Current mode boost converter with fixed PWM/PFM boundary
US8358118B2 · kind B2 · utility
26Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2010 |
| Grant date | Jan 22, 2013 |
| Priority date | — |
| Expiry date | Aug 26, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/156
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A current mode Boost converter is disclosed. The Boost converter operates in a pulse width modulation (PWM) mode or a pulse frequency modulation (PFM) mode. To prevent a load current with various probable magnitudes from varying a decision boundary between the PWM mode and the PFM mode, the Boost converter adaptively adjusts a trigger condition for the PFM mode according to a mean value of an inductor current or AC components of an inductor current of an inductor and a slope compensation current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.