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The circuit–field coupling techniques, which could take the nonlinearity, time and space harmonics, core losses, and mechanical movement into consideration, have been widely applied in modern power system simulation. However, existing coupling schemes can deal with only one finite-element (FE) model connected to the external circuit. A new coupling method in which the generic machine model is established...
This paper proposes a family of simple, precise and lossless current balancing methods based on charge balancing for multi-output LED strings application. A capacitor is in series with the transformer secondary side to block the output DC voltage difference, and the output current balancing can be achieved by capacitor charge balancing. Compared to the conventional active current sharing technique...
A novel hybrid driving scheme for full-bridge synchronous rectified LLC resonant DC/DC converter is proposed in this paper. With the full-bridge type rectifier, the voltage stress of the synchronous rectifiers (SRs) is well clamped to the output voltage. Also the transformer structure is very simple due to only one secondary winding is needed. Therefore, the converter can utilize SRs with lower breakdown...
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