DER-49
-12V/3W, Non-Isolated Buck-Boost Converter
April 20, 2005
7 Performance Data
All measurements performed at room temperature, 60 Hz input frequency.
7.1 Efficiency
80.00%
70.00%
60.00%
50.00%
Vin = 108VAC
Vin = 120VAC
40.00%
30.00%
20.00%
10.00%
0.00%
Vin = 240VAC
Vin = 265VAC
0
50
100
150
200
250
300
Load Current (mA)
Figure 4 - Efficiency vs. Output Current, Room Temperature, 60 Hz.
7.2 No-load Input Power
0.5
0.45
0.4
0.35
0.3
0.25
0.2
0.15
0.1
0.05
0
80
130
180
230
280
Input Voltage (VAC)
Figure 5 - Zero Load Input Power vs. Input Line Voltage, Room Temperature, 60 Hz.
Power Integrations
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