Epson Power Supply IC S1F70000 Technical Manual page 26

Positive Voltage Conversion
Diodes can be added to a circuit connected in parallel to
make a negative voltage positive.
V = –5 V
I
1
2
1M
3
4
Simultaneous Voltage Conversion
Combining a multiplier circuit with a positive voltage
conversion circuit generates both –10 and 3.8 V outputs
from a single input.
V = 0 V
DD
5 V
V = –5 V
I
1
2
1M
3
4
S1F70000 Series
Technical Manual
V = 0 V
DD
5 V
V ' = 3.8 V
O
8
10 F
7
6
5
10 F
V = 3.8 V
O2
C4
8
+ +
C2
10 F
10 F
7
V = –10 V
O1
6
C1
C3
+
10 F
5
+
10 F
EPSON
C2
+
C1
+
Potential levels
V = 3.8 V
O2
V = 0 V
DD
V = –5 V
I
V = –10 V
O1
S1F76600 Series
1–9