Current balancing circuit

Details Current balancing circuit Current balancing circuit

2007-06-26

2007-06-26

Berhane, Adolf (Department: 2838)

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

Reexamination Certificate

active

11341890

ABSTRACT:
There is disclosed a current balancing circuit for use in a switching power supply unit that operates in parallel with one or more other switching power supply units with current balancing terminals connected to each other. The current balancing circuit comprises a first resistor that receives a detection signal of the output current input via a diode and outputs an output current detection voltage; a second resistor connected between the current balancing terminal and a connection point between the first resistor and the diode; an operational amplifier that outputs a signal corresponding to the different between the output current detection voltages; and a switching circuit.

REFERENCES:
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patent: 5495164 (1996-02-01), Heng
patent: 10 2004 003 963 (2004-08-01), None
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patent: 1-222659 (1989-09-01), None
patent: 04-026316 (1992-01-01), None
patent: 2001-161063 (2001-06-01), None
European Search Report and Annex dated Aug. 17, 2006 of Application No. EP 06 25 0414.

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