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UM0324 Datasheet(PDF) 40 Page - STMicroelectronics

Part # UM0324
Description  This user manual describes
PDF  105 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UM0324 Datasheet(HTML) 40 Page - STMicroelectronics

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Library functions
UM0324
40/105
With the following definitions for:
and
literature demonstrates that the space vector sector is identified by the conditions shown in
Table 1.
The duration of the positive pulse widths for the PWM applied on Phase A, B and C are
respectively computed by the following relationships:
Sector I, IV:
Sector II, V:
Table 1.
Sector identification
Y<0
Y>=0
Z<0
Z>=0
Z<0
Z>=0
X<=0
X<0
X<=0
X>0
Sector
V
IV
III
VI
I
II
alfa
V
T
U
∗
∗
= 3
α
beta
V
T
U
∗
=
β
β
U
X
=
2
β
α
U
U
Y
+
=
2
α
β
U
U
Z
−
=
2
Z
X
T
t
A
−
+
=
Z
t
t
A
B
+
=
X
t
t
B
C
−
=
2
Z
Y
T
t
A
−
+
=
Z
t
t
A
B
+
=
Y
t
t
A
C
−
=



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