Programmable Power Management for Ride-Through and Hold-Up
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Solution Overview
Problem
Existing information handling systems face limitations in providing adequate ride-through and hold-up times due to the limited duration of power supply after AC input loss, which can result in inadequate energy for completing critical tasks before shutdown.
Innovation Solution
A power management system that calculates and allocates an energy budget between ride-through and hold-up times, allowing for programmable configuration to satisfy specific requirements by determining the necessary energy portions for each phase and adjusting power consumption accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the bulk capacitor capacity is increased to extend ride-through and hold-up times, then the duration of action is improved, but the device complexity and cost increase
Solution Approach 1:
The patent implements dynamic management of ride-through and hold-up times through a power management system that can programmably configure these parameters. The system includes a ride-through/hold-up manager that dynamically adjusts the duration based on system state and requirements, allowing the effective duration to be extended without permanently increasing capacitor capacity. This dynamic approach resolves the contradiction by making the duration adaptable rather than fixed by hardware size.
Solution Approach 2:
The patent changes the parameter of ride-through and hold-up times from fixed hardware-determined values to programmable software-configurable parameters. The power management system calculates energy budget and allocates it between ride-through and hold-up functions, allowing flexible adjustment of these time parameters without physical modification to the capacitor. This parameter change enables extended effective duration while maintaining the same physical capacitor capacity.
2Duration of action of stationary object
If the bulk capacitor capacity is increased to extend hold-up time, then the duration of action is improved, but the device complexity and cost increase
Solution Approach 1:
The patent implements dynamic management of hold-up time through a power management system that can programmably configure this parameter. The ride-through/hold-up manager dynamically adjusts hold-up duration based on system state, ensuring adequate time for data flush operations without requiring oversized capacitors. This dynamic approach resolves the contradiction by making hold-up time adaptable rather than fixed by hardware size.
Solution Approach 2:
The patent changes the parameter of hold-up time from fixed hardware-determined value to programmable software-configurable parameter. The power management system calculates energy budget and allocates appropriate portion to hold-up function, allowing flexible adjustment of this time parameter without physical modification to the capacitor. This parameter change enables extended effective hold-up time while maintaining the same physical capacitor capacity.
3Adaptability or versatility
If the energy budget is fixed by hardware design, then the device complexity is reduced, but the adaptability to different system requirements deteriorates
Solution Approach 1:
The patent implements a universal power management system that handles multiple functions: calculating total energy budget, allocating energy between ride-through and hold-up functions, monitoring system state, and dynamically adjusting parameters. This multi-functional approach provides adaptability to different system requirements while consolidating complexity into a single management system rather than requiring separate hardware for each function.
Solution Approach 2:
The patent performs preliminary calculation of energy budget and allocation before actual power loss occurs. The power management system pre-configures ride-through and hold-up parameters based on system requirements and available energy, enabling adaptive behavior during power events without requiring complex real-time decisions. This preliminary action reduces operational complexity while maintaining high adaptability.
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 enhances the flexibility and resilience of information handling systems by allowing customizable ride-through and hold-up times, ensuring sufficient energy for completing tasks during power outages and improving system reliability.
Implementation Method 1
a power supply unit having an input for receiving an alternating current input waveform from a bulk capacitor for storing charge
Data Source
AI summary
An information handling system may include a power management system comprising a power supply unit having an input for receiving an alternating current input waveform from a bulk capacitor for storing charge. The power management system may be configured to calculate an energy budget associated with an amount of energy stored in the bulk capacitor that may be used to power at least one information handling resource in response to a loss of the alternating current input waveform. The power management system may further be configured to determine a portion of the energy budget required to satisfy a requirement, the requirement comprising one of a hold-up time requirement and a ride-through requirement of the information handling system. The power management system may further be configured to allocate the energy budget between hold-up and ride-through of the information handling system in a manner that satisfies the requirement.