Parallel DC/DC Power Supply Modules With Centralized PWM Control

The patent divides a single high-power DC/DC converter into multiple lower-power DC/DC converter modules connected in parallel. Each module has its own transformer and power devices, allowing the system to achieve high power output while maintaining low leakage inductance and high conversion efficiency in each individual module.

The patent segments the single large transformer into multiple smaller transformers distributed across different converter modules. This reduces the size of each individual transformer, allowing for better wind channel design and heat dissipation while still achieving the required total power output through parallel connection of multiple modules.

The patent merges the control circuits of multiple DC/DC converter modules into a single centralized control circuit. This unified control circuit manages all power switches across the parallel-connected modules, reducing the total amount of control circuits needed while maintaining the high power output capability of the parallel configuration.

The patent segments the heat dissipation management by providing independent heat dissipation paths for each DC/DC converter module. This allows each module to operate in its own thermal environment, optimizing the efficiency of each module based on its specific heat dissipation conditions while collectively achieving high power output.