Modular Power Supply Control for Scalable Stable Output
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Solution Overview
Problem
Existing modular power supplies face limitations in scalability and flexibility, leading to compromised cost-efficiency due to confined configurations.
Innovation Solution
A modular power supply system comprising a primary control unit and secondary power supply modules with independent feedback loops, connected via a communication interface, allowing for scalable and flexible power distribution with optimized control and synchronization to prevent oscillations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple switching power supplies are connected in parallel with phase-shifted control signals, then the combined output current threshold is prevented from being exceeded, but scalability and flexibility are limited
Solution Approach 1:
The power supply system is divided into independent modular units, each with its own control circuitry. These modules can be connected in parallel or series configurations, allowing the system to scale flexibly while maintaining controlled current thresholds through individual module management rather than phase-shifted parallel connections
Solution Approach 2:
The system employs dynamic control where the primary control unit independently regulates each modular power supply unit based on real-time feedback. This allows the system to adapt its output characteristics dynamically, providing both current threshold control and scalability without requiring fixed phase-shifted configurations
2Power
If multiple power supply modules are combined to increase output power, then power delivery capability is improved, but system complexity increases
Solution Approach 1:
Multiple power supply modules are combined with their control circuits merged into integrated modular units. Each module is self-contained but communicates with a central primary control unit, allowing power scaling while managing complexity through standardized interfaces and unified control architecture
Solution Approach 2:
The modular power supply units are designed with universal characteristics, allowing them to function in different configurations (parallel for current scaling, series for voltage scaling). This multi-functionality enables power delivery enhancement without proportionally increasing system complexity, as the same basic module design serves multiple purposes
Data Source
AI summary
A modular power supply comprises a primary power supply module comprising a primary control unit and a primary feedback control loop for an electrical characteristic of the electrical power supplied at its output terminals, and at least one secondary power supply module, each of which comprising a respective independent secondary feedback control loop for an electrical characteristic of the electrical power supplied at the respective output terminals, and being connected with the primary control unit via a communication interface, the primary control unit exemplarily controlling the primary power supply module and the at least one secondary power supply module, the output power of the primary power supply module and the at least one secondary power supply module being combined.