Logic Power Supply Sleep-Mode Decoupling for Lower UPS Losses
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Solution Overview
Problem
Power supply systems, such as UPS, face inefficiencies during sleep modes of processing equipment, leading to increased energy consumption and difficulty in meeting regulatory efficiency standards due to reduced load power consumption.
Innovation Solution
A power circuit with a Logic Power Supply (LPS) that adjusts voltage levels and selectively decouples from the load during sleep states, optimizing efficiency by providing different voltage levels for active and sleep states, and using a converter to power a controller for control signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the LPS continues to provide power at full voltage level during load sleep mode, then the load can be powered, but power consumption and energy waste increase
Solution Approach 1:
The LPS dynamically adjusts its operation mode based on load state detection. When sleep mode is detected, the LPS transitions from providing full voltage power to providing only standby power through the switch, optimizing energy consumption while maintaining power supply reliability for wake-up scenarios.
Solution Approach 2:
The invention extracts the essential function of the LPS during sleep mode by providing only minimal standby power through a switch, rather than continuous full power. This separates the power provision function into active and standby modes, reducing energy loss while maintaining system reliability.
2Loss of energy
If the LPS is decoupled from the load during sleep mode, then power consumption is reduced, but the load cannot be quickly powered when needed
Solution Approach 1:
The switch is pre-positioned to allow rapid reconnection of the LPS to the load when wake-up is detected. This preliminary positioning of the switch enables immediate power restoration without complex reconfiguration, resolving the contradiction between energy savings and power restoration speed.
3Loss of energy
If the LPS provides different voltage levels for active and sleep states, then efficiency is optimized, but system complexity increases
Solution Approach 1:
The invention applies different voltage levels locally - full voltage when active and reduced voltage when in sleep mode - rather than uniformly across all states. This localized adaptation optimizes efficiency for each operational state without requiring complex global control systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution improves the efficiency of the power supply system by reducing stress on converters and eliminating power losses, allowing it to operate more efficiently and meet regulatory standards even during low power consumption periods.
Implementation Method 1
a Logic Power Supply (LPS) coupled to the input and configured to convert the input power into the LPS output power
Data Source
AI summary
A power circuit including an input configured to receive input power from an input source, a first output configured to provide LPS output power to a load, a Logic Power Supply (LPS) configured to convert the input power into the LPS output power, the LPS configured to provide, in a first mode, the LPS output power with a first voltage level in response to receiving an indication that the load is being powered by the LPS output power and configured to provide, in a second mode, the LPS output power with a second voltage level in response to receiving an indication that the load is not being powered by the LPS output power, and a first switch configured to couple the LPS to the first output in the first mode and to decouple the LPS from the first output in the second mode.