Patent ID: 7170765

Claim:
A current distribution circuit for parallel power supplies comprising at least a first power supply and a second power supply, said current distribution circuit comprising: a voltage amplifier; a power converting unit having an input electrically connected to an output of said voltage amplifier and an output electrically connected to a load; a detecting unit having an input electrically connected to said output of said power converting unit and said load; an equivalent diode having an input electrically connected to an output of said detecting unit and an output electrically connected to said parallel power supplies; an adjustable amplifier having an inverting input electrically connected to said output of said detecting unit and said input of said equivalent diode and a non-inverting input electrically connected to said output of said equivalent diode and said parallel power supplies; an adder electrically connected to a non-inverting input of said voltage amplifier and an output of said adjustable amplifier; and an active droop unit electrically connected to said output of said detecting unit.