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Decoder Board -- Circuit Diagram 3
CON9
18V_IN
1
TP66
2
TP67
MCU3.3V/IP5V
3
IP_GND
4
TP68
5
ECO_POWER
CON2.5-4
L56
CON2.54-5
FB/100R
18V_IN
L58 FB_0349
R227
C113
4.7K
NS/100nF
CB63
+
0.1uF
CE31
470u/35V
MCU3.3V
R228 10K
MCU3.3V/IP5V
18V_IN
R221 47R 1/2W
+
CE22
100u/16V
GND
R224 10K
2
ECO_POWER
R225
22K
U16
AP1538/SOP-8
SOP8/SMD
L59 47UH-3A
4
6
Vcc
O/P
5
O/P
C126
R226
NS/100nF
18k-1%
3
1
OCSET
FB
R139
3K-1%
R235 0
D25
SK34
CB62
0.1uF
Low ESR <125 mOHM
0.8 x (1+2.61K/2K) = 1.84V
J5
IP5V
CON2.0-2
1
R203 NC/0R
2
R217
33K
IP_GND
A18V
CES2307
Q72
R222
47K
R223
1K
2
Q24
3904
C141
104
GND
12-8
MCU3.3V/IP5V
R202 NC/0R
U12 HT7333
SOT-89
R234 470 1/2w
18V_IN
2
3
IN
OUT1
+
CE32
100u/16V
100u/16V
5.6V
R206
47K
5.6V
C142
+
C134
10uF/0805
CE23
104
470u/16V
P_GND
C
1
4
2
1
0
u
F
L
5
9
CES2307
R211
47K
MCU3.3V
+
C132
104
CE20
+5.6V
CES2307
Q70
+ CE21
100u/16V
R207
P_GND
1K
R208 4.7K
Q22
2
CD_ON
2
3904
R209
C137
22K
104
SK34
D24
P_GND
P_GND
R218
0/NC
U14
M5.6V
AMS1117-3.3
Q73
3
2
IN
OUT1
4
OUT2
R212
C138
33K
104
SOT223
R213
P_GND
1K
R214 4.7K
Q21
2
ECO_POWER
2
3904
R215
C139
22K
104
P_GND
P_GND
12-8
ECO_POWER
ECO_POWER
3
M5V
M5V
+
C135
CE26
104
220u/10V
M3.3V
M3.3V
+
C136
CE28
104
220u/16V
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