參數(shù)資料
型號: ST72141K2B3/XXX
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP32
封裝: 0.400 INCH, PLASTIC, SDIP-32
文件頁數(shù): 96/133頁
文件大小: 2615K
代理商: ST72141K2B3/XXX
Obsolete
Product(s)
- Obsolete
Product(s)
ST72141K2
65/133
MOTOR CONTROLLER (Cont’d)
Figure 41. Step Behaviour of one Output Channel MCO[n] in Current / Sensorless Mode
Figure 42. Step Behaviour of one Output Channel MCO[n] in Current / Sensor Mode
C
D
C
M
o
de
Current
(V0C1=1)
O
E
[1
:0
]
O
[5
:0
]
X
Ev
en
(0)
(Current Mode without polarity effect, sensorless mode: SR=0)
Demagnetization
Step
E
ve
n
t
Off
(0)
On
(1)
Odd
(1)
1
0
Toff
xx
x
11
10
01
1
0
11
10
00
01
x
xx
OS1
OS0
OS2
PWM behaviour before D
0
1
On Even Channels
On Odd Channels
OS[1:0]
PWM behaviour after D
00
01
On Even Channels
On Odd Channels
10
11
Alternate Odd/Even
On all active Channels
1
0
1
0
1
0
1
0
1
0
C
M
o
de
Current
(V0C1=1)
O
E
[5:
0
]
O
[5
:0
]
X
Even
(0)
(Current Mode without polarity effect, sensor mode: SR=1)
Step
E
ve
n
t
Off
(0)
On
(1)
Odd
(1)
xx
11
10
01
11
10
00
01
xx
OS1
OS0
1
0
OS2
Not used
-
OS[1:0]
PWM behaviour after D
00
01
On Even Channels
On Odd Channels
10
11
Alternate Odd/Even
On all active Channels
1.25us
In sensor mode, there is no demagnetisation event and the PWM behaviour is the
same for the complete step time.
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