Os motores de busca de Datasheet de Componentes eletrônicos
  Portuguese  ▼
ALLDATASHEETPT.COM

X  

FCA20N60S Folha de dados(PDF) 9 Page - Fairchild Semiconductor

Nome de Peças FCA20N60S
Descrição Electrónicos  Power Factor Correction Converter Design
Download  15 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrônico  FAIRCHILD [Fairchild Semiconductor]
Página de início  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FCA20N60S Folha de dados(HTML) 9 Page - Fairchild Semiconductor

Back Button FCA20N60S Datasheet HTML 5Page - Fairchild Semiconductor FCA20N60S Datasheet HTML 6Page - Fairchild Semiconductor FCA20N60S Datasheet HTML 7Page - Fairchild Semiconductor FCA20N60S Datasheet HTML 8Page - Fairchild Semiconductor FCA20N60S Datasheet HTML 9Page - Fairchild Semiconductor FCA20N60S Datasheet HTML 10Page - Fairchild Semiconductor FCA20N60S Datasheet HTML 11Page - Fairchild Semiconductor FCA20N60S Datasheet HTML 12Page - Fairchild Semiconductor FCA20N60S Datasheet HTML 13Page - Fairchild Semiconductor Next Button
Zoom Inzoom in Zoom Outzoom out
 9 / 15 page
background image
AN-6982
APPLICATION NOTE
© 2010 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.0 • 6/8/10
9
,
(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 16. 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
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-5] PFC Output Sensing Circuit
To improve system efficiency at low-line and light-load
condition, FAN6982 provides two-level PFC output
voltage. As shown in Figure 17, the range function can be
enabled or disabled through a resistor connected to ground
or VREF. FAN6982 monitors VEA and VRMS voltages to
adjust the PFC output voltage and enables a 20µA current
source.
The PFC output voltage when 20µA is enabled is given as:
2
2
20
(1
)
2.5
FB
BOUT
BOUT
μAR
VV
-
×
(23)
It is typical to set the second boost output voltage as
340V~300V. It should be checked if the output voltage is
higher than the peak of the line voltage
12
3
2
3
2.45
2
RMS
RMS
RMS
BOUT
RMS
RR
R
V
R
π
++
⋅⋅
<
(24)
Figure 17. Block of Range Function
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
×=
+
(25)
(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.
It is checked if the output voltage is higher than the
peak of the line voltage:
12
3
3
63
3
3
2.45
2
2 10
200 10
36 10
2.45
2
36 10
239
347
RMS
RMS
RMS
RMS
RR
R
R
VV
π
π
++
⋅⋅
×+
×
+
×
=⋅ ⋅
×
=<
Then, to obtain 387V for nominal PFC output,
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.
2.5V
+
-
VDD
RFB1
RFB2
FBPFC
20µA
1.95/2.45
VEA
VRMS
+
-
1.95/2.45
VREF
EN
+
-
3.75
SGND
VBOUT


Nº de peça semelhante - FCA20N60S

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
Fairchild Semiconductor
FCA20N60S FAIRCHILD-FCA20N60S Datasheet
970Kb / 9P
   600V N-Channel MOSFET
FCA20N60S FAIRCHILD-FCA20N60S Datasheet
620Kb / 17P
   PFCPWM Combination Controller
logo
Inchange Semiconductor ...
FCA20N60S ISC-FCA20N60S Datasheet
347Kb / 2P
   isc N-Channel MOSFET Transistor
logo
Fairchild Semiconductor
FCA20N60S-F109 FAIRCHILD-FCA20N60S-F109 Datasheet
970Kb / 9P
   600V N-Channel MOSFET
FCA20N60S-F109 FAIRCHILD-FCA20N60S-F109 Datasheet
298Kb / 14P
   DESIGN/PROCESS CHANGE NOTIFICATION
More results

Descrição semelhante - FCA20N60S

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
Fairchild Semiconductor
AN4107 FAIRCHILD-AN4107 Datasheet
491Kb / 14P
   Design of Power Factor Correction
AN-6026 FAIRCHILD-AN-6026 Datasheet
352Kb / 23P
   Design of Power Factor Correction Circuit
AN4121 FAIRCHILD-AN4121 Datasheet
130Kb / 22P
   Design of Power Factor Correction Circuit
AN-6027 FAIRCHILD-AN-6027 Datasheet
422Kb / 16P
   Design of Power Factor Correction Circuit
logo
Emerson Network Power
LPT80 EMERSON-NETWORKPOWER-LPT80 Datasheet
281Kb / 3P
   Power Factor Correction
logo
EPCOS
B25667B4287A375 EPCOS-B25667B4287A375 Datasheet
136Kb / 3P
   Power Factor Correction
B25667B4497A375 EPCOS-B25667B4497A375 Datasheet
125Kb / 3P
   Power Factor Correction
B25667B5197A375 EPCOS-B25667B5197A375 Datasheet
100Kb / 3P
   Power Factor Correction
B25667B5217A175 EPCOS-B25667B5217A175 Datasheet
131Kb / 3P
   Power Factor Correction
B25667B3497A375 EPCOS-B25667B3497A375_05 Datasheet
103Kb / 3P
   Power Factor Correction
More results


Html Pages

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


Folha de dados Download

Go To PDF Page


Ligação URL




Privacy Policy
ALLDATASHEETPT.COM
ALLDATASHEET é útil para você?  [ DONATE ] 

Sobre Alldatasheet   |   Publicidade   |   Contato conosco   |   Privacy Policy   |   roca de Link   |   Lista de Fabricantes
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