18736682. SWITCHING POWER SUPPLY DEVICE (TDK CORPORATION)
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SWITCHING POWER SUPPLY DEVICE
Organization Name
Inventor(s)
SWITCHING POWER SUPPLY DEVICE
This abstract first appeared for US patent application 18736682 titled 'SWITCHING POWER SUPPLY DEVICE
Original Abstract Submitted
Provided is a switching power supply device in which coefficients of coupling a plurality of secondary windings to a primary winding of a transformer can be made equal, and current imbalance can be eliminated. The switching power supply device includes a planar type transformer, wherein a bridge, in which a plurality of switch elements are connected in series, and a primary winding is provided on a primary side of the transformer, and the switch elements include the switch elements controlled by a first on time, and the switch elements controlled by a second on time different from the first on time.