Dual Power Supply Switching for Low-Idle Power Delivery
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Solution Overview
Problem
Conventional power delivery systems in electronic devices consume high idle power due to features that maintain voltage quality, reducing battery life in battery-powered devices, especially when devices are in standby mode.
Innovation Solution
A power supply controller that switches between a high-power and a low-power power supply based on detected triggers, using a low-power power supply during standby mode to reduce power consumption and a high-power supply during active use to provide improved noise reduction and temperature tolerance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a high-power power supply is used to maintain voltage quality and reduce noise, then power delivery performance is improved, but idle power consumption increases
Solution Approach 1:
The system dynamically switches between high-power and low-power supply modes based on operational state. During active use, the high-power supply provides superior voltage quality and noise reduction. During standby mode, the system transitions to low-power supply to minimize idle consumption, thus adapting power delivery characteristics to actual operational requirements rather than maintaining a fixed high-power state
Solution Approach 2:
The power supply function is segmented into two distinct modes: high-power supply for active operation and low-power supply for standby operation. This segmentation allows each mode to be optimized independently - the high-power mode prioritizes voltage quality and noise reduction, while the low-power mode prioritizes energy efficiency, eliminating the need to compromise between conflicting requirements in a single unified supply
2Duration of action of moving object
If a low-power power supply is used during standby mode, then battery life is extended, but noise reduction and temperature tolerance are reduced
Solution Approach 1:
The system employs periodic switching between power supply modes based on operational demands. During standby periods, the low-power supply extends battery life. When active operation is detected, the system transitions to high-power supply to provide superior noise reduction and temperature tolerance. This periodic alternation ensures that performance requirements are met during active use while maximizing energy efficiency during idle periods
3Reliability
If features for maintaining voltage quality are always active, then power delivery performance is improved, but power consumption increases
Solution Approach 1:
The system changes key operational parameters of the power supply based on detected triggers. When transitioning from standby to active mode, parameters such as output current capacity, noise filtering strength, and temperature compensation are adjusted from low-power settings to high-performance settings. This dynamic parameter adjustment ensures optimal power delivery performance during active operation while minimizing energy loss during standby
Data Source
AI summary
A technique for adjusting a power supply for a device is provided. The technique includes detecting a low-power trigger for a device; switching a power supply for the device from a high-power power supply to a low-power power supply; detecting a high-power trigger for a device; and switching a power supply for the device from the low-power power supply to the high-power power supply, wherein the high-power power supply consumes a larger amount of power than the low-power power supply, and wherein the high-power power supply provides a greater amount of noise reducing and a greater tolerance to temperature differences than the low-power power supply.