ifi T251-500A, Инструкция по эксплуатации и техническому обслуживанию

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B B
A A
Title
Size Document Number R e v
Date: Sheet o f
500524-3
A
COLLECTOR SUPPLY PWM 50KHz
B
1 1 Thursday, February 17, 2005
GND
V+
14
INHIBIT
CURRENT SENSE
+15 VDC
COMMON
INHIBIT
CURRENT SENSE
REGULATION
VOLT-ADJ.
CURRENT-ADJ.
10V
15V
10V
15V 50/50 SQUARE WAVE
NOTES:
R10, SETs SWITCHING FREQ, HIGHER 'R' LOWER FREQ.
R20, SETs VOLTAGE RANGE, HIGHER 'R' LOWER VOLTS (10K FOR 4KV APPLICATION)
INITIAL SETUP, MEASURE W/DVM PIN 6 OF IC AND ADJ R17 TO 1.5V for Helix + Collector load
J1 Pin 5, 5.5V @ STBY; 0.7V @OPRT
U2 Pin 8 is Shutdown, 5V Run, 0V Shutdown
R2
10
R6
51K
C?
1UF
R27
1K
R28
330
R12 10K
R26 330
D12
US1M
C12
1UF
C15
1UF
D16
TL431CLP
2
3
1
D11
US1M
C7
0. 1UF
C13
1UF
C16
1UF
R18 1K
R24
2.7K
C14
1UF
C3
1UF
R14
5K,POT
R20
2.2K 1%
R1
1K
R11 510
Q2
MMBT3906
3
2
1
R4
100
R15
2K
R19
510
R21
4.7K
D13 US1M
R23 1K
R7
1K
R16
4.7K
R9 2.2K
+ C4
6.8UF,25V
R17
5K,POT
+
C11
100UF,16V
Q4
BSS123
3
2
1
J1
CON10
1
2
3
4
5
6
7
8
9
10
+
C5
22UF,35V
U2
SG3526DW
+E
1
-E
2
+CS
7
-CS
6
COMP
3
CSS
4
RST
5
SD
8
RT
9
CT
10
RDT
11
S
12
VREF
18
OUTA
13
OUTB
16
VC
14
GND
15
VCC
17
+
C18 10UF, 25V
C10
3000PF
D6
US1M
C17
1UF
D4
US1M
R8
10K
C8
1UF
R10 5.1K
+
C1
22UF,35V
+
C21
22UF,35V