Voltage Converter Determination Unit Circuit Complexity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing voltage conversion devices have complex control circuits that increase circuit complexity, particularly when determining which voltage connector is used for input, leading to increased costs and circuit complexity.
Innovation Solution
A voltage conversion device with a determination unit featuring diodes and transistors that simplify the identification of the input voltage connector, allowing for corresponding control to output appropriate direct voltage or current, using a first diode and second diode connected in anti-parallel, a bipolar transistor, and a MOS-FET transistor to manage switching and voltage differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a control circuit is used to determine which voltage connector is used for input and perform corresponding control to output appropriate direct voltage or current, then the voltage conversion device can adapt to different input configurations, but the control circuit becomes complicated and circuit complexity increases
Solution Approach 1:
The determination unit automatically detects which voltage connector is being used through the diode configuration and voltage difference detection, eliminating the need for complex manual selection or feedback circuits. The circuit self-determines the input source and triggers appropriate control signals.
Solution Approach 2:
Diodes are introduced as intermediary components to create distinct voltage difference patterns for different input connectors. These diodes act as mediators that translate the physical connection state into detectable electrical signals without requiring complex sensing circuits.
2Measurement precision
If feedback circuits are used for secondary side switching control to determine input connector, then the voltage conversion can be controlled accurately, but the circuit complexity increases due to feedback requirements
Solution Approach 1:
The patent replaces complex feedback control mechanisms with a direct electrical detection approach using diodes and voltage difference measurement. Instead of using feedback loops to determine connector status, the system directly senses the voltage differences created by diode conduction states.
Solution Approach 2:
The feedback function is extracted and replaced by a dedicated determination unit that directly detects connector status through voltage differences. This separates the detection function from the control function, simplifying the overall circuit architecture.
3Adaptability or versatility
If two ways terminal and jumper are set on the primary side for switching control, then different voltage outputs can be achieved, but the circuit complexity increases
Solution Approach 1:
The determination unit automatically identifies the active voltage connector through voltage difference detection and self-generates the appropriate control signals, eliminating the need for manual terminal switching or jumper configurations.
Solution Approach 2:
Diodes serve as intermediary components that create distinct voltage difference signatures for different input connectors, enabling the control unit to automatically identify the active connector and select the appropriate output voltage without manual intervention.
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
This configuration enables a simpler circuit to determine the input voltage connector and perform corresponding control, reducing circuit complexity and costs compared to prior art.
Implementation Method 1
the first diode D1 and the second diode D2 are alternately conducting forward in accordance with a flow of the alternating current
Implementation Method 2
a current flows through a primary winding W of the transformer T to generate an induced current in a secondary winding W' and generate a voltage difference across the resistor R
Data Source
Figure 1
Figure 2~3
AI summary
An embodiment of the present application provides a voltage conversion device configured to convert an inputted alternating voltage into a direct voltage or current, the voltage conversion device including at least a first voltage connector and a second voltage connector, where the alternating voltage is fed to the voltage conversion device via either the first voltage connector or the second voltage connector, the voltage conversion device further including: an electromagnetic filter unit; a conversion unit; a determination unit configured to determine which one of the first voltage connector and the second voltage connector is used to feed the alternating voltage into the voltage conversion device; a control unit controlling the conversion unit based on a determination result of the determination unit such that the direct voltage or current outputted by the conversion unit corresponds to the determination result, wherein the determination unit is electrically connected the first voltage connector and the second voltage connector. This application can determine a voltage connector for feeding via a simple circuit and can perform corresponding control to output a corresponding direct voltage or current.