Tag Circuit With Adjustable Rectifier For Wide Power Range
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional tag circuits have limited power consumption and input power ranges due to fixed power conversion characteristics in their rectifier circuits, making them less versatile for various applications.
Innovation Solution
A tag circuit with a rectifier circuit that can change power conversion characteristics, incorporating multiple stages of rectifier circuits or charge pumps with ON-resistance reducing elements, and a control part that adjusts these characteristics to match varying power requirements, along with an optional matching circuit for impedance adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed rectifier circuit configuration is used, then the circuit structure is simple, but the power consumption range and input power range are limited
Solution Approach 1:
The rectifier circuit is divided into multiple stages, where each stage has different power conversion characteristics. This segmentation allows the system to handle a wider range of input powers by selecting appropriate stages, thereby expanding both the power consumption range and input power range without significantly increasing overall system complexity.
Solution Approach 2:
The rectifier circuit is designed with variable power conversion characteristics that can dynamically adapt to different operating conditions. By making the rectifier circuit dynamic rather than fixed, the system can optimize performance across varying input power levels and load requirements, achieving broader adaptability.
2Loss of energy
If rectifier circuits are designed for each specific use environment, then power conversion efficiency is optimized for that environment, but manufacturing complexity and cost increase
Solution Approach 1:
A single rectifier circuit design incorporates multiple stages with different power conversion characteristics, making it universally applicable across various use environments. This multi-functional design eliminates the need to manufacture separate rectifier circuits for different applications, thereby reducing manufacturing complexity while maintaining optimized power conversion efficiency for each operating condition.
Solution Approach 2:
The rectifier circuit utilizes variable parameters (such as switching between different stages or configurations) to adapt to different use environments. This parameter-based adaptation allows one circuit design to serve multiple purposes, reducing the need for custom-designed circuits for each application and simplifying the manufacturing process.
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
Enables a wider power consumption range and input power range for connected loads, improving energy transmission efficiency and adaptability compared to conventional tag circuits.
Implementation Method 1
rectifier circuits that converts output (AC power) of the antenna into DC power
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A tag circuit which allows a load connectable thereto to have a wider power consumption range and which is usable in a wider input power range is provided. The tag circuit includes: a control part which is configured to respond to a command extracted from a radio wave received by an antenna by controlling a load; and a rectifying part which is configured to generate DC power to be supplied to the control part and DC power to be supplied to the load by converting a radio wave received by the antenna into DC power, the rectifying part being capable of changing power conversion characteristics of converting the radio wave received by the antenna into DC power to be supplied to the load.