Thyristor Converter Power Supply Sharing for Lower Circuit Complexity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
AC-DC converters with thyristors face challenges due to the complexity and cost of power supply circuits required for thyristors, which occupy significant space and incur high costs.
Innovation Solution
The proposed solution involves an AC-DC converter design with a first thyristor and two power supply circuits, including a rectifying element and a capacitor, where the thyristor's cathode is coupled to the power supply circuit through a switch, and the converter includes MOS transistors and diodes to manage voltage and current efficiently, optimizing power supply structure and reducing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a power supply circuit is provided for each thyristor, then the thyristor can be properly controlled, but the circuit structure becomes complex and occupies significant space
Solution Approach 1:
The patent combines multiple power supply circuits into a shared configuration where a first power supply circuit and a second power supply circuit are共用 by multiple thyristors. The circuits are merged through common connection nodes, allowing multiple thyristors to draw power from the same supply infrastructure rather than requiring dedicated independent power supplies for each device.
Solution Approach 2:
The power supply circuits are designed with universal functionality to serve multiple thyristors simultaneously. The first power supply circuit connects to both the first and second thyristors through different switches, and the second power supply circuit similarly serves multiple thyristors, making the power supply system multi-functional rather than single-purpose.
2Reliability
If a power supply circuit is provided for each thyristor, then the thyristor can be properly controlled, but the cost increases significantly
Solution Approach 1:
The patent combines multiple power supply circuits into a shared configuration where a first power supply circuit and a second power supply circuit are共用 by multiple thyristors. The circuits are merged through common connection nodes, allowing multiple thyristors to draw power from the same supply infrastructure rather than requiring dedicated independent power supplies for each device.
Solution Approach 2:
The power supply circuits are designed with universal functionality to serve multiple thyristors simultaneously. The first power supply circuit connects to both the first and second thyristors through different switches, and the second power supply circuit similarly serves multiple thyristors, making the power supply system multi-functional rather than single-purpose.
3Reliability
If a power supply circuit is provided for each thyristor, then the thyristor can be properly controlled, but the space occupation increases
Solution Approach 1:
The patent combines multiple power supply circuits into a shared configuration where a first power supply circuit and a second power supply circuit are共用 by multiple thyristors. The circuits are merged through common connection nodes, allowing multiple thyristors to draw power from the same supply infrastructure rather than requiring dedicated independent power supplies for each device.
Solution Approach 2:
The power supply circuits are designed with universal functionality to serve multiple thyristors simultaneously. The first power supply circuit connects to both the first and second thyristors through different switches, and the second power supply circuit similarly serves multiple thyristors, making the power supply system multi-functional rather than single-purpose.
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 design simplifies the power supply structure, reduces space occupation, and lowers costs while maintaining efficient AC-DC conversion, improving the overall performance and efficiency of the converter.
Implementation Method 1
the second power supply circuit comprising a first rectifying element coupled to the second node of the first power supply circuit and coupled to the third node
Implementation Method 2
the second power supply circuit comprises a first capacitor comprising a first electrode connected to the cathode of the first thyristor
Implementation Method 3
the first switch is a first MOS transistor
Data Source
AI summary
The present description concerns a converter comprising an AC-DC conversion stage comprising a first thyristor, a first power supply circuit delivering a first reference voltage between a first node and a second node, and a second power supply circuit delivering a second reference voltage between third and fourth nodes, the cathode of the first thyristor being coupled to the first node of the first power supply circuit by a first switch and being connected to the fourth node, the second power supply circuit comprising a first rectifying element coupled to the second node of the first power supply circuit and coupled to the third node.