Intelligent Pre-Regulator Circuit for Vehicle Power Heat Control
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Solution Overview
Problem
Traditional power supply units for vehicles face challenges in managing heat effectively, particularly when converting power levels from 50 watts to 100 watts, due to complex control logic and temperature management issues in buck-boost converters, leading to unreliable product quality and inefficient power transformation for diverse electronic devices with varying voltage specifications.
Innovation Solution
A power supply unit utilizing an intellectual pre-regulator that associates a voltage boost part with a voltage dropping part through a detection-control system, simplifying heat management and enhancing reliability by controlling a switching element and voltage boost circuit to match output voltage to electronic device requirements, thereby minimizing heat consumption and improving product reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a buck-boost converter is used to achieve both voltage boost and buck actions, then the voltage conversion capability is improved, but the control logic becomes complicated and heat management becomes difficult
Solution Approach 1:
The invention divides the voltage conversion function into two separate circuits: a boost converter for voltage boosting and a buck converter for voltage dropping. Each circuit has its own simple control logic, avoiding the complexity of a single buck-boost converter that must handle both functions. The controller selectively activates either the boost or buck circuit based on whether voltage boosting or dropping is needed.
2Adaptability or versatility
If a pre-boost and drop type converter with independent boost and buck converters is used, then the voltage conversion flexibility is improved, but the heat management efficiency deteriorates due to requiring heat management for 200 watts to achieve 100 watt output
Solution Approach 1:
The invention merges the control of the boost converter and buck converter into a single unified controller that intelligently selects which circuit to activate. This ensures that only the necessary circuit (either boost or buck) operates at any given time, rather than both operating simultaneously as in independent pre-boost and drop converters, thereby reducing overall power loss and heat generation.
3Temperature
If FETs are used separately without inclusion in semiconductor chip due to heat management difficulty, then the heat management becomes easier, but the product quality control and reliability deteriorate
Solution Approach 1:
The invention segments the power conversion function into separate boost and buck circuits with separate FETs, allowing each FET to be optimized for its specific function and heat dissipation characteristics. This segmentation enables better thermal management while maintaining reliability through dedicated control of each circuit path.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables efficient heat management and high-power output while simplifying the circuit structure, enhancing the reliability and efficiency of power supply units, particularly in vehicle applications, by minimizing heat consumption and ensuring precise voltage matching for diverse electronic devices.
Implementation Method 1
a voltage boost circuit part arranged before所述voltage dropping part,所述voltage boost circuit part is controlled by所述detection-control part to produce a voltage higher than the battery voltage from the voltage of the battery connected to所述input port
Data Source
AI summary
A power supply unit using intellectual pre-regulator which includes an input port connected to a power source realized as battery or generator (hereinafter, it is called as ‘battery’), an output port connected to an electronic device, a voltage dropping part connected between said input port and said output port to drop the input voltage to match it to the voltage required by said electronic device, and a detection-control part to detect the voltage required by said electronic device connected to said output port and to transfer it to said voltage dropping part.