Standby Power Reduction via Automatic Disconnection
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Solution Overview
Problem
Appliances in standby or power-saving states still consume significant electricity, and there is a need to further reduce or eliminate power draw when not in use for their primary purpose.
Innovation Solution
A system comprising a power enabling device, a standby power state sensing device, and a power restore device that detects triggers such as inactivity or elapsed time to disconnect the appliance from the main power source, reducing power consumption to zero, and reconnects when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the appliance remains connected to the main power source in standby state, then the appliance can quickly resume operation when needed, but the appliance continues to consume significant electricity
Solution Approach 1:
The sensing device detects standby conditions in advance and triggers the power enabling device to disconnect power before the appliance would normally be turned off, preventing energy waste while ensuring quick resume capability through automated detection and action
Solution Approach 2:
The standby power state sensing device continuously monitors appliance operation status and provides feedback to the power enabling device, which automatically restores power when the appliance transitions from standby to active use, creating a closed-loop control system that eliminates manual intervention
2Loss of energy
If the appliance is completely disconnected from power to eliminate standby consumption, then energy waste is eliminated, but the appliance cannot automatically resume operation when needed
Solution Approach 1:
The power enabling device is configured to automatically restore power to the appliance based on signals from the sensing device that detects when the appliance transitions from standby to active state, eliminating the need for manual user intervention to reconnect power
Solution Approach 2:
The sensing device provides continuous feedback on the appliance's operational state to the power enabling device, enabling automatic detection of when the appliance needs power restoration and triggering the reconnection process without user involvement
Data Source
AI summary
A standby power system for an appliance having a power input coupled to a main power source includes a power enabling device coupled between the main power source and power input of the appliance, a standby power state sensing device coupled to the power enabling device, and a power restore device coupled to the power enabling device.