Master-Slave Power Supply Dynamic Load Balancing
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Solution Overview
Problem
Current power supply systems for server systems cannot efficiently manage power distribution, leading to unnecessary energy waste as they lack the ability to individually control power supply devices, requiring manual intervention to turn off unused devices.
Innovation Solution
A power supply system comprising a master and slave power supply device with micro-controlling and detection modules that dynamically adjust power output based on current demand, using controlling pins to manage the activation and deactivation of slave power supply modules when current values reach specific loading proportions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple power supply devices are used to meet maximum power requirements, then power supply capacity is sufficient, but energy waste increases when full capacity is not needed
Solution Approach 1:
The power supply system is segmented into a master power supply device and multiple slave power supply devices. Each device can be independently controlled to turn on or off based on actual power demand, allowing the system to scale capacity dynamically rather than always operating at maximum capacity.
Solution Approach 2:
The system implements dynamic power management where slave power supply devices are automatically activated or deactivated based on real-time power demand detection. This dynamic adjustment ensures that power supply capacity matches actual needs, preventing energy waste during low-demand periods.
2Loss of energy
If power supply devices are manually controlled to turn off unused devices, then energy waste is reduced, but system complexity and operation difficulty increase
Solution Approach 1:
The master power supply device continuously monitors power demand and provides feedback control signals to slave power supply devices. When demand exceeds the master's capacity, the master automatically activates slave devices; when demand decreases, slave devices are automatically deactivated, eliminating manual intervention.
Solution Approach 2:
The power supply system performs self-management through automatic detection and control mechanisms. The master power supply device autonomously determines when slave devices should be activated or deactivated based on detected power demand, without requiring human operation or external control.
3Loss of energy
If slave power supply devices are automatically activated based on current demand, then energy efficiency improves, but device complexity increases
Solution Approach 1:
The control functions for multiple slave power supply devices are merged into a single master power supply device. The master device consolidates the detection and control responsibilities, issuing unified control signals to multiple slaves, which simplifies the overall control architecture compared to having independent control mechanisms for each device.
Data Source
AI summary
A power supply system and a power supply method thereof are disclosed. The power supply system includes a master power supply device and a slave power supply device. When a master power detection module detects that a current value of a master power signal generated from a master power supply module increases to a first loading proportion, a master micro-controlling module will notices a slave micro-controlling module via a controlling pin to enable a slave power supply module to generate a slave power signal. When a slave power detection module detects that a current value of the slave power signal decreases to a second loading proportion, the slave micro-control module will control the slave power supply module to stop generating the power signal.