Adaptive Charging System for Efficient Emergency Start Devices
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Summary
Problems
Existing automotive emergency start power supply charging systems require dedicated chargers matching specific internal charging circuit parameters, leading to inefficiencies and potential damage when charger power deviates from designed specifications.
Innovation solutions
A charging system with an inductor, switches, voltage acquisition circuit, and control circuit that dynamically adjusts switch states based on real-time voltage to stabilize output, using MOS transistors and PWM control for adaptive voltage conversion.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If dedicated charging management chips with fixed parameters are used, then charging stability is improved, but charging efficiency deteriorates when charger power does not match designed specifications
Why choose this principle:
The patent implements dynamic parameter adjustment by using a control circuit that continuously monitors charging current and voltage, then dynamically adjusts the duty cycle of PWM signals to optimize charging parameters in real-time based on actual charger output characteristics
Principle concept:
If dedicated charging management chips with fixed parameters are used, then charging stability is improved, but charging efficiency deteriorates when charger power does not match designed specifications
Why choose this principle:
The patent changes charging parameters dynamically by adjusting the duty cycle of switch tubes based on detected charging current and voltage levels, allowing the system to adapt to different charger power levels and maximize charging efficiency under varying conditions
Application Domain
Data Source
AI summary:
A charging system with an inductor, switches, voltage acquisition circuit, and control circuit that dynamically adjusts switch states based on real-time voltage to stabilize output, using MOS transistors and PWM control for adaptive voltage conversion.
Abstract
A charging system includes a charging input interface, an inductor, a first switch, a second switch, a first voltage acquisition circuit, and a control circuit. The charging input interface is connected to the inductor, which is connected to the first switch and the second switch. The second switch is configured for electrical connection with an energy storage power supply. The first voltage acquisition circuit is connected to the second switch and configured to detect the first voltage output by the charging system in real time. The control circuit cyclically controls the switch on/off time of the first switch based on the first voltage. During the charging process of the charging system, when the first voltage is less than the first preset voltage value, the control circuit controls the first switch to conduct and starts cyclic control. The state of the first switch is opposite to that of the second switch.