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U104
SOURCE
SOURCE
+15V
+5V
U105
8
1
VIN
VOUT
LM78L05
C131
+C132
C134
GND
+ C133
.1
1
1
.1
2,3,4,5,6,7
+26.5V
U111
2 VIN
3
VOUT
LM317T
C152
+ C159
GND
+ C160
C161
R267
R180
.1
6.8
430
15
.01
7.5k
1
R158
Q112
15k
3600
R268
+C199
Q111
R179
TO SYN CIRCUIT CR128/CR121/L101
4.7k
6.8
3600
4.7k
R181
APPROXIMATELY 100V PEAK
1k
U104A
R151
U104B
R178
74HC08
20k
1
74HC08
3
4
2k
Q110
SYNC PULSE OUTPUT
2
6
5
C138
3600
BUFFER
R152
.001
4.7k
CR140
R176
100
CR122
SYNC PULSE WIDTH
CONTROLLER
+26.5V
+ C205
1500
October 1999
Part No. 001-2009-201
+15V BUCK CONTOLLER
11
I REF
U112
R233
R234
C182
470pF
3.3k
1k
16
V REF
R228
2k
2
NI
R220
C173
2k
.1
5 R T
R223
3
EA OUT
13k
C175
.22
C173
8 S S
.0022
+ C178
R221
1
36k
INV 1
R224
0
Q127
R219
6
+15V
C T
3600
470
15 Vcc
C176
13 VC
Q128
R225
C172
.001
3612
68
.01
C181
+ C180
R315
R218
.01
6.8
820
4.7k
R226
12
GND
24
10 GND A
7
RAMP
R229
R227
9
I SD
820
180
14 OUT
INPUT CURRENT
SENSOR
R232
C183
+26.5V
T108
820
270pF
CR127
1
2
+ C163
R209
R210
CR124
2700
620
620
3
4
R200
R198
R199
Q122
R308
18
R205
18
18
0
6026
10
CR125
Q125
6352
R206
10
Q124
R201
6026
180
R207
51
L102
C162
R204
.1
2k
R231
R208
180
51
Q123
CR126
6110
C164
R203
.001
2k
SYNC
+15V BUCK CONTOLLER
C196
R260
C195
.001
.01
68
5 R T
6
C T
U113
R259
R261
13k
24
8 S S
3
EA OUT
+ C198
C194
1
.22
C193
+ C187
.0022
1500
R258
+15V
36k
INV 1
15 Vcc
13 VC
11
I REF
C201
+ C200
R265
R266
C202
.01
6.8
3.3k
1k
470pF
12
GND
10 GND A
16
V REF
R264
2k
2
NI
R256
C192
2k
.1
7
RAMP
14 OUT
9
C203
I SD
270pF
R269
+26.5V
T109
360
CR133
1
2
+ C186
R247
CR130
1500
36
3
4
R237
R235
R236
R309
Q129
18
R242
18
18
0
6026
10
CR131
Q132
6352
R243
10
Q131
R238
6026
180
R244
180
L104
C184
R241
.1
2k
R245
51
Q130
CR132
6110
C185
R240
.001
2k
-5V CONVERTER
CR136
2
OUT
C208
+C209
5
COMP
L105
.1
1500
U114
C204
.047
MC33166T
R270
33k
4
1
Vcc
V FB
R271
3.3k
3
GND
800W POWER SUPPLY SCHEMATIC (2 OF 2)
FIGURE 10-47
10-42
L103
WO 115
HIGH CURRENT OUT
+ C166
WO 107
+ C165
C167
R215
+ C169
C170
+15V DC OUTPUT
1500
1500
.01
6.2k
1500
.01
WO 108
GROUND
R216
1k
R217
1.2k
U119
IL205A
R281
6
470
1
5
R211
R214
2
12.4k
1k
Q126
8
1
4
CATHODE
REF
3612
U116
C220
R212
7
2
ANODE A
ANODE D
.1
2.26k
CR129
TL431ID
6
3
ANODE B
ANODE C
R213
C168
5
4
NC A
NC B
.01
200
SHUTDOWN
DRIVE
TO U115
+5V
WO 109
+5V DC OUTPUT
+C188
C189
R253
1500
.01
4.7k
WO 110
+5V DC GROUND
R254
1k
C191
.0047
R255
4.3k
U120
IL205A
R246
6
OVER-VOLTAGE 6V
470
5
MAXIMUM
1
R249
R252
2
3.4k
1k
8
1
Q133
4
CATHODE
REF
3612
U117
C222
R250
7
2
ANODE A
ANODE D
.1
2.49k
CR135
TL431ID
6
3
ANODE B
ANODE C
5
4
R251
C190
NC A
NC B
200
.01
U122
IL205A
R303
6
UNDER-VOLTAGE -6V
200
5
MINIMUM
1
R284
R286
2
3.4k
1k
8
1
Q138
4
CATHODE
REF
3612
U118
C227
R285
7
2
ANODE A
ANODE D
.1
2.49k
CR141
TL431ID
6
3
ANODE B
ANODE C
C211
5
4
R287
NC A
NC B
200
.01
WO 111
-5V DC OUTPUT
C212
.01
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