TCL group Action List

1

???PWM???NCP1207?40-100W?????????

2
.?????PWM???NCP1207??? .?????(DSS). .??????. .????
,???????. .?????,????? .???????,??????ON/OFF????.
.??????????????. .???????. .??????????. .???????.
.???????????????.


3
????NCP1207????????????? ?????PWM????
?NCP1207??????????????????????????? ??????????????
?????????DVD?????? ??????? ??,??NCP1207????????,??
??????????????, ???????????,????????????70,??????
?????????,???????????? NCP1207???8PIN??PWM
IC,?????????


4
?????(DSS) ?????????????????????Vcc????????,????
??NCP1207???????????????????,????????????????,????
?????????????????????,DSS???NCP1207?Vcc??,????DVD,
??????????,????MCU???????? ??????.
???????????,??????????????????????????????????????
???. ????,?????. ???????NCP1207?????????????,????
?,????????????????.??????????????????,
????????????????.??????????,?????MOSFET,??MOSFET??
???????,?????????????.????????,?MOSFE?????????,???
??????????????????????.


5


6

????? ?????????????????NCP1207 PIN1???????7.2V??.?
?????????????7.2V.?NCP1207?????????.??NCP1207 PIN
6 ??????VCC ????4.0V.?????????????????????????.  ?
???? ?????????????????????????????. ??????.???????
???.???????????.????????NCP1207
FB??????,??NCP1207P?????HICUP ??.NCP1207??????,???
???.?????????????. ???????,??????ON/OFF????.

7
????NCP1207?PWM???????70W AC/DC
???????????????????????. ???????????? ????
72W ????? 24V DC /- 2 ????? 12V DC
/-5 ????? 2.4A
????? 1.2A ?????? 100V AC ?????? 264V
AC ?????? 70 kHz

8
??????????????
9
??????  ??????? AC 100V-264V???VAR1??????R2??????
C2 L2??????,??????BD1??BD1???C3??????????????,????
??????NCP1207P?8????NCP1207P(IC1A)??????????NCP120
7P 6??C13????????8mA??6??????12V?,NCP1207
5??????????????????????T101??????M1?7RA 7RB 7RC
?????????T101?????????????????????????????????????
????????M1??,???????????????T101???????????T101???
????????D7 D1??? C5 C6 C7 C14????????
10
???????? ????????R14 R12 R15 R10 R11 7RA 7RC 7RB
R6 C8 R1 C9 IC2 IC3 IC1A(NCP1207P)??? R14 R12 R15
?24V??????,?24V?????????R15??????IC2??????????????
??????????IC3,?NCP1207 2????????NCP1207??PWM????IC
1A 5????????T101??????????,??????????24V??????24V?
?????????????????????R10?IC3??????R11???IC2?????C8
C9 R1??????????????7RA 7RB 7RC
?????????????,7RA 7RB 7RC????????R6???NCP1207
3????NCP1207??PWM???(????????)????7RA 7RB
7RC????????1V????,??R6???NCP1207
3???NCP1207???????????NCP1207 5???????????????????
?R6????MOSFET????,?????????.???????NCP1207????,???
?200uA?????NCP1207 3? R6 R7A R7B
R7C??????.???R6????0.2V???,????M1???7RA 7RC
7RB?????????????????????
11
??Ton????? ??NCP1207P???????????AC???????Ton?????
????????????,???M1?NCP1207P?  NCP1207????? NCP1207
????????? ????????????????T101??????????,?R8
R5?????IC1A???????????7?2V??NCP1207???????????????
NCP1207 PIN 6 ??????VCC ????4.0V.?????????????????
????????. ?????????????????????? ???????????1/3,??
R7A R7B R6C????0?3V???? NCP1207???????????????????
?????????????? ???????1/3?????,NCP1207????????? ??
???????????NCP1207?????????,????????
12
??????? ??????   ????????????72
Watts. ?????????????80 ,????? ????????????????

13

• ?????600V?MOSEFT?????RC?????
• ??????????,???????
• ?????????????
• ???????,???????????????70KHZ .???????

14

• ??????(TDG)???EER28C,Ae85.8mm Bmax0.36T
  ????Bmax0.2T.??????????
• (???56?)
• ??????
• 
  (????400uH)
• ?????????AL
• 24VDC????????

15
12VDC???????? ??1.3?????????????,?12V?????1.2A?
,??????11V. ??????? ???????????
16
  ?  ????  ??? ????
? ?
????  12 10 2UEW-f0.402
38 ????  11 8
2UEW-f0.401 8
????  6 1
2UEW-f0.453 12
????  4 3 2UEW-f0.403
8
????  10 7 2UEW-f0.402
18
????  ?????    
17
???????? ???????????????R7A R7B R7C.????????R6
NCP1207 3???.NCP1207 3??CS(current
sense).???????1V .????????????? ????????????R7A
R7B R7C ??1R???????.  ????????R6??? ?NCP1207
5??????,NCP1207 3??????200uA???.???????R6,R7A/R7B/
R7C?????.?????M1??????????(R7A/B/C)??.????????????
??.?????0.2V.??R6???
18
???????????????? ????????????????R8 NCP1207
1???.????????????R8??????NCP1207
1?.??????????NCP1207????????????.??R8??????NCP1207
1??????.NCP1207 1?????????????.NCP1207???????????
7.2V.?????????????R8?NCP1207 1??????????.????????7
.2V?.NCP1207 5???????????. ??NCP1207 PIN 6
??????VCC ????4.0V.?????????????????????????. R8??
?? C5????????????,????????????.???4701000P.
19
?????? ????????24VDC???????.??24VDC????????24VDC
???????????????80.??24V?????.IC2
TL431?????2.5V??????.24VDC??R14 R15
R12???,?R15?????????TL431?????.R15??????5.6K.R14
R12??????? ?R1438K R1210K??. R11???????TL431??
?????????1mA..????R114.7K. R10?????????????10mA.?
???R102.4K. C8 R1 C9?????????????????.???????????
?.??????C810NF C9100NF R14.7K. ????????????????
??. ???????????????????R1A R1B C1
D8??.?????????????????.??M1(MPT6N60).????????????,
?????????????.
20
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21
?? 6. 100VAC ?????72W? MOSFET?????????  
??????220VAC?????????
22
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