Power Supply Controller Circuit for Current Threshold Hold-Up
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Solution Overview
Problem
Existing power supply systems face inefficiencies due to prolonged periods where current flowing back to the power supply device is below the current threshold, leading to unnecessary power consumption and reduced operating efficiency of electronic devices.
Innovation Solution
A power-saving supply controller circuit with a first and second switch component, a capacitor, and a control circuit that manages the operation of these components to ensure the total current flowing back to the power supply device meets the current threshold, thereby preventing unnecessary power cutoffs and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the power supply device increases current supply to meet the current threshold within specified time, then the power supply device can maintain continuous power supply instruction, but the power consumption increases and may exceed specified time due to environmental factors
Solution Approach 1:
The controller circuit performs preliminary action by detecting the load connection status in advance and proactively adjusting the current supply before the system determines disconnection. When the load is detected to be connected, the controller pre-adjusts the current supply to ensure the current threshold is met within the specified time, preventing unnecessary power cutoffs and avoiding the need to later increase current supply to meet the threshold.
Solution Approach 2:
The controller circuit implements feedback by continuously monitoring the current flowing back to the power supply device and comparing it with the current threshold. Based on this feedback, the controller dynamically adjusts the current supply to maintain it at or above the threshold, ensuring continuous power supply while optimizing power consumption. The feedback loop enables real-time adjustments rather than reactive increases after disconnection detection.
2Use of energy by moving object
If the power supply device stops supplying current when current threshold is not met, then power consumption is reduced, but the operating efficiency of electronic devices decreases due to unnecessary power cutoffs
Solution Approach 1:
The controller circuit performs preliminary detection of load connection status and proactively adjusts current supply before the system can determine disconnection. By detecting the load status in advance and pre-adjusting current to meet the threshold, the controller prevents unnecessary power cutoffs, maintaining continuous operation and productivity while avoiding excessive power consumption.
Solution Approach 2:
The feedback mechanism continuously monitors current levels and load status, enabling the controller to make real-time decisions about current supply adjustment. This feedback loop ensures that power cutoffs only occur when genuinely necessary (actual disconnection) rather than due to temporary current fluctuations, thereby maintaining operating efficiency while reducing unnecessary power consumption.
3Device complexity
If the system uses current threshold detection to determine load connection status, then the detection is simple, but the detection precision is insufficient causing misjudgment of load presence
Solution Approach 1:
The controller circuit enhances detection precision by implementing a feedback mechanism that continuously monitors the current flowing back to the power supply device and compares it with the current threshold. This feedback-based detection is more precise than simple threshold checking because it dynamically adjusts to actual current conditions and can distinguish between temporary current drops and actual disconnection events, reducing misjudgment while maintaining relatively simple circuit complexity.
Solution Approach 2:
The system performs preliminary detection of load connection status before the standard detection interval elapses. By detecting load presence in advance through monitoring current characteristics, the system can make more accurate determination of connection status, reducing misjudgment caused by relying solely on whether current exceeds the threshold within a fixed time period.
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
The controller circuit maintains efficient power supply to loads by ensuring current thresholds are met, reducing power consumption and improving operating efficiency of electronic devices.
Implementation Method 1
A first terminal of the capacitor is connected to the first terminal of the power supply device and a first terminal of a load. A second terminal of the capacitor is connected to a second terminal of the load.
Data Source
AI summary
A power-saving supply controller circuit of supplying power based on electrical specifications is provided. The power-saving supply controller circuit includes a first switch component, a second switch component and a control circuit. A first terminal of the first switch component and a first terminal of a capacitor are connected to a first terminal of a power supply device. Second terminals of the first and second switch components are connected to a second terminal of the power supply device. A first terminal of the second switch component is connected to a second terminal of the capacitor. When a current is supplied from the first terminal of the power supply device, the control circuit controls the first and second switch components such that a current flowing back to the second terminal of the power supply device is not smaller than a specified current.