Pre-Boot Power Scaling for Verified Fast Charging Transitions

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Solution Overview

Problem

Battery-powered devices face challenges in high-power transitions and fast charging due to insufficient initial power from the source device during boot-up, leading to potential stalls and errors, especially when the internal battery is depleted, impacting performance and user experience.

Innovation Solution

A verified low-power boot process is initiated to confirm the trustworthiness of boot code before negotiating for increased power delivery, ensuring stable and secure high-power charging by scaling components into a low-power mode and bypassing battery charging until verification is complete.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If high-power negotiation is performed after boot verification, then power delivery security is ensured, but charging speed is reduced when battery is depleted

Engineering Contradiction:

Improveboot verification securityVSAvoidcharging speed

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The system performs preliminary boot verification at low power mode before initiating high-power charging negotiation. This ensures that security checks are completed when minimal power is available, preventing the scenario where depleted battery prevents verification. The low-power boot process verifies system integrity first, then enables high-power charging only after confirmation of secure boot conditions.

Inventive Principle:

Principle #10Preliminary action

2Use of energy by moving object

If components are scaled to low-power mode during boot, then power consumption is reduced, but processing performance is degraded

Engineering Contradiction:

Improveboot power consumptionVSAvoidboot processing speed

Core Design Contradiction:

Use of energy by moving objectVSProductivity

Solution Approach 1:

The boot process is segmented into distinct phases: a low-power verification phase where critical security checks are performed at reduced power consumption, followed by a high-performance phase after power negotiation succeeds. This segmentation allows the system to prioritize essential verification tasks at low power while reserving full processing capability for subsequent operations when adequate power is confirmed.

Inventive Principle:

Principle #1Segmentation

3Productivity

If high-power charging is initiated immediately, then charging rate is increased, but system stability is compromised during boot

Engineering Contradiction:

Improvecharging rateVSAvoidboot process stability

Core Design Contradiction:

ProductivityVSStability of the object's composition

Solution Approach 1:

The system applies beforehand cushioning by performing complete boot verification and system stability checks at low-power mode before transitioning to high-power charging. This preliminary verification acts as a cushion that prevents instability issues from occurring during high-power operations, ensuring the system is fully prepared and stable before the higher stress of fast charging is applied.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentEP3905005B1Verified high-power transition and fast charging with pre-boot scaling

Publication Date: 2026.03.18 INTEL CORP

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AI summary

Systems, apparatuses and methods may provide for technology that initiates a boot of a computing system containing an embedded controller while the computing system is in a low power mode, conducts a verification that code to perform the boot is uncorrupted, and negotiates an increased power delivery with a source device connected to the computing system if the verification is successful.