DER-46
6 W peak, Multiple output PSU for DVB-T
April 20, 2005
10 Thermal Performance
Measurement was taken at 195Vac; TAMBIENT =25oC with no airflow.
All outputs at
Nominal Load
All outputs at
Peak Load
70ºC
Reference
Description
56ºC
U1
T1
TNY264P
EE13 Transformer
3.3V Rectifier
47ºC
57ºC
51ºC
64ºC
D11
11 Waveforms
11.1 Drain Voltage and Current, Normal Operation
Figure 6 - 195 VAC, Full Load.
Upper: VDRAIN, 200 V, 10 µs / div
Lower: IDRAIN, 0.2 A / div
Figure 7 - 265 VAC, Full Load
Upper: VDRAIN, 200 V, 10 µs / div
Lower: IDRAIN, 0.2 A / div
Power Integrations
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