High-frequency PWM voltage control
US6538484B1 · kind B1 · utility
9Cited by
5References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2002 |
| Grant date | Mar 25, 2003 |
| Priority date | — |
| Expiry date | Mar 18, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/822
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In a control system, with a defined clock rate C—a method and apparatus for generating a train of pulses whose mean level is proportional to a given number V, having N equispaced possible values, the pulses to be applied to a given low-pass process, the method comprising generating a train of constant-amplitude pulses at a rate that is considerably greater than C/N, when the width of each pulse is an integer multiple of a clock period, 1/C, and the widths of all pulses are not necessarily equal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.