AC to DC Converter with Enabling Circuit for Low Power Standby
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Solution Overview
Problem
Existing AC/DC converter systems consume power continuously even when no load is present, leading to decreased efficiency and reduced system longevity due to their inherent design and electrical structure.
Innovation Solution
The development of AC/DC converter systems equipped with an enabling circuit that senses load conditions and switches between active and inactive states, entering an extremely low power standby mode when no load is detected, using a power storage device to supply power for standby operations and ensuring the system remains operational until needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the converter remains active to ensure immediate power availability, then the system responds quickly to load demands, but power consumption increases continuously even when no load is present
Solution Approach 1:
The converter dynamically transitions between active and standby states based on real-time load detection. The enabling circuit monitors load conditions and switches the converter state accordingly, making the system adaptive rather than static. This resolves the contradiction by allowing fast response when needed while conserving energy when idle.
Solution Approach 2:
The system employs periodic monitoring of load conditions through the enabling circuit, which detects whether a load is present and triggers appropriate state transitions. This periodic check mechanism ensures the converter can quickly activate when load is detected while maintaining low power consumption during extended idle periods.
2Use of energy by moving object
If the converter enters standby mode to reduce power consumption, then energy efficiency improves, but the system may experience delayed response when load is required
Solution Approach 1:
The enabling circuit performs preliminary detection of load conditions continuously or periodically, even in standby mode. This preliminary monitoring ensures that when a load is connected, the system can quickly transition to active state without significant delay, thus maintaining fast response while benefiting from standby power savings.
Solution Approach 2:
The system implements feedback through the enabling circuit that continuously monitors load presence and provides real-time information to the control logic. This feedback mechanism allows the converter to respond immediately to load demands while maintaining low power consumption during idle periods, resolving the speed-power consumption tradeoff.
3Reliability
If the converter operates continuously to maintain output readiness, then system reliability improves, but operational longevity decreases due to increased wear and heat
Solution Approach 1:
The converter dynamically adjusts its operational state based on actual load requirements, transitioning between active and standby modes. This dynamic operation maintains system reliability by ensuring immediate power availability when needed while extending component longevity by reducing continuous operation stress, heat generation, and wear on electrical components.
Solution Approach 2:
The enabling circuit autonomously monitors load conditions and controls the converter state transitions without external intervention. This self-service mechanism ensures the system maintains reliability by automatically activating when load is present while preserving longevity through automatic standby engagement during idle periods, reducing unnecessary stress on the system.
4Device complexity
If the converter is designed with simple on/off control, then device complexity is reduced, but the system cannot adapt to varying load conditions efficiently
Solution Approach 1:
The enabling circuit incorporates feedback mechanisms that monitor output parameters such as voltage or current to detect load presence. This feedback enables the simple control circuit to adapt to varying load conditions by automatically transitioning between active and standby states based on real-time measurements, maintaining low complexity while achieving high adaptability.
Solution Approach 2:
The system replaces complex mechanical or manual load detection mechanisms with electronic sensing through the enabling circuit. This substitution maintains simplicity by using basic electronic parameter sensing (voltage, current) rather than complex mechanical systems, while achieving efficient adaptability to different load conditions through electronic state transitions.
Data Source
AI summary
An AC to DC converter system is disclosed in which a conversion circuit for converting an AC input signal to a DC output signal is operably coupled with an enabling circuit designed for sensing and output parameter indicative of the presence or absence of a load at the DC output. The system is designed so that the conversion circuit operates in an inactive standby state when there is no load, and in an active state for supplying DC power when a load is present. The enabling circuit is configured to operate using low power.