Load-Sensing Power Strip Circuit for Mixed Outlet Current Control
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Solution Overview
Problem
Current power strips lack the ability to manage and control electrical current to outlets of varying voltage and amperage, leading to issues such as breaker tripping and inefficient power distribution, and they do not provide adequate safety features to prevent hazards like electrocution and fire.
Innovation Solution
A load presence controlled power strip with a microcontroller, current limiting circuit, and sensors that manage current flow to individual outlets based on demand, preventing overloading and incorporating cooling elements to dissipate heat, while allowing for different voltage and amperage outlets to be controlled independently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If power strips provide multiple outlets for multiple devices, then power distribution capability is improved, but risk of overloading and breaker tripping increases
Solution Approach 1:
The power strip divides the total power capacity into separate controllable segments for each outlet. Each outlet can be independently controlled and monitored, allowing the system to distribute power to multiple devices without overloading the circuit by activating only the necessary outlets based on current demand.
Solution Approach 2:
The power strip dynamically adjusts which outlets are active based on real-time current demand and available capacity. The system can turn outlets on or off automatically, and adjust power allocation dynamically to prevent overloading while maximizing power distribution capability.
2Adaptability or versatility
If power strips provide outlets of different voltage and amperage, then versatility is improved, but device complexity increases
Solution Approach 1:
The power strip incorporates multiple outlet types (different voltages and amperages) within a single device, making it universally compatible with various electrical devices. The integrated controller manages all outlet types through a unified system, providing multi-functionality without requiring separate power strips for each device type.
Solution Approach 2:
The power strip uses a microcontroller or controller circuit that can detect and adapt to different voltage and amperage requirements of connected devices. The controller dynamically adjusts power parameters (voltage, current limits) for each outlet based on the connected load, enabling versatile outlet compatibility through programmable parameter control.
3Ease of operation
If power strips provide continuous power to all outlets, then ease of operation is improved, but energy waste from phantom devices increases
Solution Approach 1:
The power strip incorporates sensors and controllers that monitor the state of connected devices at each outlet. The system receives feedback about whether devices are actively drawing power or are in standby mode, and automatically adjusts power delivery accordingly, turning off power to outlets with phantom devices while maintaining availability for actively used outlets.
Solution Approach 2:
The power strip autonomously manages power distribution by detecting the actual power needs of connected devices. The intelligent controller automatically determines which outlets require power and which can be turned off, eliminating the need for manual user intervention while preventing energy waste from phantom devices.
4Ease of operation
If power strips are placed on surfaces for accessibility, then ease of operation is improved, but safety hazards from electrocution and fire increase
Solution Approach 1:
The power strip incorporates protective measures that act in advance to prevent hazards. These include overload protection that prevents excessive current before it can cause fire, ground fault protection that prevents electrocution before it can occur, and thermal management that prevents heat buildup before it becomes a fire hazard.
Solution Approach 2:
The power strip acts as an intermediary between the electrical outlet and connected devices, providing a controlled interface that monitors and regulates power flow. The integrated controller and protection circuits mediate between the power source and devices, detecting and responding to abnormal conditions before they can cause electrocution or fire hazards.
Data Source
AI summary
A power strip and method for providing and controlling power to power strip outlets and for differing amperages and/or voltages is disclosed. The power strip includes a power cord for connecting to a power outlet and a plurality of electrical outlets of the same of differing amperage and voltage connected to receive the electrical current from the power cord. At least one of the plurality of electrical outlets is powered continuously with electrical current from the power outlet. Electrical current from the power outlet to the plurality of electrical outlets is controlled by load presence controlled circuit, current limiting circuit, and/or soft-start circuitry.