ELECTRONIC CONVERTER AND RELATED METHOD OF OPERATING AN ELECTRONIC CONVERTER

There is described an asymmetric electronic half-bridge converter (10a). The electronic converter includes a positive input terminal (102a) and a negative input terminal (102b) for receiving a DC voltage ( V in ), and two output terminals (104a, 104b) for providing a regulated output voltage (V out...

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Bibliographische Detailangaben
Hauptverfasser: PELLIZZARI, Mr. Giancarlo, LUCCATO, Mr. Daniele
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:There is described an asymmetric electronic half-bridge converter (10a). The electronic converter includes a positive input terminal (102a) and a negative input terminal (102b) for receiving a DC voltage ( V in ), and two output terminals (104a, 104b) for providing a regulated output voltage (V out ) or a regulated output current ( i out ). The electronic converter moreover includes a half-bridge (S 1 , S 2 ), a transformer (T) and a rectification and filter circuit (C RS , D, L o , C o ) . The half-bridge (S 1 , S 2 ) includes a first (S 1 ) and a second (S 2 ) electronic switch, connected in series between the two input terminals (102a, 102b), wherein a respective capacitance (C A1 , C A2 ) and a respective diode (D A1 , D A2 ) are associated with the first (S 1 ) and the second (S 2 ) electronic switch. A first terminal of the primary winding (T1) is connected to the intermediate point between the first (S 1 ) and the second (S 2 ) electronic switch, and a second terminal of the primary winding (T1) is connected via a first capacitor (C RP ) to the positive (102a) or negative (102b) input terminal. The rectification and filter circuit (C RS , D, L o , C o ) is connected between the secondary winding (T2) and the output terminals (104a, 104b). Specifically, the electronic converter includes a snubber circuit (30) on the primary side of the electronic converter (10a), wherein the snubber circuit (30) includes a second capacitor (C S ), an inductor (L S ), a first diode (D 1 ) and a second diode (D 2 ).