AN2649 datasheet(14/20 Pages) STMICROELECTRONICS

전자부품 데이터시트 검색엔진

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AN2649 데이터시트(PDF) 14 Page - STMicroelectronics

부품명	AN2649

상세설명	The electrical and thermal performances of switching converters are strongly

PDF	20 Pages

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제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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14 / 20 page

Booster diode

AN2649

14/20

The turn-on switching of the MOSFET is strongly influenced by the diode recovery so the

SiC diode leads to a reduction of the turn-on losses of the switch. The turn-on switching

waveforms for the silicon diode case highlight the current peak at turn-on as shown in

Figure 24. In Figure 25 this is evident as the SiC diode allows a strong reduction of the

current peak.

Figure 20.

Turn-off switch (with Si diode) -

Vin = 88 Vac

Figure 21.

Turn-off switch (with Si diode) -

Vin = 110 Vac

Figure 22.

Turn-off switch (with Si diode) -

Vin = 220 Vac

Figure 23.

Turn-off switch (with Si diode)

Vin = 264 Vac

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