Power supply system for power-consuming device
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Solution Overview
Problem
The challenge of ensuring timely adjustment of power-consuming device control strategies when switching between different power grids, such as strong and weak grids, often results in potential damage or malfunction due to manual operation inefficiencies.
Innovation Solution
A power-consuming device equipped with a switch circuit, first and second processing devices, and a controller that automatically detects the type of external power supply through communication protocols, allowing for timely adjustment of control strategies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual operation is used to adjust control strategy when switching power grids, then the user has control over the adjustment process, but the timeliness of adjustment cannot be ensured when power grid type switches frequently
Solution Approach 1:
The power-consuming device automatically detects the power grid type and adjusts its control strategy without requiring user intervention. The detection module identifies whether the device is connected to a strong grid or weak grid, and the controller automatically selects the appropriate control strategy, enabling the system to serve itself and eliminating manual operation delays.
Solution Approach 2:
The system implements automatic feedback through the detection module that continuously monitors the power grid type. When a change in power grid type is detected, the feedback mechanism triggers the controller to adjust the control strategy accordingly, ensuring timely response to grid conditions without manual intervention.
2Reliability
If manual adjustment of control strategy is delayed, then the user may not respond in time to power grid switching, but automatic detection requires additional system components and complexity
Solution Approach 1:
A detection module is introduced as an intermediary component between the power grid and the controller. This module automatically identifies the power grid type and provides this information to the controller, which then selects the appropriate control strategy. The intermediary handles the complex detection and decision-making process, keeping the overall system design manageable while improving reliability.
Solution Approach 2:
The controller is designed with multi-functionality to handle both strong grid and weak grid operating conditions. It contains multiple control strategies that can be selected based on the detected power grid type, making it a universal controller that adapts to different grid conditions without requiring separate control systems for each grid type.
3Object-affected harmful factors
If the control strategy does not match the current power grid type, then the power-consuming device may malfunction or be damaged, but frequent manual adjustment increases operational complexity
Solution Approach 1:
The system takes preliminary anti-action by proactively detecting the power grid type before any malfunction can occur. The detection module continuously monitors grid conditions and preemptively adjusts the control strategy to match the detected grid type, preventing equipment damage before it happens rather than reacting after a problem arises.
Solution Approach 2:
The power-consuming device automatically protects itself by detecting power grid type changes and adjusting control strategies without user intervention. This self-service mechanism ensures the device always operates with the appropriate control strategy for the current grid type, eliminating the need for users to manually adjust settings and reducing operational complexity.
Data Source
AI summary
A power supply system for a power-consuming device, which includes: a switch circuit, first and second processing devices, and a controller. The switch circuit is connected to an external power supply and the power-consuming device. The external power supply includes first and second power supplies. The switch circuit is configured to connect one of the first and second power supplies to the power-consuming device. The first and second processing devices are capable of communicating with each other. The controller is connected to the first and second processing devices and configured to control the first and second processing devices to enter a power type detection mode. In the power type detection mode, the first and second processing devices are respectively connected to the first power supply and the power-consuming device. The second processing device is configured to determine a type of the external power supply according to a communication result.