Motherboard Switch Block for High-Power Expansion Card Support
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Solution Overview
Problem
Conventional motherboards are limited in supporting devices with special specifications or high-power requirements, as they only accommodate devices with specific industry-standard interfaces and power ratings, posing risks of damage to the motherboard or device.
Innovation Solution
The motherboard incorporates a power supply switch and a signal switch, allowing it to provide additional power supply voltages and signal paths beyond industry standards, thereby supporting specially designed or high-power expansion cards without requiring additional connection interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional expansion slots with industry-standard interfaces are used, then device compatibility is maintained, but the ability to support specially designed or high-power devices is limited
Solution Approach 1:
The controller performs preliminary detection of the expansion card's power requirements and signal transmission needs before establishing connections. The system pre-configures the switch block to provide appropriate power supply voltages and activates only the necessary signal paths, preventing over-power conditions and incompatible signal connections that could cause damage.
Solution Approach 2:
The switch block acts as an intermediary between the power supply voltages and the expansion card, and between the platform signal pins and the expansion card. It mediates the connection by selectively activating switches based on detected requirements, ensuring that only compatible and safe connections are established while supporting non-standard power and signal configurations.
2Adaptability or versatility
If additional connection interfaces are added to support special specifications, then device support capability is improved, but motherboard volume and hardware cost increase
Solution Approach 1:
The switch block provides multi-functionality by serving as both a power management component and a signal routing component. A single integrated component performs multiple functions: detecting power requirements, providing multiple power supply voltages, and routing various signal types (data, clock, control signals) through selective switch activation, eliminating the need for separate specialized interfaces.
Solution Approach 2:
The system dynamically configures power supply and signal paths based on the detected expansion card type and requirements. The controller continuously monitors and adjusts which power voltages are provided and which signal paths are activated, allowing the motherboard to adapt its configuration in real-time rather than requiring fixed additional interfaces for each special function.
Data Source
AI summary
A motherboard includes a connector, a controller, a platform controller hub and a switch block. The connector is configured to be electrically connected to an expansion card, and includes a first pin, a second pin and a third pin. The controller includes an analog-to-digital converter coupled to the first pin. The controller identifies a digital voltage value of the first pin via the analog-to-digital converter, and generates a power supply requirement and a signal transmission requirement corresponding to the expansion card based on the digital voltage value. The switch block is coupled to the second pin, the third pin, the controller and the platform controller hub. The switch block provides a power supply voltage to the second pin based on the power supply requirement, and the switch block couples the third pin to the platform controller hub based on the signal transmission requirement.