поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

FFP08H60S датащи(PDF) 8 Page - Fairchild Semiconductor

номер детали FFP08H60S
подробное описание детали  PFCPWM Combination Controller
Download  17 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  FAIRCHILD [Fairchild Semiconductor]
домашняя страница  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FFP08H60S датащи(HTML) 8 Page - Fairchild Semiconductor

Back Button FFP08H60S Datasheet HTML 4Page - Fairchild Semiconductor FFP08H60S Datasheet HTML 5Page - Fairchild Semiconductor FFP08H60S Datasheet HTML 6Page - Fairchild Semiconductor FFP08H60S Datasheet HTML 7Page - Fairchild Semiconductor FFP08H60S Datasheet HTML 8Page - Fairchild Semiconductor FFP08H60S Datasheet HTML 9Page - Fairchild Semiconductor FFP08H60S Datasheet HTML 10Page - Fairchild Semiconductor FFP08H60S Datasheet HTML 11Page - Fairchild Semiconductor FFP08H60S Datasheet HTML 12Page - Fairchild Semiconductor Next Button
Zoom Inzoom in Zoom Outzoom out
 8 / 17 page
background image
AN-8027
© 2009 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.0 • 8/26/09
8
,
(1 cos(4
))
D AVG
BOUT
LINE
I
If
t
π
=−
BOUT
I
,
2
BOUT
BOUT RIPPLE
LINE BOUT
I
V
fC
π
=
BOUT
V
,
DAVG
I
D
I
Figure 14. PFC Output Voltage Ripple
(Design Example)
With the ripple specification of
12VPP, the capacitor should be:
,
0.9
239
22
50 12
BOUT
BOUT
LINE
BOUT RIPPLE
I
CF
fV
μ
ππ
>=
=
⋅⋅
Since minimum allowable output voltage during one
cycle line (20ms) drop-outs is 310V, the capacitor
should be:
3
22
2
2
,
2 349 20 10
260
387
310
BOUT
HOLD
BOUT
OUT
OUT MIN
Pt
CF
VV
μ
⋅⋅
×
>=
=
−−
Thus, 270
μF capacitor is selected for the PFC output
capacitor.
[STEP-6] PFC Output Sensing Circuit
To improve system efficiency at low line and light load
condition, FAN480X provides two-level PFC output
voltage. As shown in Figure 15, FAN480X monitors VEA
and VRMS voltages to adjust the PFC output voltage.
The PFC output voltage when 20µA is enabled is given as:
2
2
20
(1
)
2.5
FB
BOUT
BOUT
μAR
VV
-
×
(25)
It is typical second boost output voltage as 340V~300V.
Figure 15. Two-Level PFC Output Block
The voltage divider network for the PFC output voltage
sensing should be designed such that FBPFC voltage is
2.5V at nominal PFC output voltage:
2
12
2.5
FB
BOUT
FB
FB
R
VV
RR
×=
+
(26)
(Design Example)
Assuming the second level of
PFC output voltage is 347V:
2
2
6
6
2.5
(1
)
20 10
347
2.5
(1
)
12.9
387 20 10
BOUT
FB
BOUT
V
R
V
k
=−
×
= −⋅
=
Ω
×
13k
Ω is selected for RFB2.
12
3
(1)
2.5
387
(1) 13 10
1999
2.5
BOUT
FB
FB
V
RR
k
=− ⋅
=
−⋅ ×
=
Ω
2M
Ω is selected for RFB1.
[STEP-7] PFC Current-Sensing Circuit Design
Figure 16 shows the PFC compensation circuits. The first
step in compensation network design is to select the current-
sensing resistor of PFC converter considering the control
window of voltage loop. Since line feed-forward is used in
FAN480X, the output power is proportional to the voltage
control error amplifier voltage as:
0.6
()
0.6
MAX
EA
BOUT
EA
BOUT
SAT
EA
V
PV
P
V
=⋅
(27)
where VEA
SAT is 5.6V and the maximum power limit of PFC
is:
2
.
1
MAX
MAX
LINE BO
M
BOUT
IAC
CS
VG
R
P
RR
=
(28)


Аналогичный номер детали - FFP08H60S

производительномер деталидатащиподробное описание детали
logo
Fairchild Semiconductor
FFP08H60S FAIRCHILD-FFP08H60S Datasheet
164Kb / 5P
   Hyperfast Recovery Power Rectifier
FFP08H60S FAIRCHILD-FFP08H60S Datasheet
187Kb / 5P
   Hyperfast 2 Rectifier
FFP08H60S FAIRCHILD-FFP08H60S Datasheet
682Kb / 15P
   Power Factor Correction Converter Design
FFP08H60STU FAIRCHILD-FFP08H60STU Datasheet
164Kb / 5P
   Hyperfast Recovery Power Rectifier
FFP08H60STU FAIRCHILD-FFP08H60STU Datasheet
187Kb / 5P
   Hyperfast 2 Rectifier
More results

Аналогичное описание - FFP08H60S

производительномер деталидатащиподробное описание детали
logo
Fairchild Semiconductor
FAN4800AU FAIRCHILD-FAN4800AU Datasheet
987Kb / 20P
   PFC/ PWM Controller Combination
FAN4800A FAIRCHILD-FAN4800A_09 Datasheet
647Kb / 24P
   PFC/PWM Controller Combination
FAN4800AS FAIRCHILD-FAN4800AS Datasheet
583Kb / 19P
   PFC/PWM Controller Combination
FAN4800AUN FAIRCHILD-FAN4800AUN Datasheet
987Kb / 20P
   PFC/ PWM Controller Combination
FAN4800A FAIRCHILD-FAN4800A Datasheet
659Kb / 24P
   PFC/PWM Controller Combination
FAN3988IL6X-F113 FAIRCHILD-FAN3988IL6X-F113 Datasheet
992Kb / 21P
   PFC/ PWM Controller Combination
logo
Texas Instruments
UCC28500-12 TI1-UCC28500-12 Datasheet
914Kb / 35P
[Old version datasheet]   BiCMOS PFC/PWM COMBINATION CONTROLLER
UCC28521 TI1-UCC28521_16 Datasheet
790Kb / 34P
[Old version datasheet]   ADVANCED PFC/PWM COMBINATION CONTROLLER
UCC28500 TI-UCC28500 Datasheet
571Kb / 31P
[Old version datasheet]   BICMOS PFC/PWM COMBINATION CONTROLLER
UCC18500 TI-UCC18500 Datasheet
91Kb / 8P
[Old version datasheet]   BiCMOS PFC/PWM Combination Controller
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17


датащи скачать

Go To PDF Page


ссылки URL




Конфиденциальность
ALLDATASHEETRU.COM
Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   обмен ссыками   |   поиск по производителю
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com