Intelligent AC Conversion Circuit for Multi-Grid Voltage Adaptation
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Solution Overview
Problem
Electric devices designed for specific state grid parameters, such as 110 VAC or 220 VAC, cannot be used in regions with different voltage standards, leading to resource wastage and degraded user experience.
Innovation Solution
An alternating current conversion circuit that includes an intelligent conversion circuit, a voltage sampling circuit, and a master control circuit, capable of outputting standard voltages and converting non-standard voltages, ensuring compatibility with various state grid parameters through voltage sampling and intelligent conversion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electric devices are designed for specific state grid parameters (110 VAC or 220 VAC), then the device can operate reliably with stable voltage, but the device cannot be used in regions with different voltage standards
Solution Approach 1:
The patent implements a dynamic voltage conversion system that can adapt its operation mode based on the detected input voltage. The controller dynamically switches between pass-through mode (when input voltage matches target voltage) and conversion mode (when input voltage differs from target voltage), enabling the device to maintain reliable operation across different state grid parameters while preserving voltage stability through active control.
Solution Approach 2:
The patent designs a universal AC-DC converter that can handle multiple input voltage standards (110 VAC, 220 VAC, and other non-standard voltages) through a single device. The system incorporates a voltage detection circuit and controller that automatically identify the input voltage type and switch between pass-through and conversion modes, making the device compatible with various state grid parameters without requiring multiple dedicated devices.
2Adaptability or versatility
If a voltage conversion device is designed to support multiple voltage standards, then the adaptability improves, but the device complexity increases
Solution Approach 1:
The patent merges the voltage detection function, control logic, and voltage conversion functionality into a single integrated system. The controller unit combines the intelligence to detect input voltage types and the capability to control the AC-DC converter switching between pass-through and conversion modes, reducing overall system complexity compared to having separate independent circuits for each function.
Solution Approach 2:
The patent extracts the voltage detection and control functionality into a separate controller unit that operates independently from the main power conversion circuitry. This modular approach allows the controller to manage the switching between operation modes without complicating the main power conversion path, simplifying the overall device architecture while maintaining multi-voltage support capability.
3Loss of energy
If the device directly passes through the input voltage without conversion, then the energy loss is reduced, but the device cannot provide voltage stability when input voltage is non-standard
Solution Approach 1:
The patent implements a dynamic operation mode switching mechanism that transitions between pass-through mode (minimal energy loss) and active conversion mode (voltage stability ensured) based on real-time voltage detection. When the input voltage matches the target voltage, the system operates in pass-through mode to minimize energy loss; when the input voltage is non-standard, the system automatically switches to conversion mode to ensure voltage stability, thus dynamically optimizing both energy efficiency and reliability.
Solution Approach 2:
The patent incorporates a feedback mechanism where the controller continuously monitors the input voltage through a detection circuit and adjusts the operation mode accordingly. The controller receives feedback about the input voltage status and automatically decides whether to enable pass-through or conversion mode, ensuring that voltage stability is maintained when needed while minimizing energy loss during normal operation through intelligent feedback-based control.
Data Source
AI summary
Disclosed is an alternating current conversion circuit including an AC input end, an AC output end, an intelligent conversion circuit, a voltage sampling circuit and a master control circuit. The intelligent conversion circuit is configured to output a standard voltage inputted by the AC input end to the AC output end, and convert a non-standard voltage inputted by the AC input end into a standard voltage and output the standard voltage converted to the AC output end, under the control of the master control circuit. The voltage sampling circuit is configured to sample the voltage inputted by the AC input end and the voltage outputted by the intelligent conversion circuit. The invention provides an intelligent AC conversion, allowing the electronic devices which are designed for a single power grid to be adapted to various power grids.