AN4406 Datasheet, PDF (19/27 Pages) STMicroelectronics – new ST super-junction technology ideal for resonant topologies

AN4406
Testing and comparing
Figure 16. Efficiency data vs load level in 200 W Figure 17. η (%) efficiency at V_IN = 230 V_AC for
evaluation board
specific load %
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Figure 18. Average % efficiency at V_IN = 230 V_AC
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4.3
400 W HB LLC resonant converter for PDP applications
based on L6599 and STP24N60M2
This section describes the performances of a 400 W reference board, with wide-range
mains operation and power-factor-correction (PFC) and presents the results of the bench
evaluation [6]. The electrical specification refers to a power supply for a typical high-end
PDP application.
The main features of this design are:
• very low no-load input consumption (< 0.5 W)
• very high global efficiency; > 90% at full load and nominal mains voltage (115 –
230 V_AC).
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