![]() Thanks to its high performance drivers and versatility, it can be used in various topologies such as DCM or CCM flyback, quasi resonant flyback, forward and half bridge resonant LLC. The The NCP4306FLY100GEVB Evaluation Board is high performance driver tailored to control a synchronous rectification MOSFET in switch mode power supplies. The advanced control algorithm allows stable SR operation over entire load range. The adaptive dead time control function compensates parasitic inductance offset voltage and minimizes the body diode conduction and maximize the efficiency. These two gate driver stages have dedicated sense inputs and operate independently each other. It has two driver stages for driving the SR MOSFETs which are rectifying the output current of the secondary transformer. The secondary side controller FAN6248 is an advanced synchronous rectifier controller that is optimized for LLC resonant converter topology with minimum external components. The NCP1399 is a current mode controller for half bridge resonant converter featuring 600 V gate drivers, high-frequency operation from 20kHz up to 750kHz, automatic dead?time with maximum dead?time clamp, and skip mode operation for improved light load efficiency. The design utilizes NCP1399AA for the primary side controller, and FAN6248 for the secondary side synchronous rectification (SR) controller. The presented design demonstrates high power density DC-DC power supply with high efficiency through load variation.
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