High accuracy average output current control scheme for power current converter in critical DCM
US8089782B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 18, 2008 |
| Grant date | Jan 3, 2012 |
| Priority date | — |
| Expiry date | Mar 19, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0022
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
High accuracy average output current control scheme for power current converter in critical DCM is composed of the reference block to generate preset reference; the reference calculation block, based on the power current converter's power topology, the correspondent algorithm is calculated to convert the input reference into correspondent output; the state detecting block, the states of power current converter are detected and the detected signals are converted into the same signal format as one of output from reference calculation block; the error detector is used to detect the error between the outputs from reference calculation block and state detected block and to trigger power driver block to turn off the power switch in the power current converter as the error is cross over zero; the zero state detector is used to detect when the states of the power current converter are cross over zero and trigger power driver block to turn on the power switch in the power current converter; the power driver block is controlled with both the error detector and the zero state detector to drive the power switch in the power current converter; based on the correspondent algorithm, the output of…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.