, , () S, U I, :

                        (1)

= U I, ..

KM max=1. P=U I cosj , (1), KM = cosj , j - .

        1992 . () IEC-555-2, , . KM , 300 , , , , - .

        IEC-1000-3-2 ( IEC-555-2) . , . . , KM. , , .         .

        10, . , (DC/DC) . R. Uc U , , . , 10, - , , .

10 - ();
()

. 0,50,7. , , 50

. , () . .

. Mikro Linear 1989 ML4812 . , Simens, Unitrode Motorola. , .

       


, 1965 ( ) , . , - . , 1933 .? FAQ .


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