Patent ID: 9614442
Date: 2017-04-04
CPC Classifications: H02M,Y02B

Claim:
1. A modular dc-dc converter system, comprising: a first dc-dc converter module, including a first converter module input port and a first converter module output port; a second dc-dc converter module, including a second converter module input port and a second converter module output port; a dc transformer module, including a transformer module input port and a transformer module output port; a controller that supplies at least one first duty cycle signal to at least one switch of the first dc-dc converter module, at least one second duty cycle signal to at least one switch of the second dc-dc converter module, and one or more control signals to the dc transformer module; a system input voltage port; and a system output voltage port, wherein the first converter module input port of the first dc-dc converter module and the second converter module input port of the second dc-dc converter module are coupled connected in parallel, and both the first dc-dc converter module and the second dc-dc converter module are coupled to the system input voltage port; the first converter module output port of the first dc-dc converter module is coupled to the transformer module input port of the dc transformer module; the second converter module output port of the second dc-dc converter module is coupled in series with the output port of the dc transformer module, and the series-coupled ports are coupled to the system output voltage port.