| Grant date | Apr 18, 2006 |
| Priority date | — |
| Expiry date | Apr 25, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K7/20209
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system may include a PWM generator and control logic. The PWM generator is configured to generate a PWM signal having a duty cycle dependent on a duty cycle value generated by the control logic. The control logic is configured to generate the duty cycle value to have a piecewise linear relationship with temperature such that at least two of a plurality of linear segments defined by the piecewise linear relationship have different slopes. In some embodiments, the piecewise linear relationship may be continuous.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.