CN216489792U

CN216489792U - Multi-protocol quick-charging dual-interface charging circuit supporting PD

Info

Publication number: CN216489792U
Application number: CN202121690321.0U
Authority: CN
Inventors: 周奇伟
Original assignee: Shenzhen Keyi Design Services Co ltd
Current assignee: Yiwang Security Technology Jilin Province Co ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2022-05-10
Anticipated expiration: 2031-07-23

Abstract

The utility model discloses a support many fast protocol double port of filling circuit of PD, including charging input interface circuit, SW3518 high integrated level fast protocol chip circuit, Type-C mouth ID authentication and internal power supply LED indicating circuit, charging chip temperature detection circuit, output charging power supply adjustment circuit, Type-C and Type-A interface output control circuit, Type-C and Type-A interface circuit; this circuit can be suitable for the Type-C and the Type-A interface facility of common adoption on the market, and the multiprotocol connection terminal carries out quick charge, has solved the charger before and can only match a terminal to use and charge slow problem, advantages such as interface uniformity and commonality, multiprotocol application terminal have good application prospect and market effect.

Description

Multi-protocol quick-charging dual-interface charging circuit supporting PD

Technical Field

The utility model relates to a high-efficiency quick-charging circuit for charging in the field of digital electric appliances such as mobile phones and notebook computers, in particular to a multi-protocol quick-charging double-interface charging circuit supporting PD.

Background

Most of the digital electric appliances in the market at present adopt lithium ion batteries to supply power for portable facilities, such as a charger, a mobile phone, a notebook computer and other mobile and handheld facilities.

Since the smart phone enters a large screen era, endurance becomes one of the more concerned aspects of users. Under the condition that the current battery production technology has breakthrough change, mobile phone manufacturers select large-capacity batteries, precise power management schemes and provide means such as quick charging and the like to prolong the cruising ability of mobile phones. No matter from the aspect of mobile phone design or the aspect of practicality, the quick charging technology has undoubtedly more advantages than the former two means, not only simply solves the problem of continuation of the journey crudely, but also more approaches to the increasingly fast rhythm of life of people at present, and has more practicability.

The application of the high-capacity rechargeable battery and the quick charger which can double the charging current enables the mobile equipment to have more convenience and mobility, so that the former low-capacity slow charging facility is revolutionarily changed, and a new charging mode is certainly developed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problem of slow charging in the prior art, the utility model provides a multi-protocol quick-charging dual-interface charging circuit supporting a PD, wherein a power supply is 6-28VDC and has a power supply input of more than 4A. The main control chip contains the Type-C that multiple charging protocol can be arbitrary and the Type-A interface is mutual to charge.

The power input by the DC1 power interface supplies power to the circuit through the 4A fuse and the D2 transient voltage suppression diode.

The power supply of the DC1 power interface provides power for a pin 19 of a main control chip, a Q1 field-effect tube and a Q2 field-effect tube through C4, C5 and C1 capacitor filtering, meanwhile, the Q1 and Q2 field-effect tubes are adjusted by charging parameters of the main control chip, the charging voltage is output by a VOUT network node, C3, C2, R1, R3 and R2 provide temperature detection circuits, an LED2 indicates that a lamp is connected with ID authentication of equipment for a Type-C port, and an LED1 is a working power supply indicator lamp.

The output charging voltage of the VOUT network node is filtered by an L1 inductor and a capacitor, and then is fed back to the main control chip for charging current collection through R7 and R8, the Q3 and the Q4 are controlled by the main control chip to be charged and output and not output, the USB2 is a TYPE-C interface, and the J1 is a TYPE-A interface to charge the user facility.

Advantageous effects

Main control chip includes the Type-C that multiple charging protocol can be arbitrary and the Type-A interface is mutual charges, unified standardized interface, high-efficient quick charging.

Drawings

FIG. 1 is an external power supply interface;

FIG. 2 is a circuit of a main control chip;

FIG. 3 is a charging output circuit;

fig. 4 is a circuit configuration diagram.

Detailed Description

To facilitate an understanding of the inventive circuit, the inventive circuit is described in more detail below with reference to the figures and the specific embodiments. Preferred embodiments of the present circuit are shown in the drawings, but the present invention may be embodied in many different forms and is not limited to the embodiments described in the specification. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Principle of operation

The main control chip of the circuit comprises a plurality of charging protocols, the TYPE-C and TYPE-A interfaces identify battery information to the main control chip to adjust the charging state, such as how much current to charge, and the charging current is analyzed by feeding back the resistance connected in series in the charging circuit to the main control chip to perform closed-loop control.

The implementation mode is as follows:

as shown in fig. 1, the power input from the DC1 power interface supplies power to the circuit through the 4A fuse and the D2 tvs.

As shown in fig. 2, power supplied by the DC1 power interface is filtered by capacitors C4, C5 and C1 to provide power to the pin 19 of the main control chip, the field-effect transistors Q1 and Q2, the field-effect transistors Q1 and Q2 perform charging parameter adjustment by the main control chip to output charging voltage at the node of the VOUT network, the capacitors C3, C2, R1, R3 and R2 provide temperature detection circuits, the LED2 indicates that there is a light for ID authentication of the Type-C port connection device, and the LED1 is a working power indicator light.

As shown in fig. 3, the charging voltage output by the VOUT network node is filtered by the L1 inductor and capacitor, and then fed back to the main control chip via R7 and R8 for charging current collection. The Q3 and the Q4 are controlled by the main control chip to carry out charging output and non-output, the USB2 is a TYPE-C interface, and the J1 is a TYPE-A interface to charge the user facility.

Claims

1. The utility model provides a support multi-protocol of PD and fill double-interface charging circuit soon, a serial communication port, can input wide power 6-28VDC including DC1 power interface, SW3518 high integration fills agreement master control chip soon, Type-C mouth ID authentication LED indicating circuit, internal power LED indicating circuit, charging chip temperature detection circuit, output charging power adjustment circuit, Type-C and Type-A interface output control circuit, Type-C and Type-A interface circuit, external power supplies voltage supply main control chip through DC1 power interface, the master control chip is a high integrated processing ability chip, through peripheral circuit such as temperature, work instruction, and interface circuit, adapt to arbitrary Type-C and Type-A interface multi-protocol with it communicate alternately and charge.

2. The multi-protocol fast-charging dual-interface charging circuit supporting PD according to claim 1, wherein the power input from the DC1 power interface supplies power to the circuit through a 4A fuse and a D2 transient voltage suppressor diode.

3. The multi-protocol quick-charging dual-interface charging circuit supporting the PD according to claim 2, wherein power supplied by the DC1 power interface is filtered by capacitors C4, C5 and C1 to provide power to a pin 19 of the main control chip, and field effect transistors Q1 and Q2, and meanwhile, the field effect transistors Q1 and Q2 perform charging parameter adjustment by the main control chip to output charging voltage at a node of the VOUT network, and the capacitors C3, C2, R1, R3 and R2 provide temperature detection circuits, the LED2 indicates that there is a lamp for ID authentication of Type-C interface connection equipment, and the LED1 is a working power indicator lamp.

4. The multi-protocol quick-charging dual-interface charging circuit supporting the PD, characterized in that the charging voltage output by the VOUT network node is filtered by an L1 inductor and a capacitor, and then fed back to a main control chip for charging current collection through R7 and R8, the Q3 and the Q4 are controlled by the main control chip to output and not output, the USB2 is a TYPE-C interface, and the J1 is a TYPE-A interface to charge a user facility.