AN9759 is a control IC specific for resonant half-bridge topology. It provides 50% complementary duty cycle signals of the high-sideswitch (HVG) and the low-side switch (LVG). And a fixed dead-time inserted between HVG and LVG transient guarantees soft switching and enabled high-frequency operation. The IC built-in a 600V high-voltage floating structure that drive the high-side switch with the bootstrap approach, an external fast-recovery bootstrap diode between VCC and VBOOT must be added....