Charging Module Power Gating for Low Standby Consumption
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Solution Overview
Problem
Existing charging piles consume high standby power, leading to significant energy waste and increased costs when not in use.
Innovation Solution
A charging device with a switch component and auxiliary power supply system that controls power distribution to minimize standby consumption by turning off power to unnecessary components when not in use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the charging module remains in standby state to be ready for charging, then the charging availability is improved, but the standby power consumption increases
Solution Approach 1:
The charging module dynamically adjusts its operational state based on charging demand. The control unit monitors the charging state and dynamically switches between full operation mode (when charging is needed) and reduced operation mode (when not charging), allowing the system to maintain availability while minimizing energy consumption during idle periods
Solution Approach 2:
The charging module employs periodic monitoring of charging requirements and alternates between active and standby states. The control unit periodically assesses whether charging is needed and activates or deactivates power-consuming components accordingly, creating a rhythmic on-off pattern that reduces overall energy consumption while maintaining readiness
2Speed
If the rectifier circuit and control units remain powered to maintain charging readiness, then the charging response time is improved, but the energy waste increases
Solution Approach 1:
The charging module is segmented into multiple independent power-consuming components: the rectifier circuit, auxiliary power supply, and control units. The control unit can selectively activate or deactivate each segment based on charging needs, allowing partial shutdown of non-essential components while maintaining core functionality for quick charging response
Solution Approach 2:
The system performs preliminary assessment of charging requirements before fully activating power-consuming components. The control unit monitors for charging requests and only activates the rectifier circuit and control units when charging is actually needed, avoiding unnecessary energy consumption while maintaining rapid response capability
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
Significantly reduces standby power consumption and energy waste in charging modules, thereby lowering operational costs and improving energy efficiency.
Implementation Method 1
The auxiliary power supply is configured to convert electric energy input by an input end of the auxiliary power supply, to supply power to the first control unit
Implementation Method 2
The rectifier circuit is configured to convert an alternating current input by an alternating current power supply into a direct current
Data Source
Figure 1~3
Figure 4A~4B
Figure 4C~4E
AI summary
A charging device is provided. The charging device includes a charging module (100) and a second control unit. The charging module (100) includes a switch component, an auxiliary power supply, a first control unit, and a rectifier circuit. The auxiliary power supply supplies power to the first control unit, and the first control unit is configured to control the rectifier circuit. A first end of the switch component is connected to an output end of the rectifier circuit or an output end of an alternating current power supply, and a second end of the switch component is connected to an input end of the auxiliary power supply. The second control unit is configured to control turn-on and turn-off of the switch component. The auxiliary power supply supplies power to the first control unit in response to turn-on of the switch component. The auxiliary power supply stops, in response to turn-off of the switch component, supplying power to the first control unit.