Real-Time Power Output Charging Circuit
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Solution Overview
Problem
Linear charging circuits experience significant energy wastage due to the variable potential difference between input and output voltages, which is not effectively managed by existing technologies.
Innovation Solution
A charging circuit configuration that includes a power management IC, controller, switching circuit, and feedback circuit, where the power management IC adjusts output power based on feedback signals from the controller and battery, utilizing MOS switches and error amplifiers to optimize charging current and voltage, thereby minimizing energy wastage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If linear charging circuits are used to provide energy, then the charging function is achieved, but significant energy is wasted due to variable potential difference between input and output voltages
Solution Approach 1:
The patent employs a switching circuit with MOS transistors that dynamically adjust the charging process based on real-time voltage and current conditions. The controller modulates the switching states of MOS devices to optimize power transfer efficiency, transforming the static linear charging approach into a dynamic switching-based system that adapts to varying potential differences between input and output voltages
Solution Approach 2:
The patent implements a feedback circuit that continuously monitors the charging status, including battery voltage, current, and charging power. This feedback information is processed by the controller to adjust the switching circuit's operation in real-time, enabling closed-loop control that minimizes energy wastage while maintaining safe and efficient charging
2Loss of energy
If switching circuits with MOS devices are used to reduce energy wastage, then energy efficiency is improved, but the device complexity increases
Solution Approach 1:
The patent integrates multiple functions into unified circuit blocks: the switching circuit combines power conversion and regulation functions, the feedback circuit consolidates sensing and signal processing, and the controller integrates decision-making and control output. This functional merging reduces the overall system complexity despite the adoption of switching-based energy-efficient architecture
Solution Approach 2:
The controller is designed to perform multiple functions: it processes feedback signals, determines charging parameters, controls switching states, and monitors charging safety. This multi-functionality reduces the need for separate dedicated circuits for each function, thereby managing complexity while achieving energy efficiency through coordinated control of the MOS switching circuit
Data Source
AI summary
A battery charging circuit includes a power management IC, a controller, and a feedback circuit. The power management IC is configured to manage the power charging to a battery. The controller is configured to provide a preset value of current and a preset value of voltage. The feedback circuit is coupled to the power management IC and the controller and the battery. The feedback circuit compares the preset value of current with a charging current to the battery, and compares the preset value of voltage with a charging voltage to the battery to obtain results of comparison, and provides a feedback signal to the power management IC according to the comparisons. The power management IC decreases or increases power output upon the comparisons.