TY - GEN

T1 - A New Method for Start-up of Isolated Boost Converters Using Magnetic- and Winding-Integration

A1 - Lindberg-Poulsen,Kristian

A1 - Ouyang,Ziwei

A1 - Sen,Gökhan

A1 - Andersen,Michael A. E.

AU - Lindberg-Poulsen,Kristian

AU - Ouyang,Ziwei

AU - Sen,Gökhan

AU - Andersen,Michael A. E.

PB - IEEE

PY - 2012

Y1 - 2012

N2 - A new solution to the start-up and low output voltage operation of isolated boost family converters is presented. By the use of integrated magnetics and winding integration, the transformer secondary winding is re-used during start-up as a flyback winding coupled to the boost inductor. The traditional added flyback winding coupled to the boost inductor is thus eliminated from the circuit, bringing substantial cost savings, increased efficiency and simplified design. Each subinterval of the converter operation is described through electrical and magnetic circuit diagrams, and the concept is extended to other isolated boost family topologies. The principle of operation is demonstrated with a 800W isolated boost prototype, and a 1600W primary parallel series secondary isolated boost converter. Efficiency measurements of both prototypes are presented, including measurements during both start-up and normal boost operation

AB - A new solution to the start-up and low output voltage operation of isolated boost family converters is presented. By the use of integrated magnetics and winding integration, the transformer secondary winding is re-used during start-up as a flyback winding coupled to the boost inductor. The traditional added flyback winding coupled to the boost inductor is thus eliminated from the circuit, bringing substantial cost savings, increased efficiency and simplified design. Each subinterval of the converter operation is described through electrical and magnetic circuit diagrams, and the concept is extended to other isolated boost family topologies. The principle of operation is demonstrated with a 800W isolated boost prototype, and a 1600W primary parallel series secondary isolated boost converter. Efficiency measurements of both prototypes are presented, including measurements during both start-up and normal boost operation

UR - http://www.apec-conf.org/

U2 - 10.1109/APEC.2012.6165841

DO - 10.1109/APEC.2012.6165841

SN - 978-1-4577-1216-6

BT - Annual IEEE Applied Power Electronics Conference and Exposition

T2 - Annual IEEE Applied Power Electronics Conference and Exposition

SP - 340

EP - 345

ER -