A charging plug supporting single-c-port fast charging protocol
By using a charging plug that supports the single USB-C fast charging protocol, and incorporating a built-in intelligent identification module and optimized circuit design, the problems of low charging efficiency and poor compatibility have been solved, achieving an efficient, safe, and portable charging solution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI MIJU TECH CO LTD
- Filing Date
- 2025-06-14
- Publication Date
- 2026-05-22
AI Technical Summary
Existing charging plugs lack support for multiple fast charging protocols, resulting in low charging efficiency, poor compatibility, and a complex and bulky design that makes them inconvenient to carry.
Design a charging plug that supports single-port C fast charging protocol, with built-in main control circuit and protocol circuit, including PD protocol fast charging identification module, synchronous rectification and filtering module and RCD absorption module, which can intelligently identify device requirements, automatically adjust voltage and current, and optimize module connection to reduce electromagnetic interference.
It improves charging efficiency and compatibility, optimizes plug size for easy portability, and ensures safety and stability during the charging process.
Smart Images
Figure CN224267023U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of charging head technology, specifically to a charging plug that supports a single USB-C port fast charging protocol. Background Technology
[0002] With the widespread use of smartphones, tablets, and other portable electronic devices, fast charging technology has gradually become a focus of user attention. Existing charging plug technologies mainly use traditional charging protocols, which, while meeting basic charging needs, still have shortcomings in terms of charging efficiency, compatibility, and safety.
[0003] Existing charging plugs typically lack support for multiple fast charging protocols, resulting in inefficient charging performance when using different brands or models of devices. Furthermore, traditional charging plugs offer limited current and voltage regulation, making it difficult to adapt to the charging needs of various devices, leading to slow or unstable charging speeds. Additionally, existing plugs often have complex circuit designs, resulting in bulky designs that are inconvenient to carry and use.
[0004] Therefore, there is an urgent need for a new type of charging plug that can support the single USB-C fast charging protocol, has higher charging efficiency and better compatibility, and is simpler and more portable in design. Summary of the Invention
[0005] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a charging plug that supports the single C port fast charging protocol, which not only improves charging efficiency and compatibility, but also performs well in terms of safety and portability, and has broad market application prospects.
[0006] This utility model is achieved through the following technical solution:
[0007] A charging plug supporting a single Type-C port fast charging protocol includes a housing, a Type-C interface disposed at one end of the housing, a contact plug rotatably disposed at the other end of the housing, and a control board disposed inside the housing, wherein the control board is provided with a main control circuit and a protocol circuit.
[0008] The main control circuit includes an input module, a filtering and rectification module, a startup module, a VCC power supply module, a main control and adjustment module, an RCD absorption module, a high-frequency transformer module, and a synchronous rectification and filtering module. The contact plug is electrically connected to the input terminal of the input module. The output terminal of the input module is electrically connected to the input terminal of the filtering and rectification module. The output terminal of the filtering and rectification module is electrically connected to the input terminal of the startup module and the first input terminal of the RCD absorption module. The output terminal of the startup module is electrically connected to the input terminal of the VCC power supply module. The output terminal of the VCC power supply module is electrically connected to the input terminal of the main control and adjustment module. The output terminal of the main control and adjustment module is electrically connected to the second input terminal of the RCD absorption module. The output terminal of the RCD absorption module is electrically connected to the input terminal of the high-frequency transformer module. The output terminal of the high-frequency transformer module is electrically connected to the input terminal of the output synchronous rectification and filtering module.
[0009] The protocol circuit includes a PD protocol fast charging identification module. The output terminal of the synchronous rectification and filtering module is electrically connected to the input terminal of the PD protocol fast charging identification module, and the output terminal of the PD protocol fast charging identification module is electrically connected to the TYPC-C interface.
[0010] The main control and adjustment module includes a chip U4 with the model number MK2697A.
[0011] The synchronous rectification and filtering module includes a chip U1 with the model number MK1206.
[0012] The PD protocol fast charging identification module includes a chip U3 of model HY5311 and a field-effect transistor Q1 of model YC15N03ADL.
[0013] The protocol circuit also includes a voltage regulation feedback module, which is electrically connected between the output of the synchronous rectification and filtering module and the input of the PD protocol fast charging identification module.
[0014] The main control circuit also includes an EMI module, which is connected between the output of the input module and the input of the filter and rectifier module.
[0015] The beneficial effects of this utility model are:
[0016] This utility model features a charging plug supporting a single USB-C port fast charging protocol. Through its built-in PD protocol fast charging identification module, it can intelligently identify the charging needs of connected devices and automatically adjust the output voltage and current. This not only improves charging efficiency but also enhances plug compatibility, enabling it to adapt to various devices and meet diverse user needs. Secondly, the control board is rationally designed with clear electrical connections between modules, ensuring stable signal transmission and efficient processing. This optimizes the plug's size, making it easy to carry and meeting modern users' requirements for portability and practicality. Finally, the plug's built-in RCD absorption module and synchronous rectification filter module effectively reduce current fluctuations and electromagnetic interference, ensuring safety and stability during charging. Attached Figure Description
[0017] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0019] Figure 2 This is the circuit schematic of the control board.
[0020] Figure Labels
[0021] Housing -- 100, TYPC-C interface -- 101, contact plug -- 102. Detailed Implementation
[0022] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0023] like Figure 1 As shown, this embodiment discloses a charging plug that supports a single Type-C port fast charging protocol, which includes a housing 100, a Type-C interface 101 disposed at one end of the housing 100, a contact plug 102 rotatably disposed at the other end of the housing 100, and a control board disposed inside the housing 100. The control board is provided with a main control circuit and a protocol circuit.
[0024] The control board of the charging plug in this embodiment is equipped with a main control circuit and a protocol circuit. The circuit diagrams of the main control circuit and the protocol circuit are shown below. Figure 2 As shown, the main control circuit includes an input module, a filtering and rectification module, a startup module, a VCC power supply module, a main control and adjustment module, an RCD absorption module, a high-frequency transformer module, and a synchronous rectification and filtering module. The contact plug 102 is electrically connected to the input terminal of the input module. The output terminal of the input module is electrically connected to the input terminal of the filtering and rectification module. The output terminal of the filtering and rectification module is electrically connected to the input terminal of the startup module and the first input terminal of the RCD absorption module, respectively. The output terminal of the startup module is electrically connected to the input terminal of the VCC power supply module. The output terminal is electrically connected to the input terminal of the main control and adjustment module. The output terminal of the main control and adjustment module is electrically connected to the second input terminal of the RCD absorption module. The output terminal of the RCD absorption module is electrically connected to the input terminal of the high-frequency transformer module. The output terminal of the high-frequency transformer module is electrically connected to the input terminal of the output synchronous rectification and filtering module. The protocol circuit includes a PD protocol fast charging identification module. The output terminal of the synchronous rectification and filtering module is electrically connected to the input terminal of the PD protocol fast charging identification module. The output terminal of the PD protocol fast charging identification module is electrically connected to the TYPC-C interface 101.
[0025] Specifically, the main control and adjustment module includes a chip U4 with the model number MK2697A.
[0026] Specifically, the synchronous rectification and filtering module includes a chip U1 with the model number MK1206.
[0027] Specifically, the PD protocol fast charging identification module includes a chip U3 with model number HY5311 and a field-effect transistor Q1 with model number YC15N03ADL.
[0028] Specifically, the protocol circuit also includes a voltage regulation feedback module, which is electrically connected between the output of the synchronous rectification and filtering module and the input of the PD protocol fast charging identification module.
[0029] Specifically, the main control circuit also includes an EMI module, which is connected between the output of the input module and the input of the filter and rectifier module.
[0030] In summary, the charging plug supporting the single USB-C fast charging protocol in this embodiment, through its built-in PD protocol fast charging identification module, can intelligently identify the charging needs of the connected device and automatically adjust the output voltage and current. This not only improves charging efficiency but also enhances the plug's compatibility, enabling it to adapt to various devices and meet diverse user needs. Secondly, the control board is rationally designed, with clear electrical connections between modules, ensuring stable signal transmission and efficient processing. This optimizes the charging plug's size, making it easy to carry and meeting modern users' requirements for portability and practicality. Finally, the plug's built-in RCD absorption module and synchronous rectification and filtering module effectively reduce current fluctuations and electromagnetic interference, ensuring safety and stability during the charging process.
[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. A charging plug supporting a single Type-C port fast charging protocol, comprising a housing, a Type-C interface disposed at one end of the housing, a contact plug rotatably disposed at the other end of the housing, and a control board disposed within the housing, characterized in that: The control board is equipped with a main control circuit and a protocol circuit; The main control circuit includes an input module, a filtering and rectification module, a startup module, a VCC power supply module, a main control and adjustment module, an RCD absorption module, a high-frequency transformer module, and a synchronous rectification and filtering module. The contact plug is electrically connected to the input terminal of the input module. The output terminal of the input module is electrically connected to the input terminal of the filtering and rectification module. The output terminal of the filtering and rectification module is electrically connected to the input terminal of the startup module and the first input terminal of the RCD absorption module. The output terminal of the startup module is electrically connected to the input terminal of the VCC power supply module. The output terminal of the VCC power supply module is electrically connected to the input terminal of the main control and adjustment module. The output terminal of the main control and adjustment module is electrically connected to the second input terminal of the RCD absorption module. The output terminal of the RCD absorption module is electrically connected to the input terminal of the high-frequency transformer module. The output terminal of the high-frequency transformer module is electrically connected to the input terminal of the output synchronous rectification and filtering module. The protocol circuit includes a PD protocol fast charging identification module. The output terminal of the synchronous rectification and filtering module is electrically connected to the input terminal of the PD protocol fast charging identification module, and the output terminal of the PD protocol fast charging identification module is electrically connected to the TYPC-C interface.
2. A charging plug supporting a single USB-C port fast charging protocol according to claim 1, characterized in that: The main control and adjustment module includes a chip U4 with the model number MK2697A.
3. A charging plug supporting a single USB-C port fast charging protocol according to claim 1, characterized in that: The synchronous rectification and filtering module includes a chip U1 with the model number MK1206.
4. A charging plug supporting a single USB-C port fast charging protocol according to claim 1, characterized in that: The PD protocol fast charging identification module includes a chip U3 of model HY5311 and a field-effect transistor Q1 of model YC15N03ADL.
5. A charging plug supporting a single USB-C port fast charging protocol according to claim 1, characterized in that: The protocol circuit also includes a voltage regulation feedback module, which is electrically connected between the output of the synchronous rectification and filtering module and the input of the PD protocol fast charging identification module.
6. A charging plug supporting a single USB-C port fast charging protocol according to claim 1, characterized in that: The main control circuit also includes an EMI module, which is connected between the output of the input module and the input of the filter and rectifier module.