SOUTHERN AVIONICS COMPANY
Model SA100 Dual 2-47Theory of Operation, Radiobeacon
Figure 2-32. DC Power Supply PWB Schematic (Single Units)
GND
GND
DC IND
EXCV
RFV
HV OUT
SHUTDOWN
RFV
EXCV
GND
DC IND
+12V
+12V
+12V
+12V
+12V
NOTES
1. THIS DRAWING NO. SEP30330 REV. D.
2. TITLE: DC PCB, SINGLE SCHEMATIC.
3. ASSEMBLY DWG. NO. SAP30330.
4. ALL RESISTORS IN OHMS, 1/4W, 1%, UNLESS NOTED.
5. ALL CAPACITORS IN uF, UNLESS NOTED.
6. ** FACTORY SELECTED COMPONENT, IF NEEDED.
+
C14
1.0
+
C2
6.8
C3
0.001
TP4
CR4
1D400400
TP0
+
C7
33
R4
3.9K
Q1
1T250001
TP3
CR3
1D440000
R17
10K
F3
1A
+
C11
1.0
+
C1
1.0
C10
0.001
R18
18K
C12
1.0
U4
1U352400
V-
1
V+
2
VREF
16
VIN
15
COMP
9
+SENSE
4
-SENSE
5
SHTDWN
10
RT
6
CT
7
CA
12
EA
11
CB
13
EB
14
OSCOUT
3
GND
8
L1
1L000006
TP2
+
-
U5C
10
9
8
R10
1.2K
1/2W
R16
22K
R21
4.7K
CR5
1D400400
C8
0.001
R13
100K
1W
+
-
U5D
12
13
14
R15
4.7K
+
-
U5A
3
2
1
U2
1U211000
LO
1
COM
2
VCC
3
-
4
VS
5
VB
6
HO
7
-
8
VDD
9
HIN
10
SD
11
LIN
12
VSS
13
-
14
R8
4.7
W2
DCHO
C15
0.001
Q3
1T952300
+
-
U5B
1U324000
5
6
7
411
TP5
C17
**
CR6
1D474400
R25
10K
C16
150pF
R9
4.7
JP1
R30
10K
Q2
1T250001
+
C9
3300
K1
9R190004
1
5
10
6
2
9
C4
0.047
+
C13
1.0
R11
1.2K
1/2W
R26
10K
CR7
**
R14
4.7K
F1
3A
R3
**
P1
GOLD FINGERS (22X)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
CR9
1D523900
R5
1.8K
U3
1U211000
LO
1
COM
2
VCC
3
-
4
VS
5
VB
6
HO
7
-
8
VDD
9
HIN
10
SD
11
LIN
12
VSS
13
-
14
U1
1U352400
V-
1
V+
2
VREF
16
VIN
15
COMP
9
+SENSE
4
-SENSE
5
SHTDWN
10
RT
6
CT
7
CA
12
EA
11
CB
13
EB
14
OSCOUT
3
GND
8
C6
3.3
400V
R22
10K
CR2
1D440000
R12
100K
CR1
1D154000
R31
10K
1%
R28
10K
R6
10K
CR10
1D440000
R23
22K
1%
TP1
R29
10K
CR8
1D066200
R19
39K
R20
390
R2
10K
R27
10K
R7
33K
W3
GND
CR11
1D440000
R32
390
C5
0.047
W1
BTRY
F2
2A
R24
82.5K
1%
To Next Page
Loading...