DC/DC voltage converter having a transformer

The described DC/DC voltage converter contains a transformer (UT) whose primary current is controlled by a switching transistor (T) and on whose secondary side one or more switches are arranged in the longitudinal paths and/or transverse paths. In order to keep the power loss on the switches as low...

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Bibliographische Detailangaben
1. Verfasser:	LOESEL,WALTER
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	The described DC/DC voltage converter contains a transformer (UT) whose primary current is controlled by a switching transistor (T) and on whose secondary side one or more switches are arranged in the longitudinal paths and/or transverse paths. In order to keep the power loss on the switches as low as possible, it is provided for power MOS field-effect transistors (FT1, FT2) in the inverse mode to be used as switches. In order to open and close the power MOS field-effect transistors (FT1, FT2), the transformer (UT) contains separate secondary coils (L4, L6) which are connected in the gate-source circuit of the power MOS field-effect transistors (FT1, FT2). Pulse-forming circuits (Zl1, Zl2) ensure that the power MOS field-effect transistors (FT1, FT2) are changed from the off-state into the on-state and from the on-state into the off-state at the desired point in time.