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+15V BUCK CONTOLLER
11
I REF
U112
R233
3.3k
16
V REF
R228
2k
2
NI
R220
2k
5 R T
R223
3
EA OUT
13k
C175
.22
8 S S
+ C178
R221
1
36k
INV 1
R224
0
6
+15V
C T
15 Vcc
C176
13 VC
R225
.001
C181
+ C180
.01
6.8
12
R226
GND
24
10 GND A
7
RAMP
9
I SD
14 OUT
INPUT CURRENT
SENSOR
+26.5V
1
+ C163
2700
CR124
3
R200
R198
R199
Q122
18
R205
18
18
6026
10
CR125
R206
10
Q124
R201
6026
180
R207
51
C162
R204
.1
2k
R231
R208
180
51
Q123
6110
C164
R203
.001
2k
SYNC PULSE (1)
+15V BUCK CONTOLLER
C196
.001
5 R T
6
C T
U113
R259
13k
8 S S
3
EA OUT
+ C198
C194
1
.22
R258
+15V
36k
INV 1
15 Vcc
13 VC
11
I REF
+ C200
C201
R265
.01
6.8
3.3k
12
GND
10 GND A
16
V REF
R264
2k
2
NI
R256
2k
7
RAMP
14 OUT
9
I SD
+26.5V
1
+ C186
1500
CR130
3
R237
R235
R236
18
Q129
R242
18
18
6026
10
CR131
R243
10
Q131
R238
6026
180
R244
180
C184
R241
.1
2k
R245
51
Q130
6110
C185
R240
.001
2k
-5V CONVERTER
CR136
2
OUT
C208
+C209
5
COMP
L105
.1
1500
U114
C204
.047
MC33166T
R270
+26.5V
33k
4
1
Vcc
V FB
+ C205
R271
1500
3.3k
3
GND
August2000
Part No. 001-2001-200
R234
C182
470pF
1k
C173
.1
L103
WO 115
C173
+ C165
+ C166
C170
WO 107
C167
R215
+ C169
.0022
1500
1500
.01
6.2k
1500
.01
WO 108
R216
1k
Q127
R219
3600
470
R217
1.2k
Q128
C172
3612
68
.01
R315
R218
820
4.7k
R229
R227
820
180
R232
C183
T108
820
270pF
CR127
2
R209
R210
620
620
4
R308
0
Q125
6352
R281
L102
470
R211
R214
12.4k
1k
CR126
8
1
CATHODE
REF
U116
C220
R212
7
2
ANODE A
ANODE D
.1
2.26k
TL431ID
6
3
ANODE B
ANODE C
5
4
NC A
NC B
C195
R260
68
.01
R261
24
+5V
WO 109
+5V DC OUTPUT
C193
+ C187
+C188
C189
R253
.0022
1500
1500
.01
4.7k
WO 110
+5V DC GROUND
R254
1k
C191
R266
C202
470pF
.0047
1k
R255
4.3k
C192
.1
C203
270pF
R269
T109
360
CR133
2
R247
36
4
R246
OVER-VOLTAGE 6V
470
R309
MAXIMUM
0
Q132
R249
R252
6352
3.4k
1k
8
1
CATHODE
REF
U117
C222
R250
7
2
ANODE A
ANODE D
.1
2.49k
TL431ID
6
3
ANODE B
ANODE C
L104
5
4
R251
NC A
NC B
CR132
R303
UNDER-VOLTAGE -6V
200
MINIMUM
R284
R286
3.4k
1k
8
1
CATHODE
REF
U118
C227
R285
7
2
ANODE A
ANODE D
.1
2.49k
TL431ID
6
3
ANODE B
ANODE C
5
4
R287
NC A
NC B
C212
.01
800W POWER SUPPLY SCHEMATIC (2 OF 2)
FIGURE 10-37
10-32
HIGH CURRENT OUT
+15V DC OUTPUT
GROUND
U119
IL205A
6
5
1
2
Q126
4
3612
CR129
C168
R213
.01
200
SHUTDOWN
DRIVE
TO U115
U120
IL205A
6
5
1
2
Q133
4
3612
CR135
C190
200
.01
U122
IL205A
6
5
1
2
Q138
4
3612
CR141
C211
200
.01
WO 111
-5V DC OUTPUT
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