Improved circuit structure of USBC interface equipment

By introducing the non-standard detection circuit module and power supply switch SW1 into the USB interface device, the compatibility problem of non-standard USB-C cables and standard USB devices is solved, achieving higher compatibility and convenience of use.

CN119690885AActive Publication Date: 2025-03-25上海贝尔企业通信有限公司
4 Cites 0 Cited by

Patent Information

Application Number
CN202411564659.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-05
Publication Date
2025-03-25
Estimated Expiration
2044-11-05

AI Technical Summary

Technical Problem

The non-standard design of existing USB-C cables results in inability to be compatible with standard USBC devices, causing users to experience compatibility issues when using them.

Method used

An improved USB interface device circuit structure is designed, including a CPU, USBC protocol chip, USBC connector, non-standard detection circuit module and power supply switch SW1. The voltages of CC1 and CC2 are detected through the non-standard detection circuit module, and the non-standard detection control signal is output to control the power supply switch SW1 to ensure that the non-standard USB-C cable is compatible with standard equipment.

Benefits of technology

The compatibility of non-standard USB-C cables and standard USBC devices is achieved, avoiding the compatibility problem of users who need to remember specific USB-C cables and devices, and improving the convenience and compatibility of the product.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention discloses an improved circuit structure of a USBC interface device, the structure comprises a CPU, a USBC protocol chip, a USBC connector, a non-standard detection circuit module and a power supply switch SW1, the USBC protocol chip judges whether a plugging action of a master mode device or a slave mode device is performed at the moment by detecting CC1 and CC2 voltages in the USBC connector, and the USBC protocol chip communicates with the CPU through an I2C signal bus; after the non-standard USBC cable is inserted, the non-standard detection circuit module provides additional logic judgment through detection of CC1 and CC2 voltages in the USBC connector, and outputs a non-standard detection control signal to control opening and closing of the power supply switch SW1. According to the structure, a non-standard USBC cable and a standard USBC cable can be identified by a USBC protocol chip, so that the situation that a customer is required to remember the USBC cables which are consistent in appearance and incompatible in interior and can only be used for specific terminal equipment is avoided.
Need to check novelty before this filing date? Find Prior Art