Power Supply Mode Transition Circuit for Server Applications
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Solution Overview
Problem
Existing power supply systems in server and telecom applications face challenges in smoothly and quickly transitioning between constant voltage, constant current, and constant power modes, often resulting in overshoot and damage to devices, and are not cost-effective or compact.
Innovation Solution
A system and method that includes a circuit with a device monitoring component, error selecting component, filter instruction component, and filter to optimize transitions between control modes by monitoring load voltage, current, and power, using digital error signals and filter parameters to regulate operation, thereby minimizing errors and ensuring smooth, fast transitions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional power supply systems transition between control modes, then the system can adapt to different operating conditions, but the transitions cause overshoot and potential device damage due to slow and non-smooth mode switching
Solution Approach 1:
The patent implements dynamic control mode transitions by continuously monitoring operating parameters (voltage, current, power) and automatically selecting the appropriate control mode (constant voltage, constant current, or constant power) based on real-time conditions. This dynamic adaptation eliminates overshoot and ensures smooth transitions between modes, preventing device damage while maintaining versatility.
Solution Approach 2:
The system employs feedback mechanisms by monitoring load voltage, current, and power continuously and using this information to determine the optimal control mode. The feedback loop ensures that transitions between control modes occur smoothly and quickly (less than 2 ms) by adjusting control parameters based on actual operating conditions, thereby preventing overshoot and protecting connected devices.
2Adaptability or versatility
If conventional systems use multiple hardware components for mode control, then comprehensive control is achieved, but the system size and cost increase
Solution Approach 1:
The patent implements a universal control architecture where a single controller performs multiple functions: monitoring voltage, current, and power; determining operating mode; selecting appropriate control parameters; and executing control decisions. This multi-functional approach eliminates the need for separate hardware components for each control mode, reducing system complexity and cost while maintaining comprehensive control capability across all three modes (constant voltage, constant current, and constant power).
Data Source
AI summary
A circuit includes a device monitoring component, a voltage error component, a current error component, a power error component, an error selecting component, a filter instruction component and a filter. The device monitoring component monitors load voltage and load current, and outputs a device state signal. The voltage error component outputs a voltage error signal. The current error component outputs a current error signal. The power error component outputs a power error signal. The error selecting component outputs a selected error signal. The filter instruction component outputs a filter instruction based on the device state signal. The filter outputs a modification signal to modify operation of a device so as to modify one of the load voltage, the load current and the load power.