Control architecture for interleaved converters

Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source

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Details

323282, G05F 110, G05F 156

Patent

active

058617345

ABSTRACT:
A control system for an converter circuit using two interleaved boost circuits is described which uses a single PWM controller to control the switches in both of the interleaved boost circuits. A voltage feedback control circuit monitors the output voltage of the converter circuit and sends that information to the PWM controller. A current sensing circuit is provided that senses the current in each of the boost converters. The current sensed in the current sensing circuit is converted to a voltage and used in conjunction with the voltage information from voltage feedback control circuit by the single PWM controller to regulate both of the boost converter switches. By regulating the boost converter switches, the single PWM controller is able to ensure proper synchronization and current sharing while tightly regulating the output voltage and improving the input power factor of the converter circuit.

REFERENCES:
patent: 5008795 (1991-04-01), Parsley et al.
patent: 5302862 (1994-04-01), Steigerwald
patent: 5477132 (1995-12-01), Canter et al.
patent: 5508903 (1996-04-01), Alexndrov

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