Description
ZXGD3105N8 synchronous controller is designed for driving a
MOSFET as an ideal rectifier.
This is to replace a diode for increasing the power transfer efficiency.
Proportional Gate drive control monitors the reverse
voltage of the
MOSFET such that if body diode conduction occurs a positive
voltage is applied to the
MOSFET’s Gate Pin.
Once the positive
voltage is applied to the Gate the
MOSFET switches on allowing reverse current flow.
The controllers’ output
voltage is then proportional to the
MOSFET Drain-Source
voltage and this is applied to the Gate via the driver.
This action minimizes body diode conduction whilst enabling a rapid
MOSFET turn-off as the Drain current decays t...