Charging Guidance Signal Circuit With Adjustable Voltage Division
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Solution Overview
Problem
The lack of international standards for charging guidance signals in new energy vehicles leads to compatibility issues across different countries and regions, making it difficult for new energy vehicles to charge normally in varying environments.
Innovation Solution
A charging guidance signal acquisition circuit that includes a signal amplification and filtering circuit, and a voltage divider circuit with adjustable resistors, which adjusts the charging guidance signal to meet the electrical requirements of the vehicle-mounted charging controller, ensuring adaptability to different charging standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If charging guidance signal standards vary among different countries/regions, then local charging operations can be optimized, but charging adaptability of new energy vehicles deteriorates
Solution Approach 1:
The patent changes the voltage parameter of the charging guidance signal through a voltage division circuit. The circuit divides the received charging guidance signal voltage to a target value that meets the electrical requirements of the vehicle-mounted charging controller, enabling the system to adapt to different voltage standards across countries/regions while maintaining reliable charging operations
Solution Approach 2:
The patent creates a universal charging guidance signal acquisition circuit that can handle multiple voltage standards. By incorporating adjustable voltage division and signal amplification capabilities, the circuit serves multiple functions: receiving signals, amplifying weak signals, filtering noise, and adjusting voltage levels to match different regional standards, thus achieving multi-functionality and broad adaptability
2Measurement precision
If signal amplification and filtering circuit is added to process charging guidance signal, then signal processing capability is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple signal processing functions into a single integrated circuit. The voltage division circuit, signal amplification circuit, and filtering circuit are combined to work together as a unified charging guidance signal acquisition circuit, reducing overall system complexity while maintaining precise signal processing capabilities
Solution Approach 2:
The integrated circuit performs multiple functions simultaneously: voltage division to adjust signal levels, amplification to enhance weak signals, and filtering to remove noise. This multi-functional design achieves precise signal processing without proportionally increasing device complexity, as all functions are embedded within a single circuit architecture
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
The solution enhances the charging adaptability of new energy vehicles by accurately adjusting the charging guidance signal to compatible voltage levels, overcoming compatibility issues and ensuring normal charging operations across diverse regions.
Implementation Method 1
a signal amplification and filtering circuit configured to receive a charging guidance signal, and amplify and filter the received charging guidance signal
Implementation Method 2
a voltage divider circuit, an input end of which is connected to an output end of the signal amplification and filtering circuit, and configured to adjust the charging guidance signal processed by the signal amplification and filtering circuit to a target value
Data Source
AI summary
The present disclosure relates to the technical field of charging guidance signal acquisition for new energy vehicles, and provides a charging guidance signal acquisition circuit, a new energy vehicle-mounted charging socket and a charging pile. The charging guidance signal acquisition circuit includes: a signal amplification and filtering circuit configured to receive a charging guidance signal, and amplify and filter the received charging guidance signal; and a voltage divider circuit, an input end of which is connected to an output end of the signal amplification and filtering circuit, and configured to adjust the charging guidance signal processed by the signal amplification and filtering circuit to a target value, which is a voltage that meets electrical requirements of a charging guidance signal input pin of a vehicle-mounted charging controller; the voltage divider circuit includes at least two adjustable resistors connected in series, and resistances values of the adjustable resistors are adjustable according to the electrical requirements of the charging guidance signal input pin. The embodiments of the present disclosure can overcome or alleviate the problem that it is difficult to charge the new energy vehicle normally due to the lack of uniformity charging guidance signal standards.