Power Consumption Detection Circuit with Path Switches
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Solution Overview
Problem
Electronic devices cannot detect and specify power consumption by individual components, and when charging, they only provide total power consumption data without separating it between functioning parts and the battery.
Innovation Solution
An electronic device with a current detection module, path switches, and control circuits that allow the processing unit to determine power consumption of functioning parts and the battery by controlling current flow paths and detecting voltage, enabling separate power consumption analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the electronic device uses a single current detection module for total power consumption detection, then the device complexity is reduced, but the measurement precision of individual component power consumption is insufficient
Solution Approach 1:
The power consumption detection system is segmented into multiple independent detection paths. A first current detection module detects current for functioning parts through a first path switch, while a second current detection module detects current for battery recharging through a second path switch. This segmentation enables precise measurement of individual component power consumption without requiring a single complex detection system.
2Device complexity
If the electronic device provides only total power consumption data, then the device complexity is reduced, but the information completeness for users is insufficient
Solution Approach 1:
The power consumption information is segmented into distinct categories: functioning parts power consumption and battery recharging power consumption. The processing unit separately calculates and provides these values to the display module, ensuring complete information delivery without requiring complex aggregated data processing.
Solution Approach 2:
The system implements feedback by displaying real-time power consumption information for different components. The display module shows the first power consumption value for functioning parts and the second power consumption value for battery recharging, providing continuous feedback to users about energy usage patterns.
3Measurement precision
If the electronic device uses path switches to separate current detection paths, then the measurement precision of individual components is improved, but the device complexity increases
Solution Approach 1:
The path switches are configured to dynamically change current flow paths based on detection needs. The first path switch connects the first current detection module to detect functioning parts current, while the second path switch connects the second current detection module to detect battery current. This dynamic switching enables precise component-level measurement with minimal permanent circuit complexity.
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
Enables the electronic device to accurately detect and display power consumption of individual components and the battery, providing users with detailed energy usage information during both battery operation and charging.
Implementation Method 1
The current detection module 40 detects the current and converts the current to a detection voltage
Data Source
AI summary
An electronic device includes a current detection module, two path switches, a processing unit, and two control circuits. Two terminals of the current detection module are connected to an external power port and a battery. The two path switches are connected to the two terminals. A first control circuit is connected to the processing unit and to one path switch. A second control circuit is connected to the processing unit and to another path switch. When the electronic device is powered on, whether using power from the battery or from the external power port, the device can analyze the power consumed by the functioning parts of the device, including (when power is taken from the external power port) the amount of current taken in charging the battery.