Dither amplitude correction for constant current drivers
US7154326B2 · kind B2 · utility
4Cited by
17References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2005 |
| Grant date | Dec 26, 2006 |
| Priority date | — |
| Expiry date | Jul 8, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1555
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In satisfying the above need, as well as overcoming the enumerated drawbacks and other limitations of the related art, the present invention provides an improved switched driver circuit. As disclosed above, there is a need to compensate for the high impedance load characteristics in certain implementations of hysteretic switching constant current drivers. The switching waveform of switching constant current driver circuits may be modified in such a way that retains the important dither characteristics and improves system level performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.