Dear all,
We are facing the problem that there is no gate drive signal from the IC.
This is the synchronous rectification schematic for our LLC converter.
Vout is 4.9 Volts, Synch is floating, EN/TOFF is 2.5V
Here is a screenshot from the scope:
CH1 current through rect_upper
CH2 gate voltage (GATE pin 5)
CH3 voltage at rect_upper (VD pin8)
Thank you and best regards
Eyke