UM0324 datasheet(46/105 Pages) STMICROELECTRONICS

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UM0324 датащи(PDF) 46 Page - STMicroelectronics

номер детали	UM0324

подробное описание детали	This user manual describes

PDF	105 Pages

Scroll/Zoom	100%

производитель	STMICROELECTRONICS [STMicroelectronics]

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46 / 105 page

Library functions

UM0324

46/105

Case 2: DT+TN+TS < Phase A duty cycle < DT+TN+ 2TS + TH + TDMA

In this case, only one of the two conversions can be performed between the two Phase A

low side commutations. The other conversion is then synchronized depending on the

difference of duty cycles between Phase B and A (

ΔDutyA-B). In particular if

ΔDutyA-B <DT+TN+TS (as shown in the red circle in Figure 26), the sampling of Phase C

cannot be performed between Phase B low side switching on and Phase A high side

switching off (see Figure 27). Therefore, Phase C current sampling is performed before

Phase B high side commutation.

Figure 26.

DT+TN+TS< Low side Phase A duty cycle < DT+TN+2TS+TH+TDMA and

ΔDutyA-B<DT+TN+TS

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