ACTIVE DIODE HAVING IMPROVED TRANSISTOR TURN-OFF CONTROL METHOD

摘要

An active diode that features improved control of transistor turn-off is provided. Such an active diode may include a comparator to compare voltages between opposite ends of a parasitic diode, and a gate driver to control a gate terminal of the transistor according to the comparison result of the comparator. Furthermore, the active diode may further include an off-timing controller to control the transistor to be turned off at a point in time when voltages of the opposite ends of the parasitic diode turn positive. Thus, the active diode may be turned off when required.

主权项

1. An active diode, comprising:
a comparator configured to compare voltages at opposite ends of a parasitic diode of a transistor; and a gate driver configured to, in response to the comparison result of the comparator, control a gate terminal of the transistor, wherein the active diode further comprises: an off-timing controller configured to turn off the transistor at a point in time when the voltages at the opposite ends of the parasitic diode is positive.