Switched-mode power converter with a current limit circuit
US10122260B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 25, 2016 |
| Grant date | Nov 6, 2018 |
| Priority date | — |
| Expiry date | Apr 25, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/156
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switched-mode power converter with current limit circuits for limiting the input current into the power converter and/or the output current is presented. The power converter contains a feedback loop for controlling the output voltage of the converter. A first voltage comparison unit within the feedback loop compares an output voltage with a reference voltage and outputs an error voltage based on the comparison. The power converter also contains a current control unit for limiting the input/output current. The current control unit contains a current comparison unit and a connection unit. The current comparison unit compares the input/output current with a current threshold and outputs an intermediate voltage based on the comparison. The connection unit connects the output of the current comparison unit and the output of the current comparison unit to the output of the first voltage comparison unit if the input/output current exceeds the current threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.