Adaptive Charging Control for Single-Wire Power Delivery
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In single-wire interface systems, the power provided to slave devices is often insufficient to support various operations due to the increasing trend of using lower voltage supplies, leading to voltage drops that hinder efficient power delivery and operation.
Innovation Solution
Implementing an adaptive power control mechanism in slave devices that actively manages the power drawn from the single-wire connection by selectively adapting the charging path and resistance based on the operation's power demand, eliminating the need for additional power sources and reducing voltage drops.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If lower voltage supplies are used to reduce power consumption, then energy efficiency is improved, but voltage drops increase leading to insufficient power delivery
Solution Approach 1:
The patent implements dynamic power mode selection between direct power mode and indirect power mode based on operational requirements. The slave device can adaptively switch between these modes to optimize power delivery, ensuring sufficient voltage for power-intensive operations while maintaining energy efficiency for normal operations. This dynamic adaptation resolves the contradiction by allowing the system to use lower voltage supplies during normal operation but switch to direct power mode when higher power delivery is needed.
Solution Approach 2:
The patent changes the power delivery parameters by introducing an adaptive power control mechanism that adjusts the charging path resistance dynamically. By modifying the resistance value based on operational needs, the system can optimize power delivery under different voltage conditions, resolving the issue of voltage drops while maintaining energy efficiency.
2Power
If additional power sources are added to increase power delivery, then power availability is improved, but device complexity increases
Solution Approach 1:
The patent makes the single-wire connection multi-functional by enabling it to operate in both direct power mode and indirect power mode. This universal approach allows the same hardware infrastructure to provide different power delivery mechanisms, eliminating the need for additional dedicated power sources while maintaining power availability. The single-wire interface thus serves multiple functions: data communication, indirect power delivery, and direct power delivery when needed.
Solution Approach 2:
The slave device performs self-service by autonomously selecting the appropriate power mode based on its operational requirements. The adaptive power control mechanism allows the device to automatically switch between direct and indirect power modes without external intervention, managing its own power needs while using the existing single-wire infrastructure, thereby avoiding additional complexity.
3Power
If adaptive power control is implemented to optimize power delivery, then power efficiency is improved, but control mechanism complexity increases
Solution Approach 1:
The patent merges the power control functionality with the existing single-wire communication interface. The adaptive power control is integrated into the same hardware infrastructure that handles data communication, combining multiple functions into a unified system. This integration reduces the need for separate control mechanisms and minimizes additional complexity while achieving improved power efficiency.
Data Source
Figure 1
Figure 2
Figure 3A
AI summary
According to various aspects, a device (200) is provided, the device (200) being configured to receive a signal (202), the signal (202) being configured to provide power and data to the device (200); the device (200) including: a charge storage element (222) configured to be charged by the power provided by the received signal (202); and a charging control circuit (228, 300a, 300b, 300c, 300d) configured to control a charging of the charge storage element (222) by the power provided by the received signal (202) based on the data provided by the received signal (202).