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A usb Type-C interface female intelligent detection and protection circuit

A technology of intelligent detection and detection circuit, applied in the direction of emergency protection circuit device, measuring electricity, circuit device, etc., can solve problems such as impact, and achieve the effect of preventing damage and reducing impact

Active Publication Date: 2019-07-16
达凯(上海)电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing passive protection scheme will bring a large parasitic capacitance on the pin, which will affect the maximum communication speed of communication pins such as TX / TX, DP / DM

Method used

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  • A usb Type-C interface female intelligent detection and protection circuit
  • A usb Type-C interface female intelligent detection and protection circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A USB Type-C interface female intelligent detection and protection circuit, taking CC, DP / DM, SBU1 / SBU2 as examples, figure 1 CC_CON / DP_CON / DM_CON / SBU1_CON / SBU2_CON represents the pins on the USB Type-C female head, and CC_INT / DP_INT / DM_INT / SBU1_INT / SBU2_INT represents the pins on the internal or the other side of the female head. The female pins of this interface include VBUS pin, CC pin CC_CON, DP pin DP_CON, DM pin DM_CON, SBU1 pin SBU1_CON, SBU2 pin SBU2_CON, each female pin has a corresponding internal or another The pins of the side female header are CC_INT, DP_INT, DM_INT, SBU1_INT, SBU2_INT, the circuit includes female header pins, CC control chip Type-C Controller, protection detection module Protection Detection, CC control chip Type-C Controller is used for USB Type-C logic detection and control, the protection detection module Protection Detection includes a short circuit detection module, a test voltage control module and a CC control chip enabling module, ...

Embodiment 2

[0058] A USB Type-C interface female intelligent detection and protection circuit, taking CC, DP / DM, SBU1 / SBU2 as examples, figure 1 CC_CON / DP_CON / DM_CON / SBU1_CON / SBU2_CON represents the pins on the USB Type-C female head, and CC_INT / DP_INT / DM_INT / SBU1_INT / SBU2_INT represents the pins on the internal or the other side of the female head. The female pins of this interface include VBUS pin, CC pin CC_CON, DP pin DP_CON, DM pin DM_CON, SBU1 pin SBU1_CON, SBU2 pin SBU2_CON, each female pin has a corresponding internal or another The pins of the side female header are CC_INT, DP_INT, DM_INT, SBU1_INT, SBU2_INT, the circuit includes female header pins, CC control chip Type-C Controller, protection detection module Protection Detection, CC control chip Type-C Controller is used for USB Type-C logic detection and control, the protection detection module Protection Detection includes a short circuit detection module, a test voltage control module and a CC control chip enabling module, ...

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Abstract

The invention relates to a USB Type-C interface female head intelligent detection and protection circuit. The circuit comprises a female head pin, a CC control chip and a protection and detection module. The CC control chip is used for USB Type-C logic detection and control. The protection and detection module comprises a short circuit detection module, a test voltage control module and a CC control chip enabling module. The short circuit detection module is used for detecting voltage or current of the female head pin. The short circuit detection module can be turned off. The test voltage control module is used for supplying voltage to a VBUS. The CC control chip enabling module is used for enabling the CC control chip. According to the circuit, intelligent detection and protection of a USB Type-C interface female head can be realized, damage caused by short circuit can be prevented to the greatest extent and influence on port communication can be reduced to the greatest extent.

Description

technical field [0001] The invention relates to an intelligent detection and protection circuit for a female head of a USB Type-C interface. Background technique [0002] Type-C is a connection interface of the USB interface. It can be inserted regardless of the front and back sides. The size is about 8.3mm×2.5mm. Like other interfaces, it supports USB standard charging, data transmission, display output and other functions. Type-C was formulated by the USBImplementers Forum and became popular after receiving support from manufacturers such as Apple, Google, Intel, and Microsoft in 2014. On August 1, 2015, Techcore launched the world's first Type-C interface mobile solid state drive. On October 10, 2015, TerraMaster launched the world's first USB 3.1 Type-C interface disk array. [0003] The SB Type-C interface has the characteristics of miniaturization, densely arranged pins, and the pin voltage range varies greatly. The CC pin, TX / RX, DP / DM pin and SBU pin support 5V wor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H3/04G01R31/02
CPCG01R31/50H02H3/04
Inventor 钱海蕾
Owner 达凯(上海)电子科技有限公司