Power Adaptor Signal Modulation for Flexible Transformer Identification
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Solution Overview
Problem
Existing power adaptor systems for electronic devices, such as laptop computers, require a rigid manufacturing process due to the need for an additional conducting wire to identify compatible transformers, limiting flexibility and increasing production costs.
Innovation Solution
A power adaptor system that includes a voltage transformer circuit and a signal generator to produce a combined signal, allowing the system side to retrieve a determination signal and select an operating mode based on the periodic signal, eliminating the need for an additional conducting wire and enabling flexible identification of compatible transformers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an additional conducting wire is used to generate an identification signal for transformer identification, then the identification function is achieved, but the manufacturing process becomes rigid and complex
Solution Approach 1:
The patent combines the identification signal transmission with the existing power transmission wires by superimposing the identification signal on the DC voltage line. This merging approach eliminates the need for an additional conducting wire, reducing manufacturing complexity while maintaining reliable transformer identification through the combined power and identification signal transmission.
2Reliability
If an additional conducting wire is added for identification signal transmission, then transformer compatibility is ensured, but production costs increase
Solution Approach 1:
The identification function is merged into the existing two-wire power transmission system by modulating the DC voltage with identification information. This eliminates the need for a third wire, reducing material costs, assembly complexity, and production expenses while maintaining full transformer compatibility through the embedded identification signal.
3Reliability
If a conventional identification system with separate identification wire is used, then transformer type confirmation is achieved, but the system lacks flexibility for different manufacturers and power levels
Solution Approach 1:
The patent creates a universal identification system where the same two power transmission wires serve dual functions: delivering power and carrying identification signals. The identification signal can be modulated to encode different manufacturer IDs, power levels, and transformer types, enabling a single adaptable system to work across multiple manufacturers and specifications without requiring manufacturer-specific wiring variations.
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 simplifies the manufacturing process, reduces production costs, and allows for flexible adaptation to different manufacturers and power levels, ensuring efficient power management and compatibility without additional transmission wires.
Implementation Method 1
a voltage transformer circuit, for transforming an AC voltage to a DC voltage
Data Source
AI summary
A power adaptor system and method is provided. The adaptor system includes a system side and a power adaptor. The power adaptor method includes steps of: transforming an AC voltage to a DC voltage; the power adaptor generating a periodic signal and outputting a combined signal according to the DC voltage and the periodic signal; the system side retrieving a determination signal corresponding to the periodic signal according to the combined signal; and the system side selecting an operating mode according to the determination signal.