Parallel current mode control using a direct duty cycle...

Electric power conversion systems – Current conversion – With condition responsive means to control the output...

Reexamination Certificate

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C323S207000, C323S222000

Reexamination Certificate

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07317625

ABSTRACT:
A method and apparatus to implement parallel current mode control that is suitable for digital and analog implementation. A duty cycle algorithm is composed of a voltage term and a parallel current term which depends on the inductor current change between the inductor current value at the beginning of a switching cycle and the reference inductor current value at the end of that switching cycle. Parallel current mode control can be applied to all DC-DC converters, including both non-isolated and isolated topologies. It can also be applied to AC-DC converters with power factor correction.

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