Multi-Port Processing Circuit Power Supply Architecture

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Solution Overview

Problem

Electronic devices with multiple power supply ports face increased operating temperatures due to extra power conversion losses in two-stage power supply architectures, leading to higher heat generation.

Innovation Solution

A processing circuit with multiple power supply ports, featuring a first-level power supply, middle transmission modules, and a charging protocol control module, where the second-level power supply operates in switching or pass-through mode, allowing for adjustable or fixed output voltage to match device requirements, reducing unnecessary power transmission and heat generation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a two-stage power supply architecture is used to provide independent power supply to multiple ports, then each port can receive appropriate voltage, but extra power conversion loss occurs causing the device to heat up

Engineering Contradiction:

Improveindependent power supply capabilityVSAvoidpower conversion loss

Core Design Contradiction:

Adaptability or versatilityVSLoss of energy

Solution Approach 1:

The patent implements dynamic operation modes for the second-level power supply: switching power mode when multiple ports require independent voltage conversion, and pass-through mode when only one port is active. This dynamic adaptation reduces unnecessary power conversion stages and minimizes energy loss while maintaining adaptability for different power supply scenarios

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the operational parameters of the second-level power supply by switching between two distinct modes: switching power mode with voltage conversion and pass-through mode with direct transmission. This parameter change allows the system to optimize power conversion efficiency based on actual power supply requirements, reducing energy loss

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If a two-stage power supply architecture is used to convert AC voltage to multiple DC voltages, then multiple voltage requirements are met, but the device generates more heat resulting in higher operating temperature

Engineering Contradiction:

Improvemultiple voltage outputVSAvoidoperating temperature

Core Design Contradiction:

Adaptability or versatilityVSTemperature

Solution Approach 1:

The patent dynamically adjusts the operational state of the second-level power supply based on the number of active ports. When only one port is in use, the system switches to pass-through mode, eliminating the need for additional voltage conversion and thereby reducing heat generation and operating temperature while still meeting multiple voltage requirements when needed

Inventive Principle:

Principle #15Dynamics

3Adaptability or versatility

If switching power mode is used for the second-level power supply, then output voltage can be adjusted to match device requirements, but power conversion loss increases

Engineering Contradiction:

Improveoutput voltage adjustabilityVSAvoidpower conversion loss

Core Design Contradiction:

Adaptability or versatilityVSLoss of energy

Solution Approach 1:

Inventive Principle:

Principle #35Parameter changes

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 effectively reduces power conversion losses and heat by immediately switching to pass-through mode when unnecessary, ensuring precise power supply and minimizing energy wastage, thereby lowering operating temperatures.

Implementation Method 1

The first level uses an AC-to-DC switching power supply to convert the AC voltage into a transitional DC voltage

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

The second level uses a DC-to-DC switching power supply to convert the transitional DC voltage into a DC voltage required by the port

Methodology Applied

Scientific EffectSwitching power conversion:

Data Source

PatentUS11381091B2Processing circuit with multiple power supply ports and electronic device

Publication Date: 2022.07.05 SHENZHEN WING SEMICON CO LTD

AI summary

The invention provides a processing circuit with multiple power supply ports and an electronic device. The processing circuit includes: N power supply ports; a first-level power supply; N middle transmission modules, connected between the first-level power supply and the corresponding power supply port, wherein at least one of which is used as a second-level power supply; and a charging protocol control module. The charging protocol control module is respectively connected to the first-level power supply, the N power supply ports, and the N middle transmission modules. The second-level power supply operates in a switching power mode or a pass through mode. In the pass through mode, the output voltage of the second-level power supply matches the input voltage received by the first-level power supply, and the output voltage of the second-level power supply is not adjustable.