Phase lock loop controlled current mode buck converter
US8860393B2 · kind B2 · utility
3Cited by
10References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 8, 2013 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Mar 11, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A current mode buck converter has a power stage and a feedback stage. The power stage converts a higher power supply voltage level to a lower output voltage level. The feedback stage is connected with the power stage for controlling the levels of repetitive switching of an output current by phase and frequency locking a switching frequency of the output current to an external clocking signal. The feedback stage controls two levels of output current bounds by transforming a current error to a phase error to prevent error amplification such that an average output current remains constant at any duty cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.