TOTAL LOSSES

due to the diode

P = P1+ P2+ P3+ P4+ P5

Watts

SWITCHING

LOSSES

in the diode

CONDUCTION

LOSSES

in the diode

SWITCHING

LOSSES

in the transistor

due to the diode

REVERSE

LOSSES

in the diode

The TURBOSWITCH

provide the lowest overall power losses in any

Freewheel Mode application (see fig. A) consider-

ing both the diode and the companion transistor,

thus optimizing the overall performance in the end

application.

The way of calculating the power losses is given

below :

APPLICATION DATA

Fig. A : "FREEWHEEL" MODE

DIODE:

TURBOSWITCH

IL

LOAD

TRANSISTOR

SWITCHING

tp

T

F=1/T

δ = tp/T

VR

STTA306B

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