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70
Magtrol Hysteresis Dynamometers
Appenidix B: Schematics
APPENDICES
B.5
HD-825 BRAKE CONTROL SUPPLY
Q3
IRFP250
D5
MUR120
J7
1
Q2
2N2907
J6 1
U1
8
-
9
+
10
J3
6
R21
1.00K
R20
9.09K
R19
4.99K
R18
4.99K
C11
.01uF
C7
.047uF
R22
5.76K
C13
.1uF
J6 2
R25
1.0K
Q1
2N2222
D6
MUR120
R26
5
J5
2
J5
1
R7
90.9K
R6
10.0K
J3
2
R5
10.0K
D1
1N5242A
J3
1
R23
100K
R24
10.0K
U1
7
-
6
+
5
R8
10M
R9
9.09K
R13
10.0K
R14
10.0K
J3
4
R12
10.0K
D2
1N5225A
J3
3
R17
100K
C8
.0022uF
R16
76.8K
D3
1N4148
U1
OP400EY
1
2 -
+
3
R15
15.4K
Q5
out
com
LM320T15
in
C4
1uF
R2
5.1K
C6
.1uF
C5
1uF
R29
100
R27
0.1 5W
J4
2
Q4
out
LM340T15
com
in
C1
1uF
C2
1uF
R1
5.1K
D4
1N5225A
J3
5
C12
.001uF
C3
.1uF
T1
6
5
2
1
8
7
4
3
C10
.1uF
C9
.1uF
U1
4
11
BR1
C15
1000uF
R10
1.00K
J1
2
1
4
5
3
R11
1M
R28
50K
C14
1000uF
G
S
+15
D
0 to -10V
b
0 to +3V
a
+
+
-15
+
+
c
+15
+15
-15
PD05
+
IF-6-40
-15
+15
+
DB1
KBPC2502
T1
MPI-300-28
C14
10000uF
R29
1K 5W
P1
2
1
4
5
3
F2
SW1
F1
J11
5
4
1
6
3
2
P3
2
1
5
6
3
4
P11
5
4
1
6
3
2
P14
2
1
5
6
3
4
3 FOOT CABLE ASSY
88M077
P11
5
4
1
6
3
2
P10
1
J10
1
P5
1
F3
J10
2
P10
2
MOV1
VB2ZA4
P5
2
J14
2
1
5
6
3
4
FAN
P4
2
4
+
1
120V
3
240V
+35
2
E
D
OFF
PEM1
03CR4
N
L
I
ON
O
L
A
INTERNAL CABLE ASSY
BNC CABLE ASSY
88M086
CONNECTOR
TO B.P.
CONNECTOR
TO B.P.
P.C. BOARD
DYNO BRAKE
N/C
N/C
U30d-15
DSP6001/6200
B.P. CONNECTOR
J12-2
CHANGE R71 TO 5K
REMOVE R38 & R41
J12-8
+35
75V
5240 78B159 PC BD