High-Frequency, High Density Power Factor Correction Conversion For Universal Input Grid Interface

摘要

A circuit includes a reconfigurable rectifier, a voltage balancer, and a pair of converters. The reconfigurable rectifier includes an ac input port and three output ports. In a first configuration, the reconfigurable rectifier can deliver power at a first output port and, in a second configuration, to at least a second output port. The voltage balancer includes first and second ports coupled to second and third output ports of the reconfigurable rectifier and is configured to balance received voltage at the first and second ports. The first converter has an input coupled to the first port of the voltage balancer and an output at which a first converted voltage signal is provided. The second converter has an input coupled to the second port of the voltage balancer and an output at which a second converted voltage signal is provided.

主权项

1. A circuit comprising:
a reconfigurable rectifier having an input port configured to receive an alternating current (ac) input signal and first, second, and third output ports, wherein in a first configuration the reconfigurable rectifier is configured to deliver power at the first output port and in a second configuration the reconfigurable rectifier is configured to deliver power to at least the second output port; a voltage balancer having first and second ports, with the first and second ports coupled to the second and third output ports of the reconfigurable rectifier and configured to balance the voltage at the first and second ports; a first converter having an input coupled to the first port of the voltage balancer and having an output at which a first converted voltage signal is provided; and a second converter having an input coupled to the second port of the voltage balancer and having an output at which a second converted voltage signal is provided.