Patent ID: 7903433
Filing Date: 2011-03-08
Classification: H02M

Abstract:
1. A converter for a multi-phase current network, comprising: a plurality of current sensors, each of the plurality of current sensors being configured to detect current for a respective phase of the multi-phase network for regulating current therein; current averaging circuitry coupled to an output of each of the current sensors and utilizing a path for detecting current in each of the phases for generating an indication of the average current for the multi-phase network based on the current detected by each of the plurality of current sensors, whereby the current regulation and current sharing utilize a common path; a modulator configured to modulate at least one phase of the multi-phase network independently of each other phase of the multi-phase network based on a difference between the current detected for the at least one phase and the average current for the multi-phase network; a current share amplifier for each of the plurality of phases configured to provide a scaled output having a value that is proportional to the difference between the current detected for each respective phase and the average current for the multi-phase network, the modulator being configured to modulate each phase of the multi-phase network independently based on the scaled output provided for each respective phase; and a time-averaging filter coupled between the current sensor and the current share amplifier for each respective phase for providing a time-averaged indication of the phase current to the current share amplifier and to the current averaging circuitry.