AUIRS1170S

18

Rev. 2.3

2016-09-03

Resonant Half-Bridge Application

The typical application circuit of AUIRS1170 in LLC half-bridge is shown in Figure 10.

Figure 10: Resonant half-bridge application circuit

The SYNC pin can be tied to Vs in LLC converter. The turn-on phase and turn-off phase is similar to flyback

converter except the current shape is sinusoid. The typical operation waveform can be found below.

Figure 11: Resonant half-bridge operation waveforms (SYNC connected to Vs)