Transformer Power Supply Circuit for Multi-Voltage Memory Testing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current power supply circuits used in system platform testing for memory devices like DRAM typically output only one power supply voltage, making it inconvenient and prone to errors due to the need for manual power connections and susceptibility to electromagnetic radiation, which affects test results.
Innovation Solution
A power supply circuit that includes a transformer module, switch module, control module, and voltage conversion module to intelligently output multiple power supply voltages by controlling switching frequencies and turning-off times, allowing for the generation of pulse voltages with different duty cycles, which are then converted into various DC voltages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a power supply circuit outputs only one power supply voltage, then the circuit structure is simple, but it brings inconvenience to testing on system platforms and requires manual power connections
Solution Approach 1:
The power supply circuit is designed to output multiple different power supply voltages (first power supply voltage and second power supply voltage) through a single circuit, enabling it to support different system platforms without requiring separate power supply circuits for each platform. This multi-functionality eliminates the need for manual power connections and different power supply devices.
2Reliability
If manual power connections are used for different system platforms, then the power supply circuit remains simple, but it is prone to errors and susceptibility to electromagnetic radiation
Solution Approach 1:
The power supply circuit provides multiple power supply voltages through intelligent output control, eliminating the need for manual connection of different power supplies. The control module intelligently selects and outputs appropriate voltages based on testing requirements, reducing human error and electromagnetic interference from multiple power supply connections.
Solution Approach 2:
The power supply circuit incorporates a control module that intelligently controls the output of different power supply voltages. This feedback mechanism ensures accurate voltage selection and output, improving reliability by preventing errors associated with manual connections and reducing susceptibility to electromagnetic radiation through controlled, automated operation.
3Productivity
If multiple power supply voltages are output from a single power supply line, then testing efficiency is improved, but the circuit complexity increases
Solution Approach 1:
The power supply circuit is designed to output multiple different power supply voltages (first power supply voltage and second power supply voltage) through a single circuit, enabling it to support different system platforms without requiring separate power supply circuits for each platform. This multi-functionality eliminates the need for manual power connections and different power supply devices.
Solution Approach 2:
The power supply circuit dynamically adjusts its output voltage based on control signals from the control module. The circuit can switch between different voltage outputs (first power supply voltage and second power supply voltage) as needed, allowing a single circuit to adapt to different testing requirements and system platforms, thereby improving testing efficiency without requiring multiple static power supply circuits.
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
Facilitates efficient system platform testing by eliminating the need for manual power connections and reducing electromagnetic interference, enabling accurate and reliable output of multiple power supply voltages from a single power supply line.
Implementation Method 1
a transformer module, including a primary side first winding connected to the power supplying module and a secondary side winding coupled to the primary side first winding; a switch module having one end connected to the primary side first winding and the other end connected to a grounding terminal
Data Source
AI summary
A power supply circuit includes: power supplying module configured to provide DC voltage; transformer module including primary-side first winding connected to power supplying module and secondary-side winding coupled to primary-side first winding; switch module having one end connected to primary-side first winding and the other end connected to grounding terminal; control module connected to switch module, where control module is configured to control switch module to have different switching frequencies and/or different turning-off times, to enable first pulse voltages with different duty cycles to be formed on primary-side first winding, and second pulse voltages with different duty cycles to be subsequently generated on secondary-side winding; and voltage conversion module having input terminal connected to secondary-side winding and output terminal connected to voltage output terminal of power supply circuit, where voltage conversion module is configured to convert second pulse voltages with different duty cycles on secondary-side winding into respective DC voltages.