MAGNETICALLY COUPLED UNREGULATED SINGLE-CYCLE CONSTANT VOLTAGE CONVERTER WITH ACTIVE CLAMPING Russian patent published in 2025 - IPC H02M3/335 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering, in particular to single-cycle constant voltage converters, and can be used in secondary power supply systems for conversion of constant output voltage level, galvanically separated from input constant voltage. Device comprises transformer 2, the beginning of primary winding 1 of which is connected to the positive pole of the input source of constant voltage, and the end of primary winding 1 through control key 3 to its negative pole. In parallel to primary winding 1 of transformer 2 there is an active clamping element composed of series-connected key 5 and capacitor 4. Beginning of first secondary winding 6 of transformer 2 is connected to the anode of rectifying diode 7, the cathode of which is connected to one of the outputs of capacitor 8, the second output of which is connected to the end of winding 6. Common point of connection of cathode of rectifier diode 7 with capacitor 8 is connected to end of second secondary winding 9, beginning of which is connected to first output of capacitor of filter 10 with parallel connected load 11, the second output of which is connected to the common point of connection of the beginning of first secondary winding 6 with the anode of rectifying diode 7.

EFFECT: formation of required level of constant output voltage from constant input voltage, reduction of static and dynamic losses.

1 cl, 1 dwg