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參數(shù)資料
| 型號： | AN2528 |
| 廠商： | 飛思卡爾半導(dǎo)體(中國)有限公司 |
| 英文描述： | Standard Space Vector Modulation TPU Function Set (svmStd) |
| 中文描述： | 空間矢量調(diào)制標準聚氨酯函數(shù)集（svmStd） |
| 文件頁數(shù)： | 12/28頁 |
| 文件大小： | 514K |
| 代理商： | AN2528 |
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AN2528/D
12
Standard Space Vector Modulation TPU Function Set (svmStd)
For More Information On This Product,
Go to: www.freescale.com
Figure 4. svmStd_top and svmStd_bottom state diagram
Minimum Pulse Width
The TPU cannot generate PWM signals with duty cycle ratios very close to 0%
or 100%. The minimum pulse width that the TPU can be guaranteed to correctly
generate is determined by the TPU function itself and by the activity on the
other channels. When the TPU function is requested to generate a narrower
pulse a collision can occur. To prevent this, the parameter
MPW
(minimum
pulse width) is introduced. The TPU functions svmStd_top and svmStd_bottom
limit the narrowest generated pulse widths to
MPW
. The CPU program should
check, and limit, the maximum amplitude of the Stator Reference Voltage
Vector before decomposition to
u
á
,
u
a
components. The maximum amplitude of
the Stator Reference Voltage Vector should be less than
MPW
(
1
If this is not the case, the TPU function will start to limit the minimum pulse
widths to
MPW
to prevent a collision, and the duty cycle ratio traces will be
deformed as shown on
Figure 5
.
INIT
STOP
LH_RLD
HL
LH
LH_C5
HL
C1234
flag0 = 1
HSR = 10
3-times
HSR = 11
flag0 = 0
flag0 = 1
4
th
-time
reload
no reload yet
- bottom
- bottom
- bottom
- top
- top
- top
Phase A
Phase B
Phase C
T
DT
)
+
F
Freescale Semiconductor, Inc.
n
.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AN2528D | Standard Space Vector Modulation TPU Function Set (svmStd) |
| AN2701 | PWM Generation with the HC08 Timer |
| AN2821 | eTPU Host Interface |
| AN2848 | Programming the eTPU |
| AN2897 | Using the eTPU Angle Clock |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AN25-28 | 制造商: 功能描述: |
| AN2528D | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Standard Space Vector Modulation TPU Function Set (svmStd) |
| AN2531 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Standard Space Vector Modulation with Dead-Time Correction ?XOR version TPU Function Set |
| AN2531/D | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Standard Space Vector Modulation with Dead-Time Correction ?XOR version TPU Function Set |
| AN2532 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Standard Space Vector Modulation ? 3 outputs version TPU Function Set (svmStd3) |
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