DRD40 Datasheet, PDF (4/4 Pages) Chinfa Electronics Ind. Co., Ltd. – AC - DC DIN RAIL MOUNTABLE POWER SUPPLY INDUSTRIAL CONTROL EQUIPMENT

DRD40 SERIES
CIRCUIT SCHEMATIC
‧Block diagram for DRD40 series
Vi + Fuse
Line _Switching
Filter Device
Vi -
ON / OFF
PWM
controller
Rectifier
Opto -
Isolation
Opto -
Isolation
DERATING CURVE
Input Voltage : 10V ~ 28V
100
Vo +
Vo -
Reference &
Error Amp.
Over Voltage
Detection
Output Level
Detection
Vout
ADJ.
DC ON
(Green LED)
DC LO
(Red LED)
Input Voltage : >28V but 32V
100
50
Safe Operating Area
Safe Operating Area
40
0
-40
51
71
Temperature [ ^oC ]
0
-40
41
71
Temperature [ ^oC ]
Ta : 50^oC
100
80
Safe Operating Area
0
10
28
32
Input Voltage [ V ]
DERATING AND EFFICIENCY CURVE
Efficiency Vs Input Voltage
DRD40-12
89
88
87
86
85
84
Io : Full Load
83
10 12 14 16 18 20 22 24 26 28 30 32
Input Voltage (V)
www.chinfa.com
2016.05.25
90
85
80
75
70
65
60
55
10 20
Efficiency Vs Output Load
DRD40-12
Vi : 24VDC
30 40 50 60 70 80 90 100
Output Load (%)
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P4