CPLD-Integrated Power Distribution Board With Dual-Buck Conversion
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Solution Overview
Problem
The high power consumption associated with supplying electricity to immersive servers using a 220-Volt alternating current by a power supply unit (PSU) is a significant issue.
Innovation Solution
A power distribution board incorporating a complex programmable logic device (CPLD) and buck chips to convert direct current (DC) voltage to lower voltages, reducing power consumption during transmission and conversion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If 220-Volt alternating current is supplied to immersive servers through a power supply unit, then the server receives sufficient power, but power consumption during transmission and conversion becomes excessively high
Solution Approach 1:
The patent changes the voltage parameter from high voltage (220V AC) to low voltage (48V DC) at the distribution board level. This parameter change reduces power consumption during transmission while maintaining sufficient power delivery to servers through optimized DC-DC conversion stages closer to the load.
Solution Approach 2:
The patent replaces the traditional AC power supply system with a DC power distribution system. By substituting AC with DC and using DC-DC conversion instead of AC-DC rectification, the system eliminates unnecessary conversion stages, reducing power consumption and improving overall efficiency.
2Loss of energy
If voltage is lowered through buck conversion, then power consumption is reduced, but the conversion process requires additional components and circuit complexity
Solution Approach 1:
The patent segments the power conversion process into multiple stages: a first buck converter for initial voltage reduction and a second buck converter for final voltage regulation. This segmentation allows each converter to operate at optimal efficiency points while distributing the conversion burden, reducing overall energy loss despite increased component count.
Solution Approach 2:
The patent introduces an intermediate voltage stage (48V DC) as a mediator between the high-voltage input and low-voltage server requirements. This intermediary voltage level allows for efficient two-stage buck conversion, where each stage operates within optimal efficiency ranges, reducing total power consumption compared to single-stage conversion.
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
Effectively lowers power consumption by converting DC voltage to lower voltages, enhancing efficiency in power transmission and conversion processes.
Implementation Method 1
The first buck chip is connected to the complex programmable device, and configured to receive a first direct current voltage, lower the first direct current voltage to a first voltage, and supply the first voltage to the programmable device
Data Source
AI summary
A power distribution board includes a complex programmable logic device (CPLD), a first buck chip and a second buck chip. The first buck chip is connected to the complex programmable logic device. The first buck chip is configured to receive a first direct current (DC) voltage, lower the first DC voltage to a first voltage, and supply the first voltage to the complex programmable logic device. The second buck chip is configured to receive a second direct current voltage, lower the second direct current voltage to a second voltage, and supply the second voltage to a power module. The first direct current voltage and the second direct current voltage has a same voltage value.