Painel Power - Philips FWD39 Service Manual

35 FWD39
POWER BOARD
POWER BOARD

PAINEL POWER

TABLE OF CONTENTS
TABLE OF CONTENTS CONTEÚDO
Diagrama em Bloco Interno...................................................35
IC INTERNAL BLOCK DIAGRAM ....................................... 8-1
IC INTERNAL BLOCK DIAGRAM ....................................... 8-1
Painel Power - Esquema Elétrico........................................... 36
Circuit Diagram .................................................................... 8-2
Circuit Diagram .................................................................... 8-2
Painel Powerl - Layout........................................................... 37
PCB Layout .......................................................................... 8-3
PCB Layout .......................................................................... 8-3
Electrical Parts List .............................................................. 8-4
Electrical Parts List .............................................................. 8-4
8-1
8-1
KA5M02659RN INTERNAL BLOCK DIAGRAM
KA5M02659RN INTERNAL BLOCK DIAGRAM
DIAGRAMA EM BLOCO INTERNO KA5M02659RN
V
CC
V
CC
32V
32V
* Soft Start
* Soft Start
5V
5V
uA
uA
FB
FB
2.5R
5 A 1mA
2.5R
5 A +
1mA
1R +
1R
9V
9V
+
+
7.5V
7.5V
+ Thermal S/D
+ Thermal S/D
27V
27V
OVER VOLTAGE S/D
OVER VOLTAGE S/D
DIAGRAMA EM BLOCO INTERNO KA7500C KA7500C INTERNAL BLOCK DIAGRAM
KA7500C INTERNAL BLOCK DIAGRAM
R T
6
R T
6
OSCILLATOR
OSCILLATOR
5
C T
5
C T
DEAD
DEAD 4
4
TIME
TIME
1.2V
CONTROL
1.2V
CONTROL
PWM
PWM
COMP
COMP
EA(+)
1 +
EA(+)
1 +
1
1
-
-
EA(-) 2
EA(-) 2
0.7MA
0.7MA
EA(+) 16 +
EA(+) 16
+
2
2
-
EA(-) 15
-
EA(-) 15
COMP INPUT
3
COMP INPUT
3
8-1
8-1
5V Internal
5V Internal
SFET
Vref bias
SFET
Vref bias
Good
Good
logic
logic
OSC
OSC
S
S
Q
Q
R
R
L.E.B
L.E.B
0.1V
0.1V
S
S
Q
Q
R
R
Power on reset
Power on reset
OUTPUT CONTROL
OUTPUT CONTROL
13
C1
13 8
C1
8
D Q
D Q
E1
9
9 E1
11 C2
11 C2
CK Q
CK Q
10 E2
10
E2
12
V CC
12
5V V CC
5V
BAND GAP
BAND GAP
14
V REF
REFERENCE 14
V REF
REFERENCE
7
GND
7
GND
DRAIN
DRAIN
GND
GND