Adaptive switching speed control for pulse width modulation
US6476683B1 · kind B1 · utility
16Cited by
6References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2000 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Jul 25, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A pulse width modulation apparatus and method operates a switch at one of four slew rates to minimize electromagnetic and harmonic interference or switching losses. One of the four slew rates is selected based on a detected over-current condition, with or without a start up operation condition, an over-temperature condition and a normal working mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.