Patent ID: 7199636
Filing Date: 2007-04-03
Classification: H02M,H03K,Y02B

Abstract:
1. An active diode comprising: a NMOS transistor having a source terminal, a drain terminal, a gate terminal and a back gate terminal, said source terminal being connected to said back gate terminal; said source terminal forming an anode terminal of said active diode, and said drain terminal forming a cathode terminal of said active diode; an offset bias voltage source having a first terminal and a second terminal; and an amplifier having a non-inverting input terminal and an inverting input terminal, and an output terminal, said inverting input terminal being connected to said drain terminal of said NMOS transistor, said non-inverting input terminal being connected to said first terminal of said offset bias voltage source, and said output terminal being connected to the gate terminal of the NMOS transistor; wherein said second terminal of said offset bias voltage source is connected to said source terminal of said NMOS transistor, and said amplifier provides the sole control signal to said gate terminal of said NMOS transistor.