Multiphase DC Converter Phase Control for Radio Power Efficiency
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Solution Overview
Problem
Existing DC voltage converters have imperfect efficiency and result in power loss due to power dissipation, which offsets the reduction of power dissipation in power cables.
Innovation Solution
A multiphase DC voltage converter that synchronizes with a radio network to determine the required number of phases to enable or disable based on predicted DC power consumption, enabling only the necessary phases to provide the required power, thereby increasing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If all phases of the multiphase DC voltage converter are kept enabled to provide sufficient power capacity, then the power delivery capability is improved, but the power loss and efficiency deteriorate due to unnecessary phases consuming power during low-demand periods
Solution Approach 1:
The DC voltage converter dynamically adjusts the number of enabled phases based on real-time power consumption indications received from the radio. The controller receives power consumption data and selectively enables or disables phases to match the actual power demand, transitioning the system from a static all-phases-enabled state to a dynamic adaptive state that optimizes efficiency while maintaining sufficient power delivery capability.
Solution Approach 2:
The system changes the operational parameter of phase enablement status based on power consumption indications. When power consumption is low, fewer phases are enabled; when power consumption is high, more phases are enabled. This parameter adjustment resolves the contradiction by matching the active power delivery capability to the actual demand, reducing unnecessary power loss while maintaining adequate power supply capacity.
2Loss of energy
If the number of enabled phases is reduced to minimize power loss, then the efficiency is improved, but the power delivery capability deteriorates and may become insufficient during high-demand periods
Solution Approach 1:
The controller receives power consumption indications from the radio and uses this feedback to determine the appropriate number of phases to enable. This closed-loop feedback mechanism ensures that the power delivery capability is always sufficient to meet the actual power demand while minimizing power loss by not enabling more phases than necessary. The feedback-driven adjustment resolves the contradiction by preventing both over-provisioning and under-provisioning of power capacity.
Solution Approach 2:
The system proactively adjusts the number of enabled phases based on received power consumption indications before power deficits occur. By anticipating power demand changes and adjusting phase enablement accordingly, the system maintains sufficient power delivery capability while optimizing efficiency, preventing the contradiction between power capacity and power loss from arising in the first place.
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 approach reduces power loss and increases efficiency by ensuring only the required phases are active, thus minimizing power dissipation in the converter and connected conductors.
Implementation Method 1
A multiphase direct current (DC) voltage converter configured to provide DC power to a radio
Data Source
AI summary
Techniques are provided for improving efficiency of a multiphase direct current (DC) voltage converter configured to provide DC power to a radio by varying a number of phases enabled and/or disabled about a time period based upon a number carriers to be transmitted by the radio during the time period.