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參數(shù)資料
| 型號： | ST52T301P |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 8-Bit OTP/EPROM DuaLogic] MCUs WITH ADC, UART, TIMER, TRIAC & PWM DRIVER |
| 中文描述： | 8位檢察官辦公室/存儲器DuaLogic]與藝術(shù)發(fā)展局和UART，定時器，可控硅控制器 |
| 文件頁數(shù)： | 50/100頁 |
| 文件大?。?/td> | 497K |
| 代理商： | ST52T301P |
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and Figure 10.11), is introduced after each firing
pulse (see Figure10.7):
Maskingtime =(2^TCMSK*200+100) nS.
If TCMSK is 0 thenMasking time is 0.
In fact, to avoid the detection of electrical noise,
during the masking time no signal, coming from
MAIN1 and MAIN2, is taken into account.
Working in the II and III quadrant the peripheral
implementsthe followingprocedure:
1) Thefiring pulseis setto ”1”on therisingedge of
MAIN1.
2) The firing pulse is reset to ”0” after the time Tp
fixed by program.
3) The firing pulseis reset to ”0”for a timeequal to
the fixed maskingtime.
4) On the falling edge of MAIN2the firing pulse is
setto ”1”
5) The firing pulse is reset to ”0” after the time Tp
fixed by program.
6) The firing pulseis reset to ”0”for a timeequalto
the fixed maskingtime.
Following this approach it is possible to filter
electrical noise and oscillations on the signal
MAIN1 and MAIN2.
It ispossibleto generatea programmableInterrupt
in four differentways:
1) No Interrupt;
2) Interrupton the rising edge of the signal Tb.
3) Interrupton the fallingedge of the signal Tb.
4) Interrupton both the edgeof the signalTb.
TheInterruptis programmablebyusingtheregister
REG_CONF11(7:6),INTSL (seeTable 10.5).
(1.5)
(1)
(0.5)
0
0.5
1
1.5
(1.5)
(1)
(0.5)
0
0.5
1
1.5
V
A2-A1
Il
180
360
0
0
α
γ
Phase Angle
Current Flow Angle
L
N
Load
Il
A2
A1
Figure10.8.Phase Angle PartializationMode
10.3 PHASE ANGLE PARTIALIZATION WORK-
INGMODE
When REG_CONF10 (3:2) bits, MODE, are ”11”
the peripheral is programmed to work in PHASE
ANGLE PARTIALIZATION mode.
In this mode Triac is controlled each period of the
main voltage.The power transferredto the load is
proportional to the CURRENT FLOW ANGLE
γ
.
ThiskindofTriaccontrolissuitabletodrivetheTriac
TCMSK
0000
MaskingTime
0
μ
s
0.5
μ
s
0.9
μ
s
1.7
μ
s
3.3
μ
s
6.5
μ
s
12.9
μ
s
25.7
μ
s
51.3
μ
s
102.5
μ
s
204.9
μ
s
409.7
μ
s
819.3
μ
s
1638.9
μ
s
3276.9
μ
s
6553.7
μ
s
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
50/99
ST52T301/E301
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