Type-C joint conversion circuit and conversion joint
By designing the deception adapter voltage circuit and the boost charging circuit in the Type-C connector, the problem of inconsistent adapter voltages of different devices is solved, and the universality and convenience of the Type-C connector is achieved.
Patent Information
- Application Number
- CN202421237855.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-05-31
AI Technical Summary
When used between different devices, the existing Type-C connectors are not universal due to the different voltage output by the adapter, and different connectors need to be equipped with each other.
A Type-C connector conversion circuit is designed, including a deception adapter voltage circuit and a boost charging circuit. Different voltages are converted into standard voltages through the deception adapter voltage circuit, and voltage boost conversion is carried out through the boost charging circuit to achieve universality for different output voltage adapters.
It realizes the universal adapter with different output voltages, meeting the connection and charging needs of various adapters. It has a simple structure and is convenient to use, greatly improving the convenience of use.
Smart Images

Figure CN222602090U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of communication circuits, and in particular to a Type-C connector conversion circuit and a conversion connector. Background Art
[0002] The Type-C connector is a very common universal connector in circuits, used to connect devices or charge, including a Type-C male connector and a Type-C female connector. One end of the Type-C male connector can have a Type-C interface, and the Type-C female connector usually includes an interface for connecting to the Type-C male connector of the device. This interface is compatible with the Type-C male connector, making the connection simpler. It is usually used to connect to a cable to connect the device to other devices or chargers. It can be connected to the Type-C male connector to connect devices such as mobile phones, tablets, TVs and other USB-C compatible devices. In addition, the Type-C female connector is also commonly found at one end of a charging cable, which can be connected to a power adapter or USB port to provide power to the device. In the prior art, the voltage source provided by the adapter for different devices will be different. In this way, when using a Type-C conversion connector, adapters with different voltages are usually matched to charge the battery of the device, which will cause the Type-C connector to be incompatible, and different devices need to be equipped with corresponding Type-C connectors. Summary of the invention
[0003] The technical problem to be solved by the present invention is to provide a Type-C connector conversion circuit and a conversion connector in view of the deficiencies of the above-mentioned prior art.
[0004] The utility model solves the above-mentioned technical problem through the following technical solution: a Type-C connector conversion circuit and a conversion connector, comprising a deceptive adapter voltage circuit, a boost charging circuit and a rechargeable battery, wherein the input end of the deceptive adapter voltage circuit is connected to the output end of the adapter, the output end of the deceptive adapter voltage circuit is electrically connected to the input end of the boost charging circuit, and the output end of the boost charging circuit is electrically connected to the rechargeable battery.
[0005] The beneficial effects of the utility model are as follows: the Type-C connector conversion circuit of the utility model can convert the different voltages output by each adapter through the adapter voltage deception circuit, and then perform voltage boost conversion through the boost charging circuit, and finally charge the rechargeable battery, thereby achieving universal use of adapters with different output voltages, meeting the connection and charging requirements of various adapters, having a simple structure, and being easy to use, which greatly improves the convenience of use.
[0006] On the basis of the above technical solution, the present invention can also be improved as follows:
[0007] Further: the decoy adapter voltage circuit includes a Type-C socket J1, a resistor R11, a resistor R12, a capacitor C4, a diode D5, a diode D6, a capacitor C5, a decoy chip U4, a capacitor C6, a resistor R14, a resistor R15, a resistor R16, an indicator light LED1, an indicator light LED2 and a connection terminal J2, the pin 14 of the Type-C socket J1 is electrically connected to the power input end of the decoy chip U4 through the resistor R12, the power input end of the decoy chip U4 is grounded through the capacitor C4, the Type-C socket connection end of the decoy chip U4 is electrically connected to the pin 11 of the Type-C socket J1 through the resistor R11, the capacitor C5 and the capacitor C6 are connected in parallel between the first Type-C socket connection end of the decoy chip U4 and the ground, the first Type-C socket connection end of the decoy chip U4 is electrically connected to the cathode of the diode D5, the anode of the diode D5 is grounded, and the function selection end of the decoy chip U4 is connected to the ground through the capacitor C4. The resistor R13 is grounded, the first output end and the second output end of the decoy chip U4 are electrically connected to pin 7 and pin 10 of the Type-C socket J1 through the resistor R15 and the resistor R16 respectively, the second Type-C socket connection end of the decoy chip U4 is electrically connected to pin 6 of the Type-C socket J1 through the resistor R14, the second Type-C socket connection end of the decoy chip U4 is electrically connected to the cathode of the diode D6, the anode of the diode D6 is grounded, pin 3 of the Type-C socket J1 is electrically connected to pin 2 of the connection terminal J2, pin 2 of the connection terminal J2 is electrically connected to the power input end of the boost charging circuit, pin 1 of the connection terminal J2 is grounded, pin 3 of the connection terminal J2 is electrically connected to the anode of the indicator light LED1 and the indicator light LED2 respectively, and the cathode of the indicator light LED1 and the indicator light LED2 are electrically connected to pin 4 and pin 5 of the connection terminal J2 respectively.
[0008] The beneficial effect of the above further scheme is: the power supply voltage is provided to the decoy chip U4 through the Type-C socket J1, the decoy chip U4 triggers different output voltages according to the blocking size of the resistor R13, and returns to pin 3 of the Type-C socket J1, and pin 3 of the Type-C socket J1 provides a formatted power supply voltage for the boost charging circuit, the resistor R12 and the capacitor C14 form a rectification and filtering circuit, and the voltage provided by the Type-C socket is rectified and filtered, and the resistor R11, diode D5, capacitor C5, capacitor C6, diode D6 and resistor R14 form a voltage stabilization and filtering circuit and perform voltage stabilization and filtering.
[0009] Further: the boost charging circuit includes a charging current detection circuit, a connector J3, a capacitor C1, a capacitor C3, a capacitor C16, an inductor L1, a resistor R10, a boost chip U3, a MOS tube Q3, a MOS tube Q4, a diode D2, a diode D3, a diode D4, a connector J4, a capacitor C15, a resistor R8, a resistor R9, a resistor R1, a resistor R2, a capacitor C14, a capacitor C10 and a capacitor C13. The capacitor C1, the capacitor C3 and the capacitor C16 are connected in parallel between the output end of the decoy adapter voltage circuit and the ground. Pin 1 of the connector J3 is grounded. The output end of the decoy adapter voltage circuit is electrically connected to pin No. 2 of the connector J3, and pin No. 2 of the connector J3 is electrically connected to one end of the inductor L1 and the input end of the charging current detection circuit respectively. The other end of the inductor L1 is electrically connected to the positive electrodes of the diode D2, the diode D3 and the diode D4 respectively, and the negative electrodes of the diode D2, the diode D3 and the diode D4 are electrically connected to pin No. 2 of the connector J4 respectively, and pin No. 2 of the connector J4 is electrically connected to the positive electrode of the rechargeable battery. The capacitor C14 is connected in parallel between the negative electrode of the diode D2 and the ground. , capacitor C10 and capacitor C13, the resistor R1 and the resistor R2 are connected in series between the cathode of the diode D2 and the ground, the other end of the inductor L1 is electrically connected to the drain of the MOS tube Q3 and the drain of the MOS tube Q4 respectively, the source of the MOS tube Q3 is electrically connected to the source of the MOS tube Q4, the gate of the MOS tube Q3 and the gate of the MOS tube Q4 are electrically connected to the gate input of the boost chip U3 respectively, the power input end of the boost chip U3 is connected to the output end of the decoy adapter voltage circuit, and the power input end of the boost chip U3 is connected to the enable end. The resistor R10 is electrically connected, the operating frequency input terminal of the boost chip U3 is grounded through the resistor R8, the feedback input terminal of the boost chip U3 is electrically connected to the common terminal of the resistor R1 and the resistor R2, the soft start input terminal of the boost chip U3 is grounded through the capacitor C15, the ground terminal of the boost chip U3 is grounded, the detection current input terminal of the boost chip U3 is electrically connected to the source of the MOS tube Q4, the detection current input terminal of the boost chip U3 is grounded through the resistor R9, and the output terminal of the charging current detection circuit is electrically connected to the negative electrode of the rechargeable battery.
[0010] The beneficial effects of the above further scheme are: the voltage provided by the output end of the decoy adapter voltage circuit is filtered by the capacitors C1, C3 and C16, the voltage is boosted and converted by the boost chip U3, the MOS tubes Q3 and Q4 act as switches, the resistors R1 and R2 form a voltage divider circuit, and the output voltage is sampled and fed back to the boost chip U3, the diodes D2, D3 and D4 act as reverse connection protection, and the capacitors C14, C10 and C13 filter the output voltage.
[0011] Further: the boost chip U3 adopts a chip model SC 3671.
[0012] Further: the charging current detection circuit includes capacitor C8, capacitor C9, voltage regulator chip U2, resistor R6, charging chip U1, resistor R4, MOS tube Q1, MOS tube Q2, resistor R5, capacitor C12, resistor R3, resistor R1A and resistor R1B, the input end of the voltage regulator chip U2 is connected to the output end of the decoy adapter voltage circuit, the input end of the voltage regulator chip U2 is grounded through the capacitor C8, the ground end of the voltage regulator chip U2 is grounded, the output end of the voltage regulator chip U2 is grounded through the capacitor C9, the output end of the voltage regulator chip U2 is electrically connected to pin 3 of the connector J3 through the resistor R6, pin 3 of the connector J3 is electrically connected to the positive electrode of the indicator LED1, the output end of the voltage regulator chip U2 is electrically connected to the first drain of the charging chip U1, the first source of the charging chip U1 is electrically connected to pins 4 and 5 of the connector J3 respectively, the Pin No. 4 and Pin No. 5 of the connector J3 are electrically connected to the negative electrodes of the indicator light LED1 and the indicator light LED2 respectively, the first gate of the charging chip U1 is unloaded, the second gate of the charging chip U1 is electrically connected to the gate of the MOS tube Q1 and the gate of the MOS tube Q2 respectively through the resistor R4, the drain of the MOS tube Q1 and the drain of the MOS tube Q2 are electrically connected to Pin No. 1 of the connector J4 respectively, the pin No. 1 of the connector J4 is electrically connected to the negative electrode of the rechargeable battery, the source of the MOS tube Q1 is electrically connected to the source of the MOS tube Q2, and the resistor R1A and the resistor R1A are connected in parallel between the source of the MOS tube Q1 and the ground. B. The resistor R3 and the capacitor C12 are connected in series between the source of the MOS tube Q1 and the ground, and the common end of the resistor R3 and the capacitor C12 is electrically connected to the second source of the charging chip U1, the second drain of the charging chip U1 is grounded, and the second drain of the charging chip U1 is electrically connected to the gate of the MOS tube Q2 through the resistor R5.
[0013] The beneficial effect of the above further scheme is: the voltage output by the decoy adapter voltage circuit is stabilized by the voltage stabilizing chip U2, and the charging chip U1 is powered, the charging current is collected by the resistor R1A and the resistor R1B, and the voltage is converted by the resistor R3 and then fed back to the sampling feedback end of the charging chip U1, so as to control the MOS tube Q1 and the MOS tube Q2 to be disconnected after full charging, realize automatic charging stop, and ensure charging safety.
[0014] Further: the voltage stabilizing chip U2 adopts a voltage stabilizing chip of model HT7150.
[0015] Further: the charging chip U1 adopts an operational amplifier chip of model 8205.
[0016] The utility model also provides a Type-C conversion connector, including a first shell with a hollow interior, a second shell and the Type-C connector conversion circuit, the first shell is provided with the decoy adapter voltage circuit, the second shell is provided with the boost charging circuit, the Type-C female socket J1 of the decoy adapter voltage circuit is embedded on the side wall of the first shell, the connection socket J3 and the connection socket J4 of the boost charging circuit are respectively provided on opposite sides of the second shell, and the connection socket J3 is electrically connected to the Type-C female socket J1 through a cable, and the connection socket J4 is plugged into the charging plug of the rechargeable battery. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the structure of a Type-C connector conversion circuit according to an embodiment of the present utility model;
[0018] Figure 2 A circuit diagram of a circuit for deceiving an adapter voltage according to an embodiment of the utility model;
[0019] Figure 3 It is a circuit diagram of a boost charging circuit according to an embodiment of the utility model;
[0020] Figure 4 This is a schematic diagram of the Type-C conversion connector structure of an embodiment of the utility model;
[0021] Figure 5 This is a schematic diagram of the Type-C conversion connector structure of another embodiment of the utility model;
[0022] Figure 6 This is a schematic diagram of the Type-C conversion connector structure of another embodiment of the utility model;
[0023] Figure 7 This is a schematic structural diagram of a conversion joint according to an embodiment of the utility model;
[0024] Figure 8 This is a schematic structural diagram of a conversion joint according to another embodiment of the utility model;
[0025] Fig. 9 This is a schematic structural diagram of a conversion joint according to another embodiment of the present utility model.
[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0027] 1. a first shell, 2. a second shell. DETAILED DESCRIPTION
[0028] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.
[0029] like Figure 1 As shown, a Type-C connector conversion circuit includes a decoy adapter voltage circuit, a boost charging circuit and a rechargeable battery, wherein the input end of the decoy adapter voltage circuit is connected to the output end of the adapter, the output end of the decoy adapter voltage circuit is electrically connected to the input end of the boost charging circuit, and the output end of the boost charging circuit is electrically connected to the rechargeable battery.
[0030] The Type-C connector conversion circuit of the utility model can convert different voltages output by each adapter through the adapter voltage deception circuit, and then perform voltage boost conversion through the boost charging circuit, and finally charge the rechargeable battery, thereby achieving universal use of adapters with different output voltages, meeting the connection and charging requirements of various adapters, having a simple structure, and being easy to use, greatly improving the convenience of use.
[0031] In practice, the decoy adapter voltage circuit can convert the different voltages output by each adapter to output various voltages such as 5V9V 12V 20V 24V, etc., to power the boost charging circuit, and then boost the voltage through the boost charging circuit to obtain various voltages such as 6V, 12V, 18V, 24V, 36V, 42V72V, etc. to charge the rechargeable battery.
[0032] like Figure 2As shown, in one or more embodiments of the utility model, the decoy adapter voltage circuit includes a Type-C socket J1, a resistor R11, a resistor R12, a capacitor C4, a diode D5, a diode D6, a capacitor C5, a decoy chip U4, a capacitor C6, a resistor R14, a resistor R15, a resistor R16, an indicator light LED1, an indicator light LED2 and a connection terminal J2, the pin 14 of the Type-C socket J1 is electrically connected to the power input end of the decoy chip U4 through the resistor R12, the power input end of the decoy chip U4 is grounded through the capacitor C4, the Type-C socket connection end of the decoy chip U4 is electrically connected to the pin 11 of the Type-C socket J1 through the resistor R11, the capacitor C5 and the capacitor C6 are connected in parallel between the first Type-C socket connection end of the decoy chip U4 and the ground, the first Type-C socket connection end of the decoy chip U4 is electrically connected to the cathode of the diode D5, the anode of the diode D5 is grounded, and the The function selection end is grounded through the resistor R13, the first output end and the second output end of the decoy chip U4 are electrically connected to pins 7 and 10 of the Type-C socket J1 through the resistor R15 and the resistor R16 respectively, the second Type-C socket connection end of the decoy chip U4 is electrically connected to pin 6 of the Type-C socket J1 through the resistor R14, the second Type-C socket connection end of the decoy chip U4 is electrically connected to the cathode of the diode D6, the anode of the diode D6 is grounded, pin 3 of the Type-C socket J1 is electrically connected to pin 2 of the connection terminal J2, pin 2 of the connection terminal J2 is electrically connected to the power input end of the boost charging circuit, pin 1 of the connection terminal J2 is grounded, pin 3 of the connection terminal J2 is electrically connected to the anodes of the indicator light LED1 and the indicator light LED2 respectively, and the cathodes of the indicator light LED1 and the indicator light LED2 are electrically connected to pins 4 and 5 of the connection terminal J2 respectively. The Type-C socket J1 provides a power supply voltage for the decoy chip U4, and the decoy chip U4 triggers different output voltages according to the blocking size of the resistor R13, and returns to pin 3 of the Type-C socket J1. Pin 3 of the Type-C socket J1 provides a formatted power supply voltage for the boost charging circuit. The resistor R12 and the capacitor C14 form a rectifier and filter circuit to rectify and filter the voltage provided by the Type-C socket. The resistor R11, the diode D5, the capacitor C5, the capacitor C6, the diode D6 and the resistor R14 form a voltage stabilization and filtering circuit and perform voltage stabilization and filtering.
[0033] like Figure 3As shown, in one or more embodiments of the utility model, the boost charging circuit includes a charging current detection circuit, a connector J3, a capacitor C1, a capacitor C3, a capacitor C16, an inductor L1, a resistor R10, a boost chip U3, a MOS tube Q3, a MOS tube Q4, a diode D2, a diode D3, a diode D4, a connector J4, a capacitor C15, a resistor R8, a resistor R9, a resistor R1, a resistor R2, a capacitor C14, a capacitor C10 and a capacitor C13. The capacitor C1, the capacitor C3 and the capacitor C16 are connected in parallel between the output end of the decoy adapter voltage circuit and the ground. Pin No. 1 of the connector J3 is grounded, the output end of the decoy adapter voltage circuit is electrically connected to pin No. 2 of the connector J3, pin No. 2 of the connector J3 is electrically connected to one end of the inductor L1 and the input end of the charging current detection circuit respectively, the other end of the inductor L1 is electrically connected to the positive electrodes of the diode D2, the diode D3 and the diode D4 respectively, the negative electrodes of the diode D2, the diode D3 and the diode D4 are electrically connected to pin No. 2 of the connector J4, pin No. 2 of the connector J4 is electrically connected to the positive electrode of the rechargeable battery respectively, the negative electrode of the diode D2 is connected in parallel with the ground The capacitor C14, the capacitor C10 and the capacitor C13 are provided, the resistor R1 and the resistor R2 are connected in series between the cathode of the diode D2 and the ground, the other end of the inductor L1 is electrically connected to the drain of the MOS tube Q3 and the drain of the MOS tube Q4 respectively, the source of the MOS tube Q3 is electrically connected to the source of the MOS tube Q4, the gate of the MOS tube Q3 and the gate of the MOS tube Q4 are electrically connected to the gate input of the boost chip U3 respectively, the power input end of the boost chip U3 is connected to the output end of the decoy adapter voltage circuit, and the power input end of the boost chip U3 is connected to the output end of the decoy adapter voltage circuit. The resistor R10 is electrically connected between the power terminals, the operating frequency input terminal of the boost chip U3 is grounded through the resistor R8, the feedback input terminal of the boost chip U3 is electrically connected to the common terminal of the resistor R1 and the resistor R2, the soft start input terminal of the boost chip U3 is grounded through the capacitor C15, the ground terminal of the boost chip U3 is grounded, the detection current input terminal of the boost chip U3 is electrically connected to the source of the MOS tube Q4, the detection current input terminal of the boost chip U3 is grounded through the resistor R9, and the output terminal of the charging current detection circuit is electrically connected to the negative electrode of the rechargeable battery.The voltage provided by the output end of the decoy adapter voltage circuit is filtered by the capacitors C1, C3 and C16, the voltage is boosted and converted by the boost chip U3, the MOS tubes Q3 and Q4 act as switches, the resistors R1 and R2 form a voltage divider circuit, and the output voltage is sampled and fed back to the boost chip U3, the diodes D2, D3 and D4 act as reverse connection protection, and the capacitors C14, C10 and C13 filter the output voltage.
[0034] Optionally, in one or more embodiments of the present invention, the boost chip U3 is a chip of model SC3671.
[0035] In one or more embodiments of the utility model, the charging current detection circuit includes a capacitor C8, a capacitor C9, a voltage stabilizing chip U2, a resistor R6, a charging chip U1, a resistor R4, a MOS tube Q1, a MOS tube Q2, a resistor R5, a capacitor C12, a resistor R3, a resistor R1A and a resistor R1B, the input end of the voltage stabilizing chip U2 is connected to the output end of the decoy adapter voltage circuit, the input end of the voltage stabilizing chip U2 is grounded through the capacitor C8, the ground end of the voltage stabilizing chip U2 is grounded, the output end of the voltage stabilizing chip U2 is grounded through the capacitor C9, the output end of the voltage stabilizing chip U2 is electrically connected to pin No. 3 of the connector J3 through the resistor R6, the pin No. 3 of the connector J3 is electrically connected to the positive electrode of the indicator LED1, the output end of the voltage stabilizing chip U2 is electrically connected to the first drain of the charging chip U1, the first source of the charging chip U1 is electrically connected to pins No. 4 and No. 5 of the connector J3 respectively, and the connector Pins 4 and 5 of the connector J3 are electrically connected to the negative electrodes of the indicator light LED1 and the indicator light LED2, respectively. The first gate of the charging chip U1 is unloaded. The second gate of the charging chip U1 is electrically connected to the gate of the MOS tube Q1 and the gate of the MOS tube Q2 through the resistor R4. The drain of the MOS tube Q1 and the drain of the MOS tube Q2 are electrically connected to pin 1 of the connector J4, respectively. Pin 1 of the connector J4 is electrically connected to the negative electrode of the rechargeable battery. The source of the MOS tube Q1 is electrically connected to the source of the MOS tube Q2. The resistor R1A and the resistor R1A are connected in parallel between the source of the MOS tube Q1 and the ground. B. The resistor R3 and the capacitor C12 are connected in series between the source of the MOS tube Q1 and the ground, and the common end of the resistor R3 and the capacitor C12 is electrically connected to the second source of the charging chip U1, the second drain of the charging chip U1 is grounded, and the second drain of the charging chip U1 is electrically connected to the gate of the MOS tube Q2 through the resistor R5.
[0036] The voltage output by the decoy adapter voltage circuit is stepped down to 5V by the voltage stabilizing chip U2, and the charging chip U1 is powered. The charging current is collected by the resistor R1A and the resistor R1B, and the voltage is converted by the resistor R3 and then fed back to the sampling feedback end of the charging chip U1, so as to control the MOS tube Q1 and the MOS tube Q2 to be disconnected after full charging, so as to automatically stop charging and ensure charging safety.
[0037] It should be pointed out that, in practice, the drain of the MOS tube Q1 and the drain of the MOS tube Q2 are electrically connected to the pin No. 1 of the connector J4, respectively, and the cathodes of the diodes D2, D3 and D4 are electrically connected to the pin No. 2 of the connector J4, respectively. To charge the battery, just plug the charging plug of the rechargeable battery into the connector J4.
[0038] In one or more embodiments of the present invention, the voltage stabilizing chip U2 is a voltage stabilizing chip of model HT7150.
[0039] In one or more embodiments of the present invention, the charging chip U1 uses an operational amplifier chip of model 8205.
[0040] like Figure 4-9 As shown, the utility model also provides a Type-C conversion connector, including a first shell 1 with a hollow interior, a second shell 2 and the Type-C connector conversion circuit, the first shell 1 is provided with the decoy adapter voltage circuit, the second shell 2 is provided with the boost charging circuit, the Type-C female socket J1 of the decoy adapter voltage circuit is embedded on the side wall of the first shell 1, the connection socket J3 and the connection socket J4 of the boost charging circuit are respectively provided on opposite sides of the second shell 2, and the connection socket J3 is electrically connected to the Type-C female socket J1 through a cable, and the connection socket J4 is plugged into the charging plug of the rechargeable battery.
[0041] In practice, the first housing 1 of different shapes can be selected according to specific application scenarios and user preferences, such as Figures 4 to 6 As shown, they are respectively a vertical housing, a triangular housing and a racetrack-shaped first housing 1. Correspondingly, the Type-C conversion connector also has different combinations, such as Figures 7 to 9As shown, there are three types of Type-C conversion connectors formed by the cooperation of the first shell 1 and the second shell 2 in a vertical shell, a triangular shell and a runway shape. Here, three types of first shells 1 and second shells 2 in different shapes are only schematically listed. In practice, first shells 1 of different shapes can be selected according to specific application scenarios and user preferences. Of course, second shells 2 of different shapes can also be set to be used in combination with the first shell 1. The utility model does not make any limitation, and all of these are within the protection scope of the utility model.
[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A Type-C connector conversion circuit, characterized in that : comprising a decoy adapter voltage circuit, a boost charging circuit and a rechargeable battery, wherein the input end of the decoy adapter voltage circuit is connected to the output end of the adapter, the output end of the decoy adapter voltage circuit is electrically connected to the input end of the boost charging circuit, and the output end of the boost charging circuit is electrically connected to the rechargeable battery; The decoy adapter voltage circuit includes a Type-C socket J1, a resistor R11, a resistor R12, a capacitor C4, a diode D5, a diode D6, a capacitor C5, a decoy chip U4, a capacitor C6, a resistor R14, a resistor R15, a resistor R16, an indicator light LED1, an indicator light LED2 and a connecting terminal J2. Pin 14 of the Type-C socket J1 is electrically connected to the power input end of the decoy chip U4 through the resistor R12. The power input end of the decoy chip U4 is grounded through the capacitor C4. The Type-C socket connection end of the decoy chip U4 is electrically connected to pin 11 of the Type-C socket J1 through the resistor R11. The capacitor C5 and the capacitor C6 are connected in parallel between the first Type-C socket connection end of the decoy chip U4 and the ground. The first Type-C socket connection end of the decoy chip U4 is electrically connected to the cathode of the diode D5. The anode of the diode D5 is grounded. The function selection end of the decoy chip U4 is electrically connected to the cathode of the diode D5. Resistor R13 is grounded, the first output end and the second output end of the decoy chip U4 are electrically connected to pin 7 and pin 10 of the Type-C socket J1 through the resistor R15 and the resistor R16 respectively, the second Type-C socket connection end of the decoy chip U4 is electrically connected to pin 6 of the Type-C socket J1 through the resistor R14, the second Type-C socket connection end of the decoy chip U4 is electrically connected to the cathode of the diode D6, the anode of the diode D6 is grounded, pin 3 of the Type-C socket J1 is electrically connected to pin 2 of the connection terminal J2, pin 2 of the connection terminal J2 is electrically connected to the power input end of the boost charging circuit, pin 1 of the connection terminal J2 is grounded, pin 3 of the connection terminal J2 is electrically connected to the anode of the indicator light LED1 and the indicator light LED2 respectively, and the cathode of the indicator light LED1 and the indicator light LED2 are electrically connected to pin 4 and pin 5 of the connection terminal J2 respectively.
2. The Type-C connector conversion circuit according to claim 1, characterized in that The boost charging circuit includes a charging current detection circuit, a connector J3, a capacitor C1, a capacitor C3, a capacitor C16, an inductor L1, a resistor R10, a boost chip U3, a MOS tube Q3, a MOS tube Q4, a diode D2, a diode D3, a diode D4, a connector J4, a capacitor C15, a resistor R8, a resistor R9, a resistor R1, a resistor R2, a capacitor C14, a capacitor C10 and a capacitor C13. The capacitor C1, the capacitor C3 and the capacitor C16 are connected in parallel between the output end of the decoy adapter voltage circuit and the ground. Pin 1 of the connector J3 is grounded. The output end of the decoy adapter voltage circuit is electrically connected to pin No. 2 of the connector J3, and pin No. 2 of the connector J3 is electrically connected to one end of the inductor L1 and the input end of the charging current detection circuit respectively, and the other end of the inductor L1 is electrically connected to the positive electrodes of the diode D2, the diode D3 and the diode D4 respectively, and the negative electrodes of the diode D2, the diode D3 and the diode D4 are electrically connected to pin No. 2 of the connector J4 respectively, and pin No. 2 of the connector J4 is electrically connected to the positive electrode of the rechargeable battery, and the capacitor C14, the capacitor C24 and the capacitor C3 are connected in parallel between the negative electrode of the diode D2 and the ground. The capacitor C10 and the capacitor C13, the resistor R1 and the resistor R2 are connected in series between the cathode of the diode D2 and the ground, the other end of the inductor L1 is electrically connected to the drain of the MOS tube Q3 and the drain of the MOS tube Q4 respectively, the source of the MOS tube Q3 is electrically connected to the source of the MOS tube Q4, the gate of the MOS tube Q3 and the gate of the MOS tube Q4 are electrically connected to the gate input of the boost chip U3 respectively, the power input end of the boost chip U3 is connected to the output end of the decoy adapter voltage circuit, and the power input end of the boost chip U3 is electrically connected to the enable end. The resistor R10 is connected, the operating frequency input end of the boost chip U3 is grounded through the resistor R8, the feedback input end of the boost chip U3 is electrically connected to the common end of the resistor R1 and the resistor R2, the soft start input end of the boost chip U3 is grounded through the capacitor C15, the ground end of the boost chip U3 is grounded, the detection current input end of the boost chip U3 is electrically connected to the source of the MOS tube Q4, the detection current input end of the boost chip U3 is grounded through the resistor R9, and the output end of the charging current detection circuit is electrically connected to the negative electrode of the rechargeable battery.
3. The Type-C connector conversion circuit according to claim 2, characterized in that The boost chip U3 is SC 3671.
4. The Type-C connector conversion circuit according to claim 2, characterized in that The charging current detection circuit includes a capacitor C8, a capacitor C9, a voltage stabilizing chip U2, a resistor R6, a charging chip U1, a resistor R4, a MOS tube Q1, a MOS tube Q2, a resistor R5, a capacitor C12, a resistor R3, a resistor R1A and a resistor R1B. The input end of the voltage stabilizing chip U2 is connected to the output end of the decoy adapter voltage circuit. The input end of the voltage stabilizing chip U2 is grounded through the capacitor C8, the ground end of the voltage stabilizing chip U2 is grounded, and the output end of the voltage stabilizing chip U2 is grounded through the capacitor C9. The output end of the voltage stabilizing chip U2 is electrically connected to the No. 3 pin of the connector J3 through the resistor R6, and the No. 3 pin of the connector J3 is electrically connected to the positive electrode of the indicator LED1. The output end of the voltage stabilizing chip U2 is electrically connected to the first drain of the charging chip U1, and the first source of the charging chip U1 is electrically connected to the No. 4 pin and the No. 5 pin of the connector J3 respectively. Pins 4 and 5 of the connector J3 are electrically connected to the negative electrodes of the indicator light LED1 and the indicator light LED2, respectively. The first gate of the charging chip U1 is unloaded. The second gate of the charging chip U1 is electrically connected to the gate of the MOS tube Q1 and the gate of the MOS tube Q2 through the resistor R4. The drain of the MOS tube Q1 and the drain of the MOS tube Q2 are electrically connected to pin 1 of the connector J4, respectively. Pin 1 of the connector J4 is electrically connected to the negative electrode of the rechargeable battery. The source of the MOS tube Q1 is electrically connected to the source of the MOS tube Q2. The resistor R1A and the resistor R1A are connected in parallel between the source of the MOS tube Q1 and the ground. B. The resistor R3 and the capacitor C12 are connected in series between the source of the MOS tube Q1 and the ground, and the common end of the resistor R3 and the capacitor C12 is electrically connected to the second source of the charging chip U1, the second drain of the charging chip U1 is grounded, and the second drain of the charging chip U1 is electrically connected to the gate of the MOS tube Q2 through the resistor R5.
5. The Type-C connector conversion circuit according to claim 4, characterized in that The voltage regulator chip U2 is a HT7150 voltage regulator chip.
6. The Type-C connector conversion circuit according to claim 4, characterized in that The charging chip U1 adopts an operational amplifier chip of model 8205.
7. A Type-C conversion connector, characterized in that: It comprises a first shell (1) with a hollow interior, a second shell (2) and the Type-C connector conversion circuit as described in any one of claims 1 to 6, wherein the first shell (1) is provided with the decoy adapter voltage circuit, and the second shell (2) is provided with the boost charging circuit, and the Type-C female socket J1 of the decoy adapter voltage circuit is embedded on the side wall of the first shell (1), and the connector J3 and the connector J4 of the boost charging circuit are respectively provided on opposite sides of the second shell (2), and the connector J3 is electrically connected to the Type-C female socket J1 through a cable, and the connector J4 is plugged into the charging plug of the rechargeable battery.