PCB 157C - HIGH-VOLTAGE POWER SUPPLY
1
2
3
4
5
6
A
B
C
D
6
5
4
3
2
1
D
C
B
A
T i tl e
R e v i s i o n
D a te
1 3 - J u l- 2 0 1 0
Z :\m jc fil e s \p c b \1 5 7 \ h v _ d i s c h a r g e \h v_ d is c h a r g e .d d b - 1 5 7 C \p c b 1 5 7 C - p o s - s i m p l i fie d .s c h
P O S / N E G C A P D I S C H A R G E R C I R C U I T
1 B
- 1 5 V
1
2
3
Q 3
I X T H 1 3 N 1 1 0
R 1 8
4 . 7 K
1
2
3
Q 2
I X T H 1 3 N 1 1 0
R 1 6
2 2 0 O Y
R 8
2 2 0 O Y
K E E P P I N S 1 -3 W E L L
S E P A R A T E D F R O M
P I N S 4 -6 .
R 1 5
4 . 7 K
T h e d is c h a r g e c i r c u it r y i s d i s a b l e d b y th e '1 2 3 i f th e U V s t a tu s p i n i n d i c a te s th a t th e U V i s c u r r e n t- l im iti n g . T h i s i s i g n o r e d i f t h e s ta t u s p i n i s lo w b e c a u s e t h e P O L R P C B h a s d i s a b l e d t h e U V .
T h e m a i n s o l i d - s t a t e r e l a y tu r n s o n i f t h e vo l t a g e a t th e U V o u tp u t is m o r e th a n 5 V lo w e r th a n th e vo l ta g e o n t h e c a p a c i to r b a n k s . T h is tu r n s o n a M O S F E T th a t d is c h a r g e s t h e c a p a c ito r s th r o u g h th e h i g h - i m p u ls e - r a t e d r e s i s t o r s .
T h e s e c o n d M O S F E T s u p p l ie s a c o n s ta n t 2 m A b ia s to th a t is s w i tc h e d b e tw e e n th e 1 N 4 9 3 7 o r t h e S S R + 1 N 4 9 3 7 + 1 0 0 O H M , d e p e n d i n g o n th e vo l ta g e le ve ls .
R 1 9
3 3 K
V C C
C 3
4 8 F 4 9 0 1 , M f g 1 0 2 R 2 9 W 1 0 3 K V 4 E , 0 . 0 1 u F , 1 k V , 1 8 0 8 p k g
A
1
B
2
C L R
3
C e x t
1 4
R e x t / C e x t
1 5
Q
1 3
Q
4
V C C
1 6
G N D
8
U 1 A
C D 7 4 H C T 1 2 3 E
+ 1 5 V
R 1 3
1 0 K
C 2
2 . 2 u F
C 1
0 . 1 u F
V C C
8
1
0
Q 1 D
M P Q 2 2 2 2
1
3
Q 1 A
M P Q 2 2 2 2
7
5
Q 1 B
M P Q 2 2 2 2
V C C
+ 1 5 V
R 1 7
N O T U S E D
3
4
R N 1 B
2 . 2 K
5
6
R N 1 C
2 . 2 K
7
8
R N 1 D
2 . 2 K
1
2
R N 1 A
2 . 2 K
D 2
1 N 4 9 3 7
D 5
1 N 4 9 3 7
D 4
D 3
1 N 4 9 3 7
R 1 4
3 0 0
V C C
- 1 5 V
+ 1 5 V
R 9
1 0 0 O Y
1
2
3
+
4
-
5
+
6
K 3
A Q V 2 1 2 S
1
2
3
+
4
-
5
+
6
K 1
A Q V 2 1 0 S
X 1
6 - 3 2 1 / 2 " N Y L O N N U T A N D B O L T
X 2
6 - 3 2 1 / 2 " N Y L O N N U T A N D B O L T
1
2
J 6
6 4 0 4 4 5 - 2
1
2
J 7
6 4 0 4 4 5 - 2
H V 1
H
V
2
R 1 0
1 . 5 K
X 4
H V W A R N I N G
X 5
H V W A R N I N G
G N D
1
+ 2 4 V I N
2
M O N
3
E N
4
G N D
5
A D J U S T
6
R E F O U T
7
G N D
8
G N D
9
O U T
1 0
O U T
1 1
C
A
S
E
1
2
C
A
S
E
1
3
U V 1
3 0 W U V
D 1
1 N 4 7 5 0
1
2
J 1
6 4 0 4 4 5 - 2
C C W
C W
W
T O P V I E W
R 7
X
R 5
X
R 4
X
R 2
X
R 1
X
R 6
X
C 4
2 . 2 u F
1
2
3
J 2
6 4 0 4 5 6 - 3
E N A B L E
A M P I N
+ 2 4 V O L O
R 3
X
1
2
3
4
J 3
6 4 0 4 5 6 - 4
D 6
1 N 4 1 4 8
X 3
A 2 6 4 5 1 - N D , 2 P I N S O C K E T , O N B O T T O M
X 6
A 2 6 4 5 1 - N D , 2 P I N S O C K E T , O N B O T T O M
X 7
A 2 6 4 2 3 - N D , 1 3 P I N S O C K E T , O N B O T T O M
Содержание AVRF-7A-B
Страница 47: ...PERFORMANCE CHECK SHEET 47...