Power converter control to avoid imbalance and transformer saturation
US9178441B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2014 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | May 16, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switched-mode power conversion circuit can include a switch control circuit including switch control outputs coupleable to switches included in a bridge network, the switches controllably coupling power input nodes to an isolation transformer according to switch states established by the switch control circuit. A current monitoring circuit can be coupled to the isolation transformer, the current monitoring circuit including an output indicative of a current flowing through a winding of the isolation transformer. A sampling circuit can be coupled to the output of the current monitoring circuit to obtain information indicative of a first current peak during a first sampling duration corresponding to a first current polarity established by the bridge network and a second current peak during a second sampling duration corresponding to an opposite second current polarity established by the bridge network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.