Patent ID: 9000825
Filing Date: 2015-04-07
Classification: H02M,H03K

Abstract:
1. An active diode circuit comprising: an active diode, the active diode comprising an anode terminal, a cathode terminal, a control terminal, a first MOSFET of a first conductivity type, and a second MOSFET of the first conductivity type, wherein a source of the first MOSFET and a source of the second MOSFET are connected to form one of the anode terminal and cathode terminal of the active diode, a gate and a drain of the first MOSFET are connected to a gate of the second MOSFET, a source and a drain of the second MOSFET form the other one of the anode terminal and cathode terminal of the active diode, and the gate of the first MOSFET forms the control terminal of the active diode; and a control circuit configured to generate a control current of the active diode on the control terminal proportional to a diode current of the active diode, and to control the diode voltage of the active diode below a first predetermined threshold, wherein the control circuit comprises: