Programmable Logic Turbo Mode With Deep Sleep Power Headroom Control
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Solution Overview
Problem
Programmable logic devices (PLDs) face challenges in efficiently managing power consumption due to unpredictable system designs, leading to inefficiencies in power usage and operation, particularly in applications requiring complex calculations.
Innovation Solution
Implementing power headroom monitoring systems that allow PLDs to adjust operation based on available power headroom, switching between turbo processing mode for increased performance and deep sleep mode for reduced power consumption, using variable frequencies and voltages, and sector-based power control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a PLD operates in turbo mode to consume additional power headroom, then processing speed and performance are improved, but power consumption increases
Solution Approach 1:
The PLD dynamically adjusts its operational mode between turbo mode and normal mode based on real-time power headroom conditions. The system monitors power consumption and workload characteristics, then adaptively switches operating states to optimize the trade-off between processing speed and power consumption, rather than operating at a fixed state
Solution Approach 2:
The system changes operational parameters (frequency, voltage) based on power headroom availability. When power headroom is sufficient, the PLD increases frequency and voltage to enter turbo mode for faster processing. When power headroom is limited, it reduces these parameters to conserve power, directly linking parameter changes to the power-speed trade-off
2Use of energy by moving object
If a PLD uses reduced power operation mode, then power consumption is minimized, but processing speed decreases
Solution Approach 1:
The system dynamically selects between reduced power mode and turbo mode based on workload characteristics and power headroom conditions. Rather than permanently operating at reduced speed, the PLD adapts its performance level to match actual requirements, achieving energy efficiency without permanently sacrificing speed capability
Solution Approach 2:
The PLD periodically monitors power headroom and workload conditions, switching between operational modes in response to changing conditions. This periodic assessment allows the system to capture power headroom opportunities when available while conserving energy when not needed, creating a rhythm of high-performance bursts separated by lower-power operation
3Productivity
If the PLD enters turbo processing mode to complete operations faster, then productivity is improved, but energy consumption increases
Solution Approach 1:
The PLD applies turbo mode selectively rather than continuously, using excessive power consumption only when and where needed to complete operations faster. By applying full power in partial bursts rather than sustained operation, the system achieves productivity improvements while limiting total energy loss
Solution Approach 2:
The system uses feedback from power headroom monitoring and workload analysis to determine when to activate turbo mode. This feedback mechanism ensures that high-energy consumption is triggered only by appropriate conditions (sufficient power headroom and suitable workload characteristics), preventing wasteful energy consumption
Data Source
AI summary
The present disclosure describes programmable logic that may be operated in a turbo processing mode to cause an ongoing operation to be completed faster than a scheduled completion time. With at least some of the remaining time to the scheduled completion time, power savings may be realized by operating the programmable logic into a deep sleep mode, where configuration memory associated with the programmable logic may be set to a suitable voltage level as to not cause data loss at lower or zero voltage levels but otherwise realize power savings relative to an amount of power consumed during average processing operations.