Sam4s ER-280 SERIES Service Manual page 78

A
[ +24V POWER BLOCK ]
CON-BOX;2P,2.5MM,ST(YH)
2
CN10:2
1
CN10:1
1
2
BD1
BD_KBU6B
4
3
1
CN9:A
2
CN9:B
3
CN9:C
2
4
CN9:D
3
4
2
[ VPRT POWER BLOCK ]
+24V
3
U16
KA34063A
8 1
DC SC
7 2
SENSE SE
6 3
VCC TC
5 4
IN GND
C47
100nF
2012
4
A
10-12
B
T3
CE3 CE5
1
4700uF 2200uF
50V 50V
BD2
WO2G
Q19
MMBT2222A
1
2
3 2
R118 R120
CE9 1K 2K
100uF
50V
1
ZD3
BZT52C30
30V
Q21
R131 MMBT2222A
4.7K
3
1
VOLT_ONOFF
2
R126
10K
HS1 L1
140uH
3 2
R86
470
Q15
1
KSA1010Y
R89 2 3
10K
D13 D7
R78 Q14
SK14 SK14
4.7K KSA1182-Y
R87
1
10K
C46
100pF
NOTE] VOUT= 1.25 × (1+(R2/R1))=1.25×(1+(12K/2.2K))=8.06[V]
B
전원부 설계 방안
[
+24V
R108
27K
VDISP
T2
3
Q20
KSA1182-Y
C17
R15
1
100nF
27K
2012
R121
12K
[ +5V POWER BLOCK ]
VPRT +24V
T1
R77
12K
CE4
C43
470uF
100nF
16V R106
0.1
R80 3W
2.2K
C
]
POWER
+32V VDISP(+28V)
TRANS
PFAIL
POWER
+24V VPRT(+8V)
SWITCH
PFAIL
PORT
VCC(+5V)
PFAIL
PFAIL
PFAIL
HS2
3 2
R105
470
Q16
1
KSA1010Y
R104
680
U22
KA34063A
8 1
DC SC
7 2
SENSE SE
6 3
VCC TC
5 4
IN GND C49
100pF
Size
Date
File Name
C
SAM4S ER-280 SERIES
D D
1
VFD
LF MOTOR
SPOOL
VPH
VF
5V / 280mA
VLCD
4.2V / 200mA
2
VSERIAL
5V / 150mA
SD CARD
+3.3V
L2
VDD50V
140uH
T5
3
R96
36K
CE7
D22 D23 C69
470uF
SK14 SK14 100nF
16V
R95
12K
T7
4
Shin Heung Precision Co., Ltd.
TITLE : ER-280 Rev
1.3
A3
POWER BLOCK
Drawn by
2007.02.28 K.Y CHOI
Sheet of
ER280 MAIN.SCH 11 11
D D