Active impendance current-share method

Details Active impendance current-share method Active impendance current-share method

2007-10-16

2007-10-16

Berhane, Adolf (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

Reexamination Certificate

active

11423331

ABSTRACT:
Exemplary embodiments include An active impedance current-sharing circuit including: a power supply in electrical communication with a current sense resistor; a differential amplifier in electrical communication with the current sense resistor; a gate adjust amplifier in electrical communication with the differential amplifier; an ORing MOSFET in electrical communication with the gate adjust amplifier and the current sense resistor; a current share resistor in electrical communication with a current share bus and the gate adjust amplifier; and a current share output in electrical communication with the ORing MOSFET, wherein the circuit allows two or more power supplies that are not designed for current share to be connected in parallel and current share by actively modulating the ORing MOSFET between its linear and fully enhanced regions.

REFERENCES:
patent: 6150803 (2000-11-01), Varga
patent: 6201723 (2001-03-01), Farrington
patent: 6894466 (2005-05-01), Huang et al.
patent: 2003/0214274 (2003-11-01), Lethellier
patent: 2006/0171178 (2006-08-01), Shvarts
patent: 2006/0273740 (2006-12-01), Saeueng et al.

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