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– 21 –
SD-SG11H
Figure 21
BLOCK DIAGRAM (4/7)
IN
NF–
OUT–
OUT+
NF+
ICA100
IX2815AF
7TH ORDER
∆∑
MODULATION
CONVERSION LSI
OUTPUT OFFSET
ADJUSTMENT
ANALOG SIGNAL
INPUT
- POWER
- POWER
- POWER
+POWER
+POWER
LOAD
OUTPUT FET
+5 V
GND
REF
POWER -
LEVEL SHIFT
GATE DRIVER
LOW PASS
FILTER
-9V with reference to
the minus voltage
OUT
ICA105
NJM78M09
+9 V VOLTAGE
REGULATOR
IN
NF
GND
L-IN
L-OUT
H-OUT
H-IN
L-IN
L-OUT
H-OUT
H-IN
B. S
B. S
+5 V
DEAD TIME
CONTROL
SLICE LEVEL
SET VOLTAGE
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