阅读说明：本技术 一种具有断电保护功能的数据线 (Data line with power-off protection function ) 是由 何铁军 于 2020-06-03 设计创作，主要内容包括：本发明公开了一种具有断电保护功能的数据线,其包括输入端口、输出端口、CTP电子保护器、钳位电平模块以及电源管理模块,所述钳位电平模块包括第一LED和第二LED,当数据线内部温度和电流正常时,CTP电子保护器内的Nch MOS管处于工作状态,输入端口和输出端口为导通,钳位电平模块控制第一LED长亮,当数据线内部温度和电流不正常时,Nch MOS管处于关闭状态,输入端口和输出端口为不导通,钳位电平模块控制第一LED熄灭并控制第二LED长亮,电源管理模块为钳位电平模块及其内部的第一LED和第二LED供电,本发明能够及时断电并作出灯光提示,对电子产品起到很好的保护作用,提高电子产品的使用寿命。(The invention discloses a data line with power-off protection function, which comprises an input port, an output port, a CTP electronic protector, a clamp level module and a power management module, wherein the clamp level module comprises a first LED and a second LED, when the internal temperature and current of the data line are normal, an Nch MOS tube in the CTP electronic protector is in a working state, the input port and the output port are conducted, the clamp level module controls the first LED to be on for a long time, when the internal temperature and current of the data line are abnormal, the Nch MOS tube is in a closed state, the input port and the output port are not conducted, the clamp level module controls the first LED to be off and controls the second LED to be on for a long time, and the power management module supplies power to the clamp level module and the first LED and the second LED in the clamp level module, the service life of the electronic product is prolonged.)

1. A data line with a power-off protection function comprises an input port (1), an output port (2) electrically and signal-connected with the input port (1), and is characterized by further comprising a CTP electronic protector (3) arranged between the input port (1) and the output port (2) and respectively electrically and signal-connected with the input port (1) and the output port (2), a clamping level module (4) electrically and signal-connected with the CTP electronic protector (3), and a power management module (5) arranged between the input port (1) and the clamping level module (4) and respectively electrically connected with the input port (1) and the clamping level module (4), wherein the clamping level module (4) comprises a first LED (41) and a second LED (42) which are respectively electrically and signal-connected with the power management module (5), the first LED (41) is used for indicating normal operation, the second LED (42) is used for indicating abnormal work.

2. The data line with power-off protection function as claimed in claim 1, wherein the first LED (41) and the second LED (42) are both light emitting diodes.

3. The data line with power-off protection function according to claim 2, wherein the clamping level module (4) comprises a resistor R2, a resistor R3, a resistor R8, a transistor Q2, a resistor R1, a resistor R6, a resistor R7, a transistor Q1 and a resistor R5;

one end of the resistor R2 and one end of the resistor R7 are respectively connected with the power management module (5), the other end of the resistor R2 is connected with the second LED (42), the other end of the resistor R7 is connected with the first LED (41), the other pole of the first LED (41) is connected with the other pole of the second LED (42), one end of the resistor R8 is connected with the CTP electronic protector (3), the G pole of the triode Q2 is respectively connected with one end of the resistor R8 and one end of the resistor R3, the S pole of the triode Q2 is connected with the other end of the resistor R3, the D pole of the triode Q2 is connected with the second LED (42), the G pole of the triode Q1 is respectively connected with one end of the resistor R6 and one end of the resistor R1, the other end of the resistor R6 is connected with the D pole of the triode Q2, the other end of the resistor R1 is connected with the S pole of the triode Q1, the S pole of the triode Q2 is connected with the S pole 1, the S pole of the triode Q1 is connected with one end of the first LED (41) through a series resistor R5, and the D pole of the triode Q1 is connected with the other end of the first LED (41).

4. A data line with power-off protection function according to any one of claims 1-3, characterized in that the input port (1) is a USB2.0 or USB3.0 interface.

5. A data line with power-off protection function according to any one of claims 1 to 3, characterized in that the output port (2) is a USB2.0, USB3.0 or Type-c interface.

6. A data line with power-off protection function according to any one of claims 1-3, characterized in that the first LED (41) is a blue indicator light.

7. A data line with power-off protection function according to any one of claims 1 to 3, characterized in that the second LED (42) is a red indicator light.

Technical Field

The present invention relates to a data line, and more particularly, to a data line with power-off protection.

Background

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a data line with a power-off protection function, which can be powered off in time and give a light prompt to work abnormity when the internal temperature of the data line is too high or the current is too large, so that the electronic product is well protected, and the service life of the electronic product is prolonged.

In order to achieve the above object, the present invention provides a data line with a power-off protection function, including an input port, an output port electrically and signal-connected to the input port, a CTP electronic protector disposed between the input port and the output port and electrically and signal-connected to the input port and the output port, a clamp level module electrically and signal-connected to the CTP electronic protector, and a power management module disposed between the input port and the clamp level module and electrically connected to the input port and the clamp level module, respectively, wherein the clamp level module includes a first LED and a second LED electrically and signal-connected to the power management module, respectively, the first LED is used for indicating normal operation, and the second LED is used for indicating abnormal operation.

Preferably, the first LED and the second LED are both light emitting diodes.

Preferably, the clamping level module includes a resistor R2, a resistor R3, a resistor R8, a transistor Q2, a resistor R1, a resistor R6, a resistor R7, a transistor Q1, and a resistor R5; one end of the resistor R2 and one end of the resistor R7 are connected to the power management module, the other end of the resistor R2 is connected to the second LED, the other end of the resistor R7 is connected to the first LED, the other pole of the first LED is connected to the other pole of the second LED, one end of the resistor R8 is connected to the CTP electronic protector, the G pole of the transistor Q2 is connected to one end of the resistor R8 and one end of the resistor R3, the S pole of the transistor Q2 is connected to the other end of the resistor R3, the D pole of the transistor Q2 is connected to the second LED, the G pole of the transistor Q1 is connected to one end of the resistor R6 and the resistor R1, the other end of the resistor R6 is connected to the D pole of the transistor Q42, the other end of the resistor R1 is connected to the S pole of the transistor Q1, the S pole of the transistor Q2 is connected to the S pole of the transistor Q1, and the S pole of the transistor Q1 is connected to one end of the first LED 5, and the D pole of the triode Q1 is connected with the other end of the first LED.

Preferably, the input port is a USB2.0 or USB3.0 interface.

Preferably, the output port is a USB2.0, USB3.0 or Type-c interface.

Preferably, the first LED is a blue indicator light.

Preferably, the second LED is a red indicator light.

Compared with the prior art, the invention has the beneficial effects that:

the invention is provided with an input port and an output port, a CTP electronic protector is arranged between the input port and the output port, voltage changes of S1 and S2 at two ends of an MOSFET are monitored through a comparator Vin or Vout inside the CTP electronic protector, so that whether output has overcurrent, charging and discharging temperature or other abnormal conditions is judged, an Nch MOS tube inside the CTP electronic protector is closed to protect a mobile phone and a digital product, in addition, a clamping level module is used for detecting whether the Nch MOS tube inside the CTP electronic protector is closed and respectively controlling working states of a first LED and a second LED, when the temperature and current inside a data line are normal, the Nch MOS tube is in a working state, the input port and the output port are in a conducting state, the clamping level module controls the first LED to be long and bright to indicate a user that the data line works normally, and when the temperature and current inside the data line are abnormal, the Nch MOS tube is, at the moment, the input port and the output port are in a non-conducting state, the clamping level module controls the first LED to be turned off and controls the second LED to be turned on for indicating that the data line works abnormally, wherein the power management module is electrically connected with the input port, so that external current passes through the input port and the power management module in sequence, and the power management module supplies power to the clamping level module and the first LED and the second LED inside the clamping level module.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a circuit module connection of a data line with power-off protection function according to the present invention;

FIG. 2 is a circuit diagram of a data line with power-off protection provided by the present invention;

fig. 3 is a circuit diagram of a clamp level module 4 in a data line with power-off protection function according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 2, the present invention provides a data line with power-off protection function, which includes an input port 1, an output port 2 electrically and signal-connected to the input port 1, a CTP electronic protector 3 disposed between the input port 1 and the output port 2 and electrically and signal-connected to the input port 1 and the output port 2, respectively, a clamp level module 4 electrically and signal-connected to the CTP electronic protector 3, and a power management module 5 disposed between the input port 1 and the clamp level module 4 and electrically connected to the input port 1 and the clamp level module 4, respectively, wherein the clamp level module 4 includes a first LED41 and a second LED42 electrically and signal-connected to the power management module 5, respectively.

Specifically, voltage changes at two ends S1 and S2 of the MOSFET are monitored by a comparator Vin or Vout inside the CTP electronic protector 3, so as to determine whether output has overcurrent, charging and discharging temperature or other abnormal conditions, and further close an NchMOS transistor inside the CTP electronic protector to protect a mobile phone and a digital product, in addition, the clamping level module 4 is used for detecting whether the NchMOS transistor inside the CTP electronic protector 3 is closed and respectively controlling working states of the first LED41 and the second LED42, when the internal temperature and current of the data line are normal, the Nch MOS transistor is in a working state, the input port 1 and the output port 2 are in a conducting state at the moment, the clamping level module 4 controls the first LED41 to be long and bright so that the data line of a user works normally, when the internal temperature and current of the data line are abnormal, the Nch MOS transistor is in a closed state, the input port 1 and the output port 2 are in a non-conducting state at the moment, the clamping level module 4 controls the first LED41 to extinguish and control the second LED42 to be, the abnormal work of the data line is indicated for a user, wherein the power management module 5 is electrically connected with the input port 1, so that external current passes through the input port 1 and the power management module 5 in sequence, the power management module 5 supplies power to the clamping level module 4 and the first LED41 and the second LED42 in the clamping level module, the first LED41 is a blue indicator, the second LED42 is a red indicator, when the first LED41 is lighted to emit blue light, the data line works normally, when the second LED42 is lighted to emit red light, the data line works abnormally, at the moment, the connection between the output port 2 and an electronic product needs to be pulled out, when the internal temperature of the data line is recovered to be normal or an external power supply is replaced to eliminate the condition that the current is too large, the output port 2 is connected to the electronic product again, therefore, the power can be cut off in time, and light prompt for abnormal work is made, so that the electronic product is well protected, the service life of the electronic product is prolonged. Wherein the input port 1 is a USB2.0 or USB3.0 interface, the output port 2 is a USB2.0, USB3.0 or Type-c interface, and preferably, the input port 1 is a USB2.0 interface and the output port 2 is a Type-c interface in this embodiment.

As shown in fig. 3, in the present embodiment, the first LED41 and the second LED42 are both light emitting diodes. The clamping level module 4 includes a resistor R2, a resistor R3, a resistor R8, a transistor Q2, a resistor R1, a resistor R6, a resistor R7, a transistor Q1, and a resistor R5.

Specifically, one end of a resistor R2 and one end of a resistor R7 are respectively connected to the power management module 5, the other end of the resistor R2 is connected to the second LED42, the other end of the resistor R7 is connected to the first LED41, the other end of the first LED41 is connected to the other end of the second LED42, one end of the resistor R8 is connected to the CTP electronic protector 3, the G pole of the transistor Q2 is respectively connected to one end of a resistor R8 and one end of a resistor R3, the S pole of the transistor Q2 is connected to the other end of a resistor R3, the D pole of the transistor Q2 is connected to the second LED42, the G pole of the transistor Q42 is respectively connected to one end of the resistor R42 and one end of the resistor R42, the other end of the resistor R42 is connected to the D pole of the transistor Q42, the other end of the resistor R42 is connected to the S pole of the transistor Q42 through the first LED42, the D pole of the triode Q1 is connected with the other end of the first LED 41.

By adopting the connecting circuit, according to the working principle of the triode Q2 and the triode Q1, the D poles of the triode Q2 and the triode Q1 are ensured to have enough working voltage, firstly, the resistor R8, the resistor R3 and the G pole of the triode Q2 form a voltage-division sampling bias value, the resistor R8 is connected to the VOUT end of the CTP electronic protector 3, so that the triode Q2 is conducted, the D pole voltage of the triode Q2 is changed from high to low, the second LED42 does not work, meanwhile, the resistor R6, the resistor R1 and the G pole of the triode Q1 form a two-stage voltage-division sampling voltage-free state, the triode Q1 does not work due to the conduction of the triode Q2, and the first LED41 is in a normally-on state, so that the light indication of the normal mode of the first LED41 is. On the contrary, when the voltage at the VOUT terminal of the CTP electronic protector 3 is turned off due to output short circuit or overcurrent, the resistor R8 turns on the resistor Q2 to turn off the transistor Q2, the voltage of the D electrode of the transistor Q2 changes from low to high, the second LED42 returns to ground through the resistor R5, the second LED42 is turned on, and simultaneously, the resistor R6, the resistor R1 and the G electrode of the transistor Q1 form a two-stage voltage division type sampling mode, and the voltage is converted from no voltage to a voltage, so that the transistor Q1 is turned on, the voltage of the D electrode of the transistor Q1 is not converted, and the first LED41 is turned off. Thereby enabling a light indication of an abnormal pattern of the second LED 42.

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.