DRA240_10 Datasheet, PDF (4/4 Pages) Chinfa Electronics Ind. Co., Ltd. – AC - DC DIN RAIL MOUNTABLE POWER SUPPLY INDUSTRIAL CONTROL EQUIPMENT

DRA240 SERIES
CIRCUIT SCHEMATIC
‧Block diagram for DRA240 series
L Fuse
Inrush Current
Filter
Limiter,
Rectifier and
Auto Select
P. F. C. Smoothing _Switching
Circuit Circuit Device
N
115 / 230 Vac
Y
PWM
Controller
Rectifier
Opto -
Isolation
Opto -
Isolation
Note: 1) For 24V Model Only
Current
Detection
Reference &
Error Amp.
Over Voltage
Detection
Output
Level
Detection
Vo +
Vo -
Single / Parallel
Select
Vout
ADJ.
DC ON
(Green LED)
DC LOW
(Red LED)
RDY ¹⁾
(Relay Contact)
TYP. CURRENT LIMITED CURVE
100
75
50
25
0
100
110
DRA240-24x
120
130
140
150
Output Current [ % ]
230 Vac
115 Vac
160
DERATING CURVE
100
75
0
-40
61
71
Temperature [ ^oC ]
www.chinfa.com
2010.05.21
TYP. EFFICIENCY CURVE
DRA240-24x
89
88
87
86
85
84
83
230 Vac
82
115 Vac
81
80
10
25
50
75
100
Power out [ % ]
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P4