US 2014/0111016 A1 · STAGGERED PARALLEL THREE-LEVEL DC/DC CONVERTER AND AC/DC CONVERTER

Abstract

A staggered parallel three-level DC/DC converter and an AC/DC converter includes: at least one input power supply, N-phase three-level DC/DC circuits, N resonant inductors, N resonant capacitors, N transformers, N rectifier circuits, a first inductor, and an output circuit; one end of an i th resonant inductor is connected to an i th-phase three-level DC/DC circuit, the other end of the i th resonant inductor is connected to an excitation inductor of an i th transformer; one end of an i th resonant capacitor is connected to the i th-phase three-level DC/DC circuit, and the other end of the i th resonant capacitor is connected to the excitation inductor of the i th transformer; or one end of the first inductor is connected to the input power supply, and the other end of the first inductor is connected to the N-phase three-level DC/DC circuit; where N is an integer and is greater than or equal to 2, and i is an integer and 1≦i≦N.

Claims16

Dependent claims

A staggered parallel three-level DC/DC converter, comprising:

at least one input power supply;
N-phase three-level DC/DC circuits, N resonant inductors, N resonant capacitors, N transformers, and N rectifier circuits;
a first inductor;
and
an output circuit;
wherein one end of an i th resonant inductor is connected to an i th-phase three-level DC/DC circuit, and the other end of the i th resonant inductor is connected to an excitation inductor of an i th transformer;
wherein one end of an i th resonant capacitor is connected to the i th-phase three-level DC/DC circuit, and the other end of the i th resonant capacitor is connected to the excitation inductor of the i th transformer;
wherein one end of the first inductor is connected to the output circuit, the other end of the first inductor is connected to the N rectifier circuits;
or one end of the first inductor is connected to the input power supply, and the other end of the first inductor is connected to the N-phase three-level DC/DC circuits;
wherein N is an integer and is greater than or equal to 2;
and
wherein i is an integer and 1≦i≦N.

9 more elements

An AC/DC (alternating current/direct current) converter, comprising:

a power factor rectifier circuit;
and
a staggered parallel three-level DC/DC (direct current/direct current) converter which comprises:
at least one input power supply, N-phase three-level DC/DC circuits, N resonant inductors, N resonant capacitors, N transformers, N rectifier circuits, a first inductor, and an output circuit;
wherein one end of an i th resonant inductor is connected to an i th-phase three-level DC/DC circuit, and the other end of the i th resonant inductor is connected to an excitation inductor of an i th transformer;
wherein one end of an i th resonant capacitor is connected to the i th-phase three-level DC/DC circuit, and the other end of the i th resonant capacitor is connected to the excitation inductor of the i th transformer;
wherein one end of the first inductor is connected to the output circuit, the other end of the first inductor is connected to the N rectifier circuits;
or one end of the first inductor is connected to the input power supply, and the other end of the first inductor is connected to the N-phase three-level DC/DC circuits;
wherein, N is an integer and is greater than or equal to 2, and i is an integer and 1≦i≦N.

6 more elements

Dependencies are inferred from the claim text.

Staggered parallel three-level dc/dc converter and ac/dc converter

Life of this patent

Staggered parallel three-level dc/dc converter and ac/dc converter

Life of this patent

Abstract

Claims16