-1/4
-1/4
-1/4
-1/4
-1/4
-1/4
-1/4
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ACC-ON CONT
PWR-ON CONT
P.BOX P.W.Board
NOTE:N.U.is Not Used Parts.
IVA-D310R/IVA-D310RB
Schematic Diagram
DC/DC+15V/-10V
Vref=1.26
Vo=Vrefx(1+R2/R1)
Vref=1.26
Vo=Vrefx(1+R2/R1)
4V
7V
COM
OPEN:ON
IN+2
OFF
VOUT
OADJ
IN+1
IN-1
R2=6.8k
R1=3.3k//56k
Vref=1.26
DT2
Low:OFF
OPEN:ON
VREF
Vo=3.98V
VSOFT
6:BATT
VSOFT
OUT2
Vo=6.98V
5:ACC-ON CONT
VIN
FB1
R1=3.3k
+9V
2:+15V
SCP
R1=3k//13k
High:ON
7:7V
8:4V
OUT1
R2=15k
Vo=Vrefx(1+R2/R1)
10:PWR-ON CONT
OSC
3:GND
Low:OFF
VSOFT
OADJ
9:DC/DC+15/-10V CONT
9V
DT1
Vo=9.01V
VIN
4:-10V
VOUT
VOUT
1:9V
High:ON
RB2
Low:OFF
COM
R2=15k
High:ON
VCC
+5V
GND
COM
FB2
OADJ
OPEN:ON
VIN
GND
GND
GND
GND
GND
B
F
3
D
5
E
5
C
4
1
A
F
2
B
A
4
E
2
D
3
1
C
3.3k
R3844
15k
R3843
56k
R3849
3.3k
R3846
6.8k
R3845
2.2k
R3838
N.U.
R3848
2.2k
R3842
13k
R3847
3k
R3841
15k
R3840
2.2k
R3839
47k
R3833
47k
R3834
42
TH3802
42
TH3801
1.2k
R3814
1k
R3852
2.7k
R3854
5.6k
R3815
4
5
6
1
2
3
IMH1A
Q3808
4
5
6
1
2
3
IMH1A
Q3807
27k
R3819
DTC143XKA
Q3801
DTC143EKA
Q3803
DTC143EKA
Q3804
1.5k
R3829
1000/10
E3806
1000/10
E3808
1000/10
E3810
1000/10
E3809
1000/10
E3807
470/16
E3804
470/16
E3805
100/16
E3801
1.2k
R3830
1m
L3802
1m
L3801
2.2k
R3853
18k
R3811
330p
C3802
2.2k
R3809
27k
R3820
1
C3822
1
C3821
1
C3820
100
R3851
100
R3850
RD4.3MB2
ZD3801
2.2k
R3808
10k
R3810
750
R3805
1
R3806
27k
R3802
2SA1735
Q3802
N.U.
R3804
100
R3801
750
R3807
750
R3803
0.1
C3818
18k
R3823
N.U.
VR3803
10k
R3818
15k
R3824
7.5k
R3822
2SC4540
Q3805
5
4
3
2
1
PQ1CY1032ZP
IC3803
13k
R3825
330/25
E3803
0.01
C3810
0.1
C3808
RB050L-40
SD3802
0.1
C3814
1k
R3821
TP3801
0.1
C3817
0.1
C3816
0.1
C3807
MA113
D3801
0.022
C3801
0.1
C3803
2SA1735
Q3806
0.1
C3819
N.U.
VR3802
5
4
3
2
1
PQ1CY1032ZP
IC3802
0.22
C3804
470
R3827
330/25
E3802
RB050L-40
SD3803
MA113
D3802
RB050L-40
SD3801
0.22
C3805
0.01
C3809
1k
R3816
0.01
C3812
10
9
8
7
54321
6
5569-10A1
CB3801
68u
L3803
0.1
C3815
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
AN8018SA
IC3801
LATCH2
VCC
PWM2
VREF
0.9V
0.2V
UNL
PWM1
0.9V
0.9V
VREF
UNL LATCH1
0.9V
0.22V
SCP
Comp
1.19
OSILLATOR
TRIANGULAR-WAVE
1.19V
VREF
O
L
V
U
L
H
Q
S
R
LUTCH
+
-
+
-
- +
-
+
+ - -
ORIGIN
VREF
VOLTAGE
STANDARD
CONTROL
ON/OFF
-
+
ERROR AMP2
+
-
- + -
ERROR AMP1
+ -
+ -
1.8k
R3813
0.22
C3806
220k
R3812
0.1
C3813
1.2k
R3828
0.01
C3811
68u
L3805
N.U.
VR3801
5
4
3
2
1
PQ1CY1032ZP
IC3804
10k
R3817
68u
L3804
12k
R3826
- 110 -
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TO P. W. BOARD