Pulse width modulation dead time compensation method and apparatus
US7804379B2 · kind B2 · utility
6Cited by
6References
3Claims
0Family size
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Key dates
| Filing date | May 7, 2008 |
| Grant date | Sep 28, 2010 |
| Priority date | — |
| Expiry date | Feb 5, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/1515
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Dead time compensated complementary pulse width modulation (PWM) signals are derived from a PWM generator by first applying time period compensation to the PWM generator signal based upon the direction of current flow in an inductive load being controlled by the PWM generator. Dead time is then applied to the compensated PWM generator signal for producing complementary dead time compensated PWM signals for controlling power switching circuits driving the inductive load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.