Docking Station Bypass Pathway for High-Power Delivery

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Solution Overview

Problem

Conventional docking stations often struggle to provide sufficient power to Information Handling Systems (IHSs) beyond the limitations of established power delivery protocols, such as USB, which restricts the power output and efficiency, especially for devices requiring higher currents or peak power.

Innovation Solution

The implementation of a docking station with dual bypass power pathways, utilizing a main controller to select between a protocol-compliant power circuit and a bypass auxiliary power pathway, which includes a voltage regulator and load switching transistors to directly deliver DC input power from an AC adapter, allowing for increased power output and efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a protocol-compliant power circuit is used to deliver power according to USB power delivery protocol, then compatibility with standard devices is improved, but the maximum power output is limited to protocol-defined levels

Engineering Contradiction:

Improvedevice compatibilityVSAvoidmaximum power output

Core Design Contradiction:

Adaptability or versatilityVSPower

Solution Approach 1:

The power delivery system is segmented into two independent pathways: a protocol-compliant pathway for standard compatibility and a bypass auxiliary pathway for high-power delivery. This segmentation allows each pathway to be optimized independently, resolving the contradiction between compatibility and maximum power output capability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A controller acts as an intermediary between the two power pathways and the connected device. The controller determines which pathway to activate based on device requirements, enabling seamless switching between standard and high-power modes without compromising compatibility or power delivery capability.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Power

If power delivery is increased beyond protocol limits, then peak current capability is improved, but heat generation increases

Engineering Contradiction:

Improvepeak currentVSAvoidheat generation

Core Design Contradiction:

PowerVSTemperature

Solution Approach 1:

The bypass auxiliary power pathway extracts the high-power delivery function from the protocol-compliant circuitry. By separating this function into a dedicated bypass pathway with specialized components, the system can deliver peak currents without the thermal constraints of standard protocol circuits.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The bypass auxiliary pathway changes the operational parameters by operating outside the protocol-defined voltage and current limits. This allows the system to deliver higher peak currents with different thermal management characteristics, reducing heat generation relative to the power delivered.

Inventive Principle:

Principle #35Parameter changes

3Device complexity

If a single power pathway is used, then device complexity is reduced, but the range of supported power requirements is limited

Engineering Contradiction:

Improvepower circuit configurationVSAvoidsupported power range

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The docking station is designed with multi-functionality by incorporating both a protocol-compliant power circuit and a bypass auxiliary power pathway within a single device. This universal design allows the system to adapt to various power requirements, from standard USB-powered devices to high-power laptops, without requiring separate docking stations for different power needs.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 solution enables the docking station to provide IHSs with higher power outputs and peak currents than traditional protocols allow, improving efficiency and reducing heat generation, thus supporting a wider range of devices and applications while minimizing cooling requirements.

Implementation Method 1

The bypass auxiliary power pathway may include a voltage regulator

Methodology Applied

Scientific EffectVoltage regulation:

Implementation Method 2

The bypass auxiliary power pathway may include load switching transistors

Methodology Applied

Scientific EffectElectrical conduction and switching: Conduction (electrical)

Data Source

PatentUS11507140B2Bypass pathway for providing auxiliary power from a docking station

Publication Date: 2022.11.22 DELL PROD LP

AI summary

A docking station according to embodiments provides power to an Information Handling System (IHS) coupled to the docking station. The docking station includes a first power circuit supporting a first power output according to a power delivery protocol limited to a first power level. The docking station also includes a second power circuit supporting a second power output for providing the input power of the docking station to the IHS. A controller of the docking station determines whether the IHS requires power using the power delivery protocol and selects the operation of the first or second power circuit. The docking station may support dual of such selectable power pathways using a docking cable joined from two individual cables, where each cable provides a separate power and/or data coupling. The docking station thus supports powering devices according to a power delivery protocol or using the input power to the docking station.