Dynamic Output Voltage Control in Power Converters
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Solution Overview
Problem
Existing power converting devices have fixed output voltages that cannot be dynamically adjusted to match varying load statuses, leading to inefficiencies and increased power consumption.
Innovation Solution
A power converting device with a detecting device, signal converter, and controller that dynamically adjusts output voltage by detecting load status through real-time monitoring of operation current and voltage, converting signals to digital format, and comparing against threshold values to generate control signals for the power transistor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the target voltage is set to a higher value to ensure smooth operation under different load statuses, then the system operation reliability is improved, but the power consumption increases
Solution Approach 1:
The patent implements dynamic voltage adjustment by detecting load status changes and automatically modifying the target voltage accordingly. The controller monitors system conditions and adjusts the target voltage from a fixed higher value to an optimized value based on actual load requirements, resolving the contradiction between maintaining high reliability and reducing power consumption.
Solution Approach 2:
The patent changes the voltage parameter from a fixed static value to a dynamic adjustable value. By detecting load status and modifying the target voltage parameter in real-time, the system maintains reliable operation when needed while reducing voltage (and thus power consumption) when full voltage is not required.
2Device complexity
If a fixed control signal is used, then the device structure is simple, but the output voltage cannot be adjusted in real-time according to load status
Solution Approach 1:
The patent introduces a feedback mechanism where the controller detects the actual load status and the resulting output voltage, then adjusts the control signal accordingly. This closed-loop feedback system enables real-time voltage adaptation without requiring complex manual intervention, balancing structural simplicity with operational flexibility.
Solution Approach 2:
The system performs self-adjustment by automatically detecting load changes and modifying its own control parameters. The controller monitors system conditions and autonomously adjusts the target voltage and control signals, eliminating the need for external intervention while maintaining adaptability to varying load conditions.
Data Source
AI summary
A power converting device includes a power transistor, a detecting device, a signal converter and a controller. The detecting device obtains a detection voltage by detecting an output voltage on the output end of the power converting device and a detection current by detecting an operation current of the power transistor. The signal converter converts the detection voltage from a first format to a second format, and converts the detection current from the first format to the second format. The controller receives the detection voltage and the detection current in the second format. Wherein the controller compares the detection voltage with a first voltage threshold value and a second voltage threshold value to adjust a control code, and generates a control signal to a control end of the power transistor according to the control code.