Bridge Rectifier Switching Circuits Reduce Power Dissipation
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Solution Overview
Problem
Conventional bridge rectifiers experience reliability and stability issues due to high power dissipation, which affects the efficiency and functionality of power adapting devices.
Innovation Solution
The use of switching circuits in combination with driving circuits replaces traditional diodes, reducing power dissipation and enhancing the reliability and stability of the bridge rectifier by leveraging low impedance switching circuits and corresponding driving circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional diodes are used in bridge rectifier, then the circuit structure is simple, but the power dissipation is high causing reliability and stability issues
Solution Approach 1:
The patent changes the operating parameters of the rectifier circuit by replacing diodes with actively controlled switching circuits. The switching circuits operate with controlled impedance states (high impedance when off, low impedance when on), allowing optimization of power dissipation characteristics while maintaining rectification function. This parameter change enables significant reduction in power loss compared to conventional diode-based rectifiers.
Solution Approach 2:
The patent substitutes the passive mechanical diode component with an actively controlled electronic switching system. The switching circuits are controlled by driving circuits that regulate their impedance states dynamically, replacing the fixed mechanical rectification mechanism with a controllable electronic system that achieves lower power dissipation and improved reliability.
2Reliability
If switching circuits with driving circuits are used to replace diodes, then power dissipation is reduced, but the circuit complexity increases
Solution Approach 1:
The patent divides the rectifier circuit into modular segments, with each switching circuit paired with its dedicated driving circuit. This segmentation allows independent optimization and control of each rectification path, improving overall reliability while organizing the increased complexity into manageable, repeatable modules. Each module can be designed and tested independently before integration.
Solution Approach 2:
The patent introduces driving circuits as intermediary components between the control system and the switching circuits. These driving circuits act as mediators that translate control signals into appropriate switching actions, isolating the complexity of switching control from the main rectifier circuit and improving overall system reliability through layered control architecture.
Data Source
AI summary
The present invention disclosed a bridge rectifier comprising a first switching circuit, a second switching circuit, a third switching circuit, a fourth switching circuit, a first driving circuit, a second driving circuit, a third driving circuit, and a fourth driving circuit. The first driving circuit is electrically connected to the first switching circuit, the second driving circuit is electrically connected to the second switching circuit, the third driving circuit is electrically connected to the third switching circuit, the fourth driving circuit is electrically connected to the fourth switching circuit. In the disclosure, the bridge rectifier should be implemented by the combination of switch circuits with driving circuits. Such that the power dissipation of bridge rectifier could be significantly reduced to improve the function of the overall circuit due to the low impedance of the switching circuit in a closed state.