Active Output Compensation Circuit for Power Supply Voltage Regulation
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Solution Overview
Problem
Conventional power supplies lack the ability to provide reciprocal compensation between multiple output powers, resulting in individual voltage regulation for each load without energy transfer between different voltage sets.
Innovation Solution
An active output compensation circuit that includes a voltage difference judgment unit and compensation channel switches to detect voltage differences between output regulation units and establish electric paths for power compensation, allowing one output power to stabilize another based on loaded conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional power supply uses independent output regulation units for each voltage output, then each output can be regulated independently, but no energy compensation or transfer can occur between different voltage outputs
Solution Approach 1:
The patent merges previously independent output regulation units by introducing a compensation circuit that creates electrical coupling between them. The compensation circuit includes compensation switches that can connect different output terminals, allowing energy transfer and mutual compensation between outputs. This combines the independence of individual regulation with the interconnectivity needed for energy compensation.
Solution Approach 2:
The compensation circuit acts as an intermediary between independent output regulation units. It includes detection circuits that monitor voltage differences between outputs and control circuits that activate compensation switches based on detected conditions. This intermediary mechanism enables energy transfer without compromising the independent regulation capability of each output.
2Adaptability or versatility
If power supply provides multiple output powers with different potentials, then different electronic devices can be powered simultaneously, but no reciprocal compensation between output powers is available
Solution Approach 1:
The patent implements feedback mechanisms through detection circuits that continuously monitor voltage differences between different output terminals. When a voltage difference exceeds a preset threshold, the feedback signal triggers compensation switches to activate, creating a closed-loop control system. This feedback enables automatic energy compensation from higher voltage outputs to lower voltage outputs, improving overall energy efficiency.
Solution Approach 2:
The compensation circuit enables the power supply system to self-regulate and self-compensate for energy imbalances. The detection and control circuits automatically identify when compensation is needed and activate the appropriate compensation switches without external intervention. This self-service mechanism allows the system to optimize its own energy distribution across multiple outputs.
3Loss of energy
If compensation circuit switches are added to enable power compensation between outputs, then energy efficiency improves, but circuit complexity increases
Solution Approach 1:
The compensation circuit is segmented into modular functional blocks: detection circuits for each output pair, control circuits for managing compensation logic, and compensation switches for actual energy transfer. This segmentation allows the complex function to be divided into manageable, independent modules that can be implemented and controlled separately, reducing overall system complexity.
Solution Approach 2:
The compensation switches are designed to be dynamically controllable, changing their state (ON/OFF) based on real-time voltage difference detection. This dynamic behavior allows the circuit to activate compensation only when needed, rather than maintaining a fixed complex structure. The switches adapt their connectivity based on operational conditions, simplifying the effective circuit complexity during normal operation.
Data Source
AI summary
An active output compensation circuit is adopted for use on a power supply which receives input power and regulates to become a plurality of different output power. The power supply has a transformer to transform the input power. The transformer has a secondary side connecting to a plurality of output regulation units to deliver the output power. The active output compensation circuit includes a voltage difference judgment unit electrically connected to the output regulation units and a plurality of compensation channel switches. The compensation channel switches bridge two output regulation units and the voltage difference judgment unit. The voltage difference judgment unit judges the voltage difference of two output power and determines whether to output an ON signal. The compensation channel switches are driven by the ON signal and set ON so that one output power can compensate another output power.