AN2517 Freescale Semiconductor / Motorola, AN2517 Datasheet - Page 12

• Manufacturer Part Number: AN2517
• Description: 3-Phase Sine Wave Generator with Dead-Time Correction TPU Function Set
• Manufacturer: Freescale Semiconductor / Motorola

AN2517/D
12
3-Phase Sine Wave Generator with Dead-Time Correction TPU Function Set (3SinDt) MOTOROLA
Channel
Ampl
Theta
dTheta
currentA
currentB
currentC
T
prescaler
DT
MPW
Freescale Semiconductor, Inc.
For More Information On This Product,
Table 8. 3SinDt_top and 3SinDt_bottom parameter description
Parameter
Table 7. 3SinDt_top and 3SinDt_bottom Parameter RAM
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Parameter 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0
1
2
3
4
5
6
7
16-bit fractional
32-bit fractional
32–bit fractional
0 or 1
0 or 1
0 or 1
16-bit unsigned integer
16-bit unsigned integer
16-bit unsigned integer
16-bit unsigned integer
Parameters written by CPU
Format
LHtime_CB
HLtime_CB
Stator Reference Voltage Vector
Stator Ref. Voltage Vector angle
Stator Reference Voltage Vector
0 ... positive current on phase A
1 ... negative current on phaseA
0 ... positive current on phase B
1 ... negative current on phaseB
0 ... positive current on phase C
1 ... negative current on phaseC
PWM period in number of TCR1
The number of PWM periods per
Dead-time in number of TCR1
Minimum pulse width in number of
prsc_copy
amplitude,
positive values only!
range <–1, 1) corresponds to
<–180
angle increment
range <–1, 1) corresponds to
<–180
TPU cycles
reload of new values
TPU cycles
TCR1 TPU cycles. See
Performance
max_ht
Fchan
MPW
DT
°
°
, 180
, 180
Description
°
°
)
)
for details.