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AN4013 bảng dữ liệu(PDF) 25 Page - STMicroelectronics

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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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AN4013 bảng dữ liệu(HTML) 25 Page - STMicroelectronics

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AN4013
Advanced features for motor control
36
Note:
1
Dead time insertion is enabled by setting both CCxE and CCxNE bits, and the MOE bit.
2
When only OCxN is enabled (CCxE=0, CCxNE=1), it is not complemented and becomes
active as soon as OCxREF is high. For example, if CCxNP=0 then OCxN=OCxRef. On the
other hand, when both OCx and OCxN are enabled (CCxE=CCxNE=1) OCx becomes
active when OCxREF is high, whereas OCxN is complemented and becomes active when
OCxREF is low.
Table 4. Advanced timer configurations
Control bits
Output state
Typical use
MOE
OSSI
OSSR
OCxE OCxNE
OCx output
state
OCxN output
state
1
x
0
0
0
Output disable
Output disable
General purpose
x
0
0
1
Output disable
OCxREF
+ Polarity
x0
1
0
OCxREF
+ Polarity
Output disable
x0
1
1
OCxREF
+ Polarity
+ Deadtime
(not OCxREF)
+ Polarity
+ Deadtime
Motor control
(sinewave)
x
1
0
0
Output disabled Output disabled
Motor control
(6-steps)
x
1
0
1
Off-state
OCxREF
+ Polarity
x1
1
0
OCxREF +
Polarity
Off-state
x1
1
1
OCxREF
+ Polarity
+ Deadtime
(not OCxREF)
+ Polarity
+ Deadtime
Motor control
(sinewave)
MOE
OSSI
OSSR
OCxE OCxNE
OCx output
state
OCxN output
state
Comments
0
0x0
0
Output disable
Outputs
disconnected
from I/O ports
0x0
1
0x1
0
0x1
1
1x0
0
Off-state
(outputs are first forced with their
inactive level then forced to their
idle level after the deadtime.)
All PWMs OFF
(low Z for safe
stop)
1x0
1
1x1
0
1x1
1



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