Connecting line with load switch

Abstract

A connecting line with a load switch comprises a USB-A connector, a wire rod, a type-c interface and a load switch loop, one end of the USB-A connector is connected with the wire rod, the other end of the wire rod is connected with the type-c interface, and the load switch loop is arranged at the position of the type-c interface; according to the Type-C interface circuit, the load switch circuit is installed in the Type-C interface circuit to ensure stable transmission of the data line, the load switch circuit and the Type-C interface circuit are connected with the power supply and the equipment in series, and when the current of the connected equipment exceeds the limited current of the load circuit or the load circuit is short-circuited, the Type-C interface circuit can be switched off. When the current fault occurs, the load circuit switching circuit is disconnected, protection is performed, hiccup output is performed, when the current fault disappears, the circuit is automatically recovered from overcurrent protection, and the output voltage and current are recovered to normal work.

Description

Technical Field

[0001] The utility model belongs to the technical field of winding wires, and in particular relates to a connecting wire with a load switch. Background Art

[0002] At present, there are more and more electronic products and data cables are also varied. Many data cables cannot cut off the power in time when dealing with excessive current, resulting in burning during charging and discharging. In severe cases, it may even cause fire hazards.

[0003] Based on this, in order to improve the safety performance of the data line and avoid short circuits and fires, this design proposes a connecting line with a load switch. Utility Model Content

[0004] The utility model aims to provide a connecting line with a load switch.

[0005] A connecting line with a load switch comprises: a USB-A connector, a wire, a type-C interface, and a load switch loop, wherein one end of the USB-A connector is connected to the wire, and the other end of the wire is connected to the type-C interface, wherein the type-C interface is provided with a load switch loop.

[0006] Preferably, the load switch loop circuit diagram includes: a USB-A circuit, a load switch circuit, and a type-c interface circuit. The USB-A circuit has a total of 4 pins, the load switch circuit has a total of 5 pins, and the type-c interface circuit has a total of 24 pins.

[0007] Preferably, pin 4 of the USB-A circuit is connected to the negative pole of the DC power supply and to ground, pin 3 of the USB-A circuit is connected to the USB signal D+, pin 2 of the USB-A circuit is connected to the USB signal D-, pin 1 of the USB-A circuit is connected to pin 1 of the surge diode, pin 2 of the surge diode is grounded, pin 2 of the surge diode is connected to pin 2 of capacitor C1, pin 1 of the surge diode is connected to pin 1 of capacitor C1, and pin 1 of capacitor C1 is connected to a positive 5 volt input voltage.

[0008] Preferably, pin 1 of the USB-A circuit is connected to pin 1 of resistor R3, pin 2 of the resistor R3 is connected to pin 5 of the load switch circuit, pin 2 of the resistor R3 is connected to pin 4 of the load switch circuit, pin 2 of the load switch circuit is grounded, pin 3 of the load switch circuit is connected to pin 2 of resistor R1, pin 1 of the resistor R1 is connected to pin 1 of resistor R2, pin 2 of the resistor R2 is grounded, pin 1 of the load switch circuit is connected to pin 1 of capacitor C2, pin 2 of the capacitor C2 is grounded, pin 1 of the load switch circuit is connected to a positive 5 volt output voltage, and pin 1 of the load switch is connected to pins A4, A9, B9, and B4 of the type-c interface circuit.

[0009] Preferably, the A2, A3, A8, A10, A11, B11, B10, B8, B7, B6, B5, B3, and B2 pins of the type-c interface circuit are to be connected, the A1, A12, B1, and B12 pins of the type-c interface circuit are connected to each other and grounded, the G1, G2, G3, and G4 of the type-c interface circuit are iron shells and grounded, the A5 pin of the type-c interface circuit is connected to the pin No. 2 of the resistor RP, the pin No. 1 of the resistor RP is connected to the positive 5V input voltage, the A6 pin of the type-c interface circuit is connected to the USB signal D+, and the A7 pin of the type-c interface circuit is connected to the USB signal D-.

[0010] The beneficial effects of the above scheme are:

[0011] 1. The utility model ensures stable transmission of data lines by installing a load switch circuit in the Type-C interface circuit. The load switch circuit and the Type-C interface circuit are connected in series to the power supply and the device. When the current of the connected device exceeds the current limit of the load circuit or a short circuit occurs in the load circuit, the load circuit switch circuit will disconnect the output. When the current fault disappears, the circuit will automatically recover from the overcurrent protection, so that the output voltage and current return to normal operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a block diagram of the utility model;

[0013] Figure 2 This is the schematic diagram of the load switch circuit of the utility model; DETAILED DESCRIPTION

[0014] The present invention is further explained in detail below in conjunction with the accompanying drawings of the specification, but the protection scope of the present invention is not limited thereto.

[0015] according to Figure 1 , Figure 2 As shown, a connection line with a load switch includes: a USB-A connector, a wire, a type-c interface, and a load switch circuit, wherein one end of the USB-A connector is connected to the wire, and the other end of the wire is connected to the type-c interface, wherein a load switch circuit is provided at the type-c interface.

[0016] Specifically, the load switch loop circuit diagram includes: a USB-A circuit, a load switch circuit, and a type-c interface circuit. The USB-A circuit has a total of 4 pins, the load switch circuit has a total of 5 pins, and the type-c interface circuit has a total of 24 pins.

[0017] Specifically, pin 4 of the USB-A circuit is connected to the negative pole of the DC power supply and to ground, pin 3 of the USB-A circuit is connected to the USB signal D+, pin 2 of the USB-A circuit is connected to the USB signal D-, pin 1 of the USB-A circuit is connected to pin 1 of the surge diode, pin 2 of the surge diode is grounded, pin 2 of the surge diode is connected to pin 2 of capacitor C1, pin 1 of the surge diode is connected to pin 1 of capacitor C1, and pin 1 of capacitor C1 is connected to a positive 5 volt input voltage.

[0018] Specifically, pin 1 of the USB-A circuit is connected to pin 1 of resistor R3, pin 2 of the resistor R3 is connected to pin 5 of the load switch circuit, pin 2 of the resistor R3 is connected to pin 4 of the load switch circuit, pin 2 of the load switch circuit is grounded, pin 3 of the load switch circuit is connected to pin 2 of resistor R1, pin 1 of the resistor R1 is connected to pin 1 of resistor R2, pin 2 of the resistor R2 is grounded, pin 1 of the load switch circuit is connected to pin 1 of capacitor C2, pin 2 of the capacitor C2 is grounded, pin 1 of the load switch circuit is connected to a positive 5 volt output voltage, and pin 1 of the load switch is connected to pins A4, A9, B9, and B4 of the type-c interface circuit.

[0019] Specifically, the A2, A3, A8, A10, A11, B11, B10, B8, B7, B6, B5, B3, and B2 pins of the type-c interface circuit are to be connected, the A1, A12, B1, and B12 pins of the type-c interface circuit are connected to each other and grounded, the G1, G2, G3, and G4 of the type-c interface circuit are iron shells and grounded, the A5 pin of the type-c interface circuit is connected to the pin No. 2 of the resistor RP, the pin No. 1 of the resistor RP is connected to the positive 5 volt input voltage, the A6 pin of the type-c interface circuit is connected to the USB signal D+, and the A7 pin of the type-c interface circuit is connected to the USB signal D-.

[0020] Working principle:

[0021] A connection line with a load switch. When working, the current in the power supply flows into the load switch circuit through the USB-A circuit, then flows from the load switch circuit to the type-c interface circuit, and finally flows from the type-c interface into the device;

[0022] When current flows through the load switch circuit, when the current is too large or the line is short-circuited, the load switch circuit will shut down the circuit output to prevent excessive current from flowing into the device and protect the device installation. At the same time, since the circuits are connected in series, the data line can be prevented from overheating and burning, protecting personal safety.

[0023] When the current returns to normal, the load switch will open the circuit, allowing the current to flow normally and resuming normal use and function.

Claims

1. A connecting line with a load switch, comprising: USB-A connector, wire, type-c interface, load switch circuit, one end of the USB-A connector is connected to the wire, and the other end of the wire is connected to the type-c interface, characterized in that a load switch circuit is provided at the type-c interface.

2. A connecting line with a load switch as claimed in claim 1, characterized in that: The circuit diagram of the load switch loop includes: a USB-A circuit, a load switch circuit, and a type-c interface circuit. The USB-A circuit has a total of 4 pins, the load switch circuit has a total of 5 pins, and the type-c interface circuit has a total of 24 pins.

3. A connecting line with a load switch as claimed in claim 2, characterized in that: Pin 4 of the USB-A circuit is connected to the negative pole of the DC power supply and to ground, pin 3 of the USB-A circuit is connected to the USB signal D+, pin 2 of the USB-A circuit is connected to the USB signal D-, pin 1 of the USB-A circuit is connected to pin 1 of the surge diode, pin 2 of the surge diode is grounded, pin 2 of the surge diode is connected to pin 2 of capacitor C1, pin 1 of the surge diode is connected to pin 1 of capacitor C1, and pin 1 of capacitor C1 is connected to a positive 5V input voltage.

4. A connecting line with a load switch as claimed in claim 3, characterized in that: Pin 1 of the USB-A circuit is connected to pin 1 of resistor R3, pin 2 of the resistor R3 is connected to pin 5 of the load switch circuit, pin 2 of the resistor R3 is connected to pin 4 of the load switch circuit, pin 2 of the load switch circuit is grounded, pin 3 of the load switch circuit is connected to pin 2 of resistor R1, pin 1 of the resistor R1 is connected to pin 1 of resistor R2, pin 2 of the resistor R2 is grounded, pin 1 of the load switch circuit is connected to pin 1 of capacitor C2, pin 2 of the capacitor C2 is grounded, pin 1 of the load switch circuit is connected to a positive 5V output voltage, and pin 1 of the load switch is connected to pins A4, A9, B9, and B4 of the type-c interface circuit.

5. A connecting line with a load switch as claimed in claim 1, characterized in that: The A2, A3, A8, A10, A11, B11, B10, B8, B7, B6, B5, B3, and B2 pins of the type-c interface circuit are to be connected, the A1, A12, B1, and B12 pins of the type-c interface circuit are connected to each other and grounded, the G1, G2, G3, and G4 of the type-c interface circuit are iron shells and grounded, the A5 pin of the type-c interface circuit is connected to the No. 2 pin of the resistor RP, the No. 1 pin of the resistor RP is connected to the positive 5V input voltage, the A6 pin of the type-c interface circuit is connected to the USB signal D+, and the A7 pin of the type-c interface circuit is connected to the USB signal D-.

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