Current sharing signal coupling/decoupling circuit for power con

Details Current sharing signal coupling/decoupling circuit for power con Current sharing signal coupling/decoupling circuit for power con

1999-04-01

2000-10-17

Berhane, Adolf Deneke

Electric power conversion systems

Current conversion

Having plural converters for single conversion

307 58, 307 82, H02M 3135

Patent

active

061341290

ABSTRACT:
An improved current sharing signal coupling/decoupling circuit for use in each module of a system including a plurality of parallel connected modules, each such circuit providing an interface between a module's "current sharing signal" port and a common connection bus. The signal coupling/decoupling circuits also share a common ground noted in the disclosure as a "current sharing reference". Each circuit is comprised of a variable reference based decoupling subcircuit, including a first comparator, a bi-directional switch, and a variable voltage reference, and a fixed referenced based decoupling circuit including a second comparator, a scalar resistor and a fixed voltage reference. The variable reference comparator senses the difference between the variable reference voltage and the voltage on the associated module's current sharing signal port, and activates the bi-directional switch to disconnect the module. In the fixed reference subcircuit, the second comparator activates the bi-directional switch to disconnect the module from the common current sharing signal bus, if the sensed signal as scaled by the scalar network resistor, drops below the fixed reference voltage. The scalar resistor is included in the second subcircuit to allow the use of a standard voltage reference to implement the fixed reference.

REFERENCES:
patent: 5267136 (1993-11-01), Suga et al.
patent: 5404092 (1995-04-01), Gegner
patent: 5418708 (1995-05-01), Nairus
patent: 5521809 (1996-05-01), Ashley et al.
patent: 5563780 (1996-10-01), Goad
patent: 5672958 (1997-09-01), Brown et al.
patent: 5682303 (1997-10-01), Goad
patent: 5740023 (1998-04-01), Brooke et al.
patent: 5768117 (1998-06-01), Takahashi
patent: 5923549 (1999-07-01), Kobayashi et al.
patent: 5946206 (1999-08-01), Shimizu et al.

Affiliated with

Also associated with

Rating

Current sharing signal coupling/decoupling circuit for power con does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Current sharing signal coupling/decoupling circuit for power con, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Current sharing signal coupling/decoupling circuit for power con will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-475590