Current mode control circuit for paralleled power supply and met

Details Current mode control circuit for paralleled power supply and met Current mode control circuit for paralleled power supply and met

1998-04-24

2000-04-25

Han, Jessica

Electric power conversion systems

Current conversion

Having plural converters for single conversion

363 71, H02M 748

Patent

active

060551690

ABSTRACT:
For use with a power supply including first and second parallel-coupled converters having interleaved first and second switches, respectively, the first and second switches limited to a duty cycle of less than about 50 percent, a current mode control circuit and a method of current-mode controlling the power supply. In one embodiment, the current mode control circuit, includes: (1) an interconverter current transformer, coupled to an input of the power supply, that senses an input current of the power supply and (2) a controller, coupled to the current transformer, that moderates the duty cycle of the first and second switches as a function of the input current to cause the first and second converters to share an output current of the power supply.

REFERENCES:
patent: 4663702 (1987-05-01), Tanaka
patent: 5418707 (1995-05-01), Shimer et al.
patent: 5712540 (1998-01-01), Toda et al.

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