Type-C adapter

Abstract

The utility model discloses a Type-C adapter, which comprises a shell, a quick charging circuit, a switching circuit, a DC-DC circuit, a Type-C signal transmission circuit and a protocol chip U5, wherein the quick charging circuit, the switching circuit, the DC-DC circuit, the Type-C signal transmission circuit and the protocol chip U5 are arranged in the shell; the fast charging circuit, the switching circuit, the DC-DC circuit and the Type-C signal transmission circuit are respectively connected with the protocol chip U5; the shell is further provided with a Type-C main connector, a PD quick charging interface and a USB3.2 interface, and the Type-C main connector, the PD quick charging interface and the USB3.2 interface are connected with the protocol chip U5. The microphone supports PD fast charging and audio reading, not only supports conventional USB flash disk reading, but also supports a high-power SSD card storage function or a solid state disk reading function, has the advantages of bidirectional power supply independent switch control, no voltage drop in conduction and low cost, and can be used for PD fast charging, mobile phone audio expansion, recording storage, charging and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of Type-C connectors, and in particular to a Type-C adapter. Background Art

[0002] USB Type-C is a USB interface appearance standard that is smaller than Type-A and Type-B. It can be used for both PCs (host devices) and external devices (slave devices, such as mobile phones).

[0003] The current Type-C adapters have low quality and safety and are uneven. Although they support fast charging and audio data reading functions, they only support regular USB flash drive reading and are not recognized or compatible with high-power hard drives. Utility Model Content

[0004] The main purpose of the utility model is to provide a Type-C adapter, aiming to improve the compatibility of the Type-C adapter.

[0005] To achieve the above object, the utility model proposes a Type-C adapter, comprising: a housing, a fast charging circuit, a switch circuit, a DC-DC circuit, a Type-C signal transmission circuit and a protocol chip U5 arranged in the housing;

[0006] Among them, the fast charging circuit, the switching circuit, the DC-DC circuit and the Type-C signal transmission circuit are respectively connected to the protocol chip U5;

[0007] The shell is also provided with a Type-C main connector, a PD fast charging interface and a USB3.2 interface, and the Type-C main connector, the PD fast charging interface and the USB3.2 interface are respectively connected to the protocol chip U5.

[0008] A further technical solution of the utility model is that the fast charging circuit includes chip P1, chip P2, capacitor C11, capacitor C10, resistor R7, resistor R8, resistor R9, resistor R10, resistor R11, resistor R12, resistor R13, resistor R14, resistor R16, MOS tube U3B and MOS tube U3A;

[0009] Pin B5 of the chip P1 is connected to one end of the resistor R16, and the other end of the resistor R16 is grounded. Pins B1, B12, A1 and A12 of the chip P1 are grounded. Pins A6 and A7 of the chip P1 are connected to the Type-C signal transmission circuit. Pin A9 of the chip P1 is connected to one end of the capacitor C11, the drain of the MOS tube U3B, and one end of the resistor R10. The other end of the capacitor C11 and the other end of the resistor R10 are grounded. The gate of the MOS tube U3B is connected to one end of the resistor R7 and one end of the resistor R11. The other end of the resistor R11 is connected to one end of the resistor R12 and the drain of the MOS tube U3A. The drain, the pin B4 of the chip P2, the source of the MOS tube U3B is connected to the other end of the resistor R7, one end of the resistor R8, one end of the capacitor C10, and the source of the MOS tube U3B, the other end of the capacitor C10 is grounded, the other end of the resistor R8 is connected to one end of the resistor R9 and the gate of the MOS tube U3A, the pin B5 of the chip P2 is connected to one end of the resistor R14, and the other end of the resistor R14 is grounded, the pin A5 of the chip P2 is connected to one end of the resistor R13, and the other end of the resistor R13 is grounded, the pin A4 of the chip P2 is connected to the protocol chip U5, and the pins A5 and B5 of the chip P2 are connected to the switching circuit.

[0010] A further technical solution of the utility model is that the switch circuit includes a chip U4, a pin CH0 of the chip U4 is connected to a pin A5 of the chip P2, a pin CH0 of the chip U4 is connected to a pin B5 of the chip P2, and a pin SEL of the chip U4 is connected to the protocol chip U5.

[0011] A further technical solution of the utility model is that the Type-C signal transmission circuit includes a chip P3, a resistor R18, a resistor R19, a capacitor C14 and a capacitor C15, the pin D+ and the pin D+2 of the chip P3 are connected to the pin A6 of the chip P1, the pins D- and D-2 of the chip P3 are connected to the pin A7 of the chip P1, the pin CC1 of the chip P3 is connected to one end of the resistor R18, the other end of the resistor R18 is connected to the pin VBUS1 and the pin VBUS2 of the chip P3, one end of the capacitor C14, one end of the capacitor C15 and the DC-DC circuit, the other end of the capacitor C14 and the other end of the capacitor C15 are grounded, the pin VBUS3 of the chip P3 is connected to the pin VBUS4 of the chip P3 and one end of the resistor R19, and the other end of the resistor R19 is connected to the pin CC2 of the chip P3.

[0012] A further technical solution of the utility model is that the DC-DC circuit includes a chip U1, an inductor L1, a capacitor C16, a capacitor C17, a capacitor C18, a capacitor C19, a capacitor C20, a resistor R20, a resistor R21 and a resistor R22, one end of the capacitor C16 is connected to one end of the capacitor C17 and a pin IN of the chip U1, the other end of the capacitor C16 is connected to the other end of the capacitor C17, a pin GND of the chip U1, and grounded, one end of the resistor R20 is connected to a pin EN of the chip U1, and the chip U Pin SW of chip U1 is connected to one end of the capacitor C18 and one end of the inductor L1, the other end of the capacitor C18 is connected to pin BST of chip U1, the other end of the inductor L1 is connected to one end of the capacitor C19, one end of the resistor R21, one end of the capacitor C20 and pin VBUS1 of chip P3, pin FB of chip U1 is connected to the other end of the capacitor C19, the other end of the capacitor R21 and one end of the resistor R22, the other end of the resistor R22 is connected to the other end of the capacitor C20 and grounded.

[0013] A further technical solution of the utility model is that the protocol chip U5 includes a capacitor C12, a capacitor C13, a resistor R15, and a resistor R17, the pin 16 of the protocol chip U5 is connected to the pin SEL of the chip U4, the pin 8 of the protocol chip U5 is connected to one end of the resistor R17, the other end of the resistor R17 is connected to the pin A4 of the chip P2, one end of the capacitor C12 is connected to the pin VDD of the protocol chip U5, the other end of the capacitor C12 is grounded, the pin GND of the protocol chip U5 is grounded, the pin VHV of the protocol chip U5 is connected to one end of the resistor R15 and one end of the capacitor C13, and the other end of the capacitor C13 is grounded.

[0014] The beneficial effects of the Type-C adapter of the utility model are:

[0015] The utility model supports PD fast charging and audio reading microphone. It not only supports conventional U disk reading, but also supports high-power SSD card storage or solid-state hard disk reading function. The utility model has bidirectional power supply independent switch control, no voltage drop during conduction, low cost, and can be used for PD fast charging, mobile phone audio expansion, recording storage and charging and other functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the overall structure of the Type-C adapter of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the fast charging circuit;

[0019] Figure 3 It is a schematic diagram of the structure of the switching circuit;

[0020] Figure 4 It is a schematic diagram of the structure of the Type-C signal transmission circuit;

[0021] Figure 5 It is a schematic diagram of the structure of the DC-DC circuit;

[0022] Figure 6 It is a schematic diagram of the j structure of the protocol chip U5.

[0023] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Please refer to Figures 1 to 6 The utility model proposes a Type-C adapter, which supports PD fast charging and audio reading microphone. It not only supports conventional USB flash drive reading, but also supports high-power SSD card storage or solid-state hard drive reading function. The utility model has bidirectional power supply independent switch control, no voltage drop during conduction, low cost, and can be used for PD fast charging, mobile phone audio expansion, recording storage and charging and other functions.

[0026] The Type-C adapter of the utility model comprises: a shell 10, a fast charging circuit, a switch circuit, a DC-DC circuit, a Type-C signal transmission circuit and a protocol chip U5 arranged in the shell 10.

[0027] Among them, the fast charging circuit, the switching circuit, the DC-DC circuit and the Type-C signal transmission circuit are respectively connected to the protocol chip U5.

[0028] The shell 10 is also provided with a Type-C main connector 20, a PD fast charging interface 30 and a USB3.2 interface 40, and the Type-C main connector 20, the PD fast charging interface 30 and the USB3.2 interface 40 are respectively connected to the protocol chip U5.

[0029] In this embodiment, the fast charging circuit includes chip P1, chip P2, capacitor C11, capacitor C10, resistor R7, resistor R8, resistor R9, resistor R10, resistor R11, resistor R12, resistor R13, resistor R14, resistor R16, MOS tube U3B and MOS tube U3A.

[0030] Pin B5 of the chip P1 is connected to one end of the resistor R16, and the other end of the resistor R16 is grounded. Pins B1, B12, A1 and A12 of the chip P1 are grounded. Pins A6 and A7 of the chip P1 are connected to the Type-C signal transmission circuit. Pin A9 of the chip P1 is connected to one end of the capacitor C11, the drain of the MOS tube U3B, and one end of the resistor R10. The other end of the capacitor C11 and the other end of the resistor R10 are grounded. The gate of the MOS tube U3B is connected to one end of the resistor R7 and one end of the resistor R11. The other end of the resistor R11 is connected to one end of the resistor R12 and the drain of the MOS tube U3A. The drain, the pin B4 of the chip P2, the source of the MOS tube U3B is connected to the other end of the resistor R7, one end of the resistor R8, one end of the capacitor C10, and the source of the MOS tube U3B, the other end of the capacitor C10 is grounded, the other end of the resistor R8 is connected to one end of the resistor R9 and the gate of the MOS tube U3A, the pin B5 of the chip P2 is connected to one end of the resistor R14, and the other end of the resistor R14 is grounded, the pin A5 of the chip P2 is connected to one end of the resistor R13, and the other end of the resistor R13 is grounded, the pin A4 of the chip P2 is connected to the protocol chip U5, and the pins A5 and B5 of the chip P2 are connected to the switching circuit.

[0031] In this embodiment, the switch circuit includes a chip U4, a pin CH0 of the chip U4 is connected to a pin A5 of the chip P2, a pin CH0 of the chip U4 is connected to a pin B5 of the chip P2, and a pin SEL of the chip U4 is connected to the protocol chip U5.

[0032] In this embodiment, the Type-C signal transmission circuit includes a chip P3, a resistor R18, a resistor R19, a capacitor C14 and a capacitor C15. The pin D+ and the pin D+2 of the chip P3 are connected to the pin A6 of the chip P1, the pins D- and D-2 of the chip P3 are connected to the pin A7 of the chip P1, the pin CC1 of the chip P3 is connected to one end of the resistor R18, the other end of the resistor R18 is connected to the pin VBUS1 and the pin VBUS2 of the chip P3, one end of the capacitor C14, one end of the capacitor C15 and the DC-DC circuit, the other end of the capacitor C14 and the other end of the capacitor C15 are grounded, the pin VBUS3 of the chip P3 is connected to the pin VBUS4 of the chip P3 and one end of the resistor R19, and the other end of the resistor R19 is connected to the pin CC2 of the chip P3.

[0033] In this embodiment, the DC-DC circuit includes a chip U1, an inductor L1, a capacitor C16, a capacitor C17, a capacitor C18, a capacitor C19, a capacitor C20, a resistor R20, a resistor R21 and a resistor R22, one end of the capacitor C16 is connected to one end of the capacitor C17 and a pin IN of the chip U1, the other end of the capacitor C16 is connected to the other end of the capacitor C17, a pin GND of the chip U1, and grounded, one end of the resistor R20 is connected to a pin EN of the chip U1, and a pin S of the chip U1 is connected to a pin S of the chip U1. W is connected to one end of the capacitor C18 and one end of the inductor L1. The other end of the capacitor C18 is connected to the pin BST of the chip U1. The other end of the inductor L1 is connected to one end of the capacitor C19, one end of the resistor R21, one end of the capacitor C20 and the pin VBUS1 of the chip P3. The pin FB of the chip U1 is connected to the other end of the capacitor C19, the other end of the capacitor R21 and one end of the resistor R22. The other end of the resistor R22 is connected to the other end of the capacitor C20 and is grounded.

[0034] In this embodiment, the protocol chip U5 includes a capacitor C12, a capacitor C13, a resistor R15, and a resistor R17. Pin 16 of the protocol chip U5 is connected to pin SEL of the chip U4, pin 8 of the protocol chip U5 is connected to one end of the resistor R17, and the other end of the resistor R17 is connected to pin A4 of the chip P2. One end of the capacitor C12 is connected to pin VDD of the protocol chip U5, and the other end of the capacitor C12 is grounded. Pin GND of the protocol chip U5 is grounded, and pin VHV of the protocol chip U5 is connected to one end of the resistor R15 and one end of the capacitor C13, and the other end of the capacitor C13 is grounded.

[0035] The beneficial effects of the Type-C adapter of the utility model are:

[0036] The utility model supports PD fast charging and audio reading microphone. It not only supports conventional U disk reading, but also supports high-power SSD card storage or solid-state hard disk reading function. The utility model has bidirectional power supply independent switch control, no voltage drop during conduction, low cost, and can be used for PD fast charging, mobile phone audio expansion, recording storage and charging and other functions.

[0037] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A Type-C adapter, characterized in that: include: A housing, a fast charging circuit, a switch circuit, a DC-DC circuit, a Type-C signal transmission circuit, and a protocol chip U5 arranged in the housing; Among them, the fast charging circuit, the switching circuit, the DC-DC circuit and the Type-C signal transmission circuit are respectively connected to the protocol chip U5; The shell is also provided with a Type-C main connector, a PD fast charging interface and a USB3.2 interface, and the Type-C main connector, the PD fast charging interface and the USB3.2 interface are respectively connected to the protocol chip U5.

2. The Type-C adapter according to claim 1, characterized in that: The fast charging circuit includes chip P1, chip P2, capacitor C11, capacitor C10, resistor R7, resistor R8, resistor R9, resistor R10, resistor R11, resistor R12, resistor R13, resistor R14, resistor R16, MOS tube U3B and MOS tube U3A; Pin B5 of the chip P1 is connected to one end of the resistor R16, and the other end of the resistor R16 is grounded. Pins B1, B12, A1 and A12 of the chip P1 are grounded. Pins A6 and A7 of the chip P1 are connected to the Type-C signal transmission circuit. Pin A9 of the chip P1 is connected to one end of the capacitor C11, the drain of the MOS tube U3B, and one end of the resistor R10. The other end of the capacitor C11 and the other end of the resistor R10 are grounded. The gate of the MOS tube U3B is connected to one end of the resistor R7 and one end of the resistor R11. The other end of the resistor R11 is connected to one end of the resistor R12 and the drain of the MOS tube U3A. The drain, the pin B4 of the chip P2, the source of the MOS tube U3B is connected to the other end of the resistor R7, one end of the resistor R8, one end of the capacitor C10, and the source of the MOS tube U3B, the other end of the capacitor C10 is grounded, the other end of the resistor R8 is connected to one end of the resistor R9 and the gate of the MOS tube U3A, the pin B5 of the chip P2 is connected to one end of the resistor R14, and the other end of the resistor R14 is grounded, the pin A5 of the chip P2 is connected to one end of the resistor R13, and the other end of the resistor R13 is grounded, the pin A4 of the chip P2 is connected to the protocol chip U5, and the pins A5 and B5 of the chip P2 are connected to the switching circuit.

3. The Type-C adapter according to claim 2, characterized in that: The switch circuit includes a chip U4, a pin CH0 of the chip U4 is connected to a pin A5 of the chip P2, a pin CH0 of the chip U4 is connected to a pin B5 of the chip P2, and a pin SEL of the chip U4 is connected to the protocol chip U5.

4. The Type-C adapter according to claim 3, characterized in that: The Type-C signal transmission circuit includes a chip P3, a resistor R18, a resistor R19, a capacitor C14 and a capacitor C15. Pins D+ and D+2 of the chip P3 are connected to pin A6 of the chip P1, pins D- and D-2 of the chip P3 are connected to pin A7 of the chip P1, pin CC1 of the chip P3 is connected to one end of the resistor R18, the other end of the resistor R18 is connected to pins VBUS1 and VBUS2 of the chip P3, one end of the capacitor C14, one end of the capacitor C15 and the DC-DC circuit, the other end of the capacitor C14 and the other end of the capacitor C15 are grounded, pin VBUS3 of the chip P3 is connected to pin VBUS4 of the chip P3 and one end of the resistor R19, and the other end of the resistor R19 is connected to pin CC2 of the chip P3.

5. The Type-C adapter according to claim 4, characterized in that: The DC-DC circuit includes a chip U1, an inductor L1, a capacitor C16, a capacitor C17, a capacitor C18, a capacitor C19, a capacitor C20, a resistor R20, a resistor R21 and a resistor R22, one end of the capacitor C16 is connected to one end of the capacitor C17 and a pin IN of the chip U1, the other end of the capacitor C16 is connected to the other end of the capacitor C17, a pin GND of the chip U1, and grounded, one end of the resistor R20 is connected to a pin EN of the chip U1, and a pin SW of the chip U1 is connected One end of the capacitor C18 and one end of the inductor L1, and the other end of the capacitor C18 are connected to the pin BST of the chip U1, the other end of the inductor L1 is connected to one end of the capacitor C19, one end of the resistor R21, one end of the capacitor C20 and the pin VBUS1 of the chip P3, the pin FB of the chip U1 is connected to the other end of the capacitor C19, the other end of the capacitor R21, and one end of the resistor R22, the other end of the resistor R22 is connected to the other end of the capacitor C20 and grounded.

6. The Type-C adapter according to claim 5, characterized in that: The protocol chip U5 includes capacitor C12, capacitor C13, resistor R15, and resistor R17. Pin 16 of the protocol chip U5 is connected to pin SEL of the chip U4. Pin 8 of the protocol chip U5 is connected to one end of the resistor R17. The other end of the resistor R17 is connected to pin A4 of the chip P2. One end of the capacitor C12 is connected to pin VDD of the protocol chip U5. The other end of the capacitor C12 is grounded. Pin GND of the protocol chip U5 is grounded. Pin VHV of the protocol chip U5 is connected to one end of the resistor R15 and one end of the capacitor C13. The other end of the capacitor C13 is grounded.

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