Tunable Delay Control for Power Delivery Network Noise Reduction
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Solution Overview
Problem
High-frequency computing devices face increased power supply noise and tighter voltage specifications, leading to transient voltage drops and overshoots due to simultaneous power loading and unloading of components, which introduce noise in the power supply voltage.
Innovation Solution
Implementing delay circuits to stagger the power delivery to components, allowing dynamic tuning of delays to reduce transient voltage drops and overshoots, thereby minimizing power supply noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If components are powered up simultaneously to meet high-frequency operation requirements, then processing speed is improved, but power supply noise increases due to transient voltage drops
Solution Approach 1:
The patent segments the simultaneous power delivery to multiple components into staggered, sequential power delivery. Each component receives power at a different time through individually controlled delay circuits, breaking the simultaneous load transition that causes transient voltage drops and power supply noise.
Solution Approach 2:
The patent applies preliminary action by pre-controlling the power delivery timing to components before they are fully activated. Delay circuits are configured to progressively enable components in a predetermined sequence, preparing the power delivery network for gradual load acceptance rather than sudden simultaneous loading.
2Object-affected harmful factors
If delay circuits are introduced to stagger power delivery, then power supply noise is reduced, but device complexity increases
Solution Approach 1:
The patent implements a universal delay control mechanism that can be applied to multiple components through a shared control architecture. The delay circuits and control logic are designed to manage power delivery across numerous components using a standardized approach, reducing the overall complexity compared to individual independent control circuits for each component.
Solution Approach 2:
The system incorporates automatic tuning capability where the delay parameters are self-adjusted based on monitored power supply conditions. The control circuitry automatically optimizes delay values to minimize transient voltage drops without requiring manual intervention or complex external tuning equipment, allowing the system to self-optimize its performance.
3Device complexity
If delay parameters are fixed during design, then device complexity is reduced, but adaptability to different operating conditions decreases
Solution Approach 1:
The patent transitions from static, fixed delay parameters to dynamic, adjustable delay parameters. The delay circuits are designed with controllable delay elements that can be programmed or tuned during operation, allowing the system to adapt delay values based on actual power supply conditions, component characteristics, and operating requirements.
Solution Approach 2:
The system incorporates feedback mechanisms that monitor power supply voltage and transient conditions, then use this information to automatically adjust delay parameters. The control circuitry receives feedback about power delivery performance and modifies delay values accordingly, enabling the system to adapt to different operating conditions while maintaining optimal noise reduction performance.
Data Source
AI summary
An apparatus system is provided which comprises: a first component to receive a first signal via a first delay circuit; a second component to receive a second signal via a second delay circuit; and one or more circuitries to tune a first delay of the first delay circuit and a second delay of the second delay circuit, based at least in part on monitoring of a voltage level.