AN10881
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Application note
Rev. 2 — 26 September 2011
65 of 102
NXP Semiconductors
AN10881
TEA1713 resonant power supply control IC with PFC
9.4 Advantages of Burst mode for HBC and PFC simultaneously
The TEA1713 provides a Burst mode system that simultaneously switches the HBC and
PFC. In this way, during the burst period, the power is transferred directly from the input to
the output. The HBC determines the repetition time of the burst and the PFC follows. In
the burst period, the PFC operates in normal regulation.
PFC bursting obtains extra reduction in power consumption.
to
show
examples of the results.
Fig 41. Reduced losses by HBC Burst mode in a 250 W converter
Pout (W)
0
15
10
5
001aal051
8
12
4
16
20
Pin
(W)
0
with burst mode
with burst mode
normal mode
Fig 42. Increased efficiency at low output power in burst HBC and PFC (90 W adapter)
Pout (W)
0
100
80
40
60
20
001aal052
70
80
60
90
100
efficiency
(%)
50
