CN115833317A

CN115833317A - Control circuit and control method applied to multifunctional charging equipment and charging equipment

Info

Publication number: CN115833317A
Application number: CN202211555956.9A
Authority: CN
Inventors: 李科翔
Original assignee: Shenzhen Jinxiang Technology Co ltd
Current assignee: Shenzhen Jinxiang Technology Co ltd
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-03-21
Anticipated expiration: 2042-12-06
Also published as: CN115833317B

Abstract

The invention discloses a control circuit, a control method and a charging device applied to a multifunctional charging device, wherein a signal induction circuit and a data conversion control circuit are arranged for the multifunctional charging device, a signal corresponding to an intelligent device connected with the signal induction circuit and sent from the signal induction circuit is analyzed through the data conversion control circuit to obtain the type of the intelligent device, and then the data of the intelligent device is accurately transmitted to a data output device to be output according to the type of the intelligent device, such as: the display is throwing screen equipment, and/or, carries out accurate charging to smart machine, has richened charging device's intelligent function to and simplified charging device's structure, thereby be convenient for charging device's equipment, carry and reduce cost.

Description

Control circuit and control method applied to multifunctional charging equipment and charging equipment

Technical Field

The invention relates to the technical field of charging, in particular to a control circuit and a control method applied to multifunctional charging equipment and the charging equipment.

Background

Along with the more mature of internet of things technology, intelligent equipment is more and more intelligent, if: the screen projection device can project and output audio/video, pictures and other data of the intelligent device to the screen projection device so as to entertain the life of a user or facilitate work and improve the working efficiency of the user.

At present, when a screen needs to be projected, data is generally projected to a large screen projecting device or a small screen projecting device, but the large screen projecting device is heavy in size and not easy to carry, and although the small screen projecting device is convenient to carry, the function is single and an external power supply is needed. Therefore, a screen projection module is added to the charging equipment, so that the equipment is multipurpose.

However, practice shows that the charging equipment carrying the screen projection function at present not only has a complex structure and a plurality of parts, is not beneficial to assembly, but also has a large volume and is inconvenient to carry. Therefore, it is important to provide a technical solution that can simplify the structure while implementing the screen projection function, thereby facilitating the assembly and carrying of the charging device.

Invention data

The technical problem to be solved by the present invention is to provide a control circuit applied to a multifunctional charging device, which can realize screen projection and charging functions and simplify the structure, thereby facilitating the assembly and carrying of the charging device and reducing the cost.

In order to solve the above technical problem, a first aspect of the present invention discloses a control circuit applied to a multifunctional charging device, where the control circuit includes a signal sensing circuit and a data conversion control circuit, where:

the first communication end of the signal induction circuit is electrically connected with the communication end of the data conversion control circuit, and the first data end of the data conversion control circuit is electrically connected with the data end of the signal induction circuit; the second data end of the data conversion control circuit is electrically connected with data output equipment;

the second communication end of the signal induction circuit is used for being electrically connected with intelligent equipment, and the voltage input end of the signal induction circuit and the voltage input end of the data conversion control circuit are both used for being electrically connected with a power supply circuit;

the signal induction circuit is used for sending a signal corresponding to the intelligent equipment to the data conversion control circuit when the intelligent equipment is detected to be accessed;

the data conversion control circuit is used for determining the type of the intelligent equipment according to the received signal sent by the signal induction circuit and executing operation matched with the type of the intelligent equipment;

when the type of the intelligent device is used for indicating that the intelligent device supports data transmission, the operation matched with the type of the intelligent device comprises converting the data of the signal sensing circuit, transmitting the converted data to the data output device, and/or controlling the signal sensing circuit to charge the intelligent device;

when the type of the intelligent device is used for indicating that the intelligent device does not support data transmission, the operation matched with the type of the intelligent device comprises controlling the signal induction circuit to charge the intelligent device.

As an optional implementation manner, in the first aspect of the present invention, the data conversion control circuit includes a data conversion control module, a protocol module, and a data transmission module, where:

the communication end of the data conversion control module is respectively and electrically connected with the first communication end of the signal induction circuit and the communication end of the protocol module;

a first data end of the data conversion control module is electrically connected with a data end of the signal sensing circuit, a second data end of the data conversion control module is electrically connected with a first data end of the data transmission module, and a second data end of the data transmission module is used for being electrically connected with the data output equipment;

the voltage feedback end of the protocol module, the voltage input end of the data conversion control module and the voltage output end of the data transmission module are all used for being electrically connected with the power supply circuit;

the data conversion control module is used for converting the data of the signal sensing circuit and controlling the data transmission module to transmit the converted data to the data output device when the type of the intelligent device is used for indicating that the intelligent device supports data transmission, and/or controlling the protocol module to feed back the voltage required by the intelligent device to the power supply circuit so as to trigger the power supply circuit to output the voltage required by the intelligent device and charge the intelligent device through the signal sensing circuit; or, the protocol module is controlled to feed back the voltage required by the intelligent device to the power supply circuit to trigger the power supply circuit to output the voltage required by the intelligent device when the type of the intelligent device indicates that the intelligent device does not support data transmission, and the intelligent device is charged through the signal induction circuit.

As an optional implementation manner, in the first aspect of the present invention, the control circuit further includes the power supply circuit, and the power supply circuit includes an ac-dc conversion module and a power supply module, where:

the voltage output end of the alternating current-direct current conversion module is electrically connected with the voltage input end of the power supply module, and the voltage input end of the alternating current-direct current conversion module is used for being electrically connected with an external power supply;

a first voltage output end of the power supply module is electrically connected with a voltage input end of the signal induction circuit, and a second voltage output end of the power supply module is electrically connected with a voltage input end of the data conversion control circuit;

the alternating current-direct current conversion module is used for converting alternating current voltage of the external power supply into direct current voltage;

and the power supply module is used for converting the direct-current voltage and providing the converted direct-current voltage for the signal induction circuit and the data conversion control circuit.

As an optional implementation manner, in the first aspect of the present invention, the power supply module includes a switch module, a first power supply module, and a second power supply module, wherein:

the first end of the switch module is electrically connected with the voltage output end of the alternating current-direct current conversion module, the second end of the switch module is electrically connected with the voltage input end of the first power supply sub-module, and the third end of the switch module is electrically connected with the voltage input end of the signal induction circuit;

the voltage output end of the first power supply sub-module is electrically connected with the voltage input end of the second power supply sub-module and is electrically connected with the first voltage input end of the data conversion control circuit;

the voltage output end of the second power supply module is electrically connected with the second voltage input end of the data conversion control circuit;

the switch module is used for controlling the switch-off or switch-on of the AC/DC conversion module according to the power supply requirements of other modules;

the first power supply module is used for converting the direct-current voltage when the switch module is conducted with the alternating-current/direct-current conversion module and providing the converted direct-current voltage for the data conversion control circuit and the second power supply module;

and the second power supply module is used for reducing the converted direct-current voltage and providing the reduced direct-current voltage for the data conversion control circuit.

As an alternative implementation, in the first aspect of the present invention, the second power supply module includes a first voltage conversion unit and a second voltage conversion unit, wherein:

the voltage input end of the first voltage conversion unit and the voltage input end of the second voltage conversion unit are electrically connected with the first voltage output end of the first power supply module;

the voltage output end of the first voltage conversion unit is electrically connected with the first sub-voltage input end of the data conversion control circuit, and the voltage output end of the second voltage conversion unit is electrically connected with the second sub-voltage input end of the data conversion control circuit;

the first voltage conversion unit is configured to step down the dc voltage converted by the first power supply module to obtain a stepped-down first dc voltage, and provide the first dc voltage to the data conversion control circuit;

the second voltage conversion unit is configured to step down the dc voltage converted by the first power supply module to obtain a stepped-down second dc voltage, and provide the second dc voltage to the data conversion control circuit;

wherein the first DC voltage and the second DC voltage are not equal.

As an optional implementation manner, in the first aspect of the present invention, the first voltage converting unit includes a first converting chip U4, an inductor L1, a capacitor C5, a capacitor C18, a capacitor C19, a resistor R10, a resistor R12, and a filter capacitor, where:

a voltage input end of the first conversion chip U4 and one end of the capacitor C18 are electrically connected to a voltage output end of the voltage reduction unit, a switch end of the first conversion chip U4 is electrically connected to one end of the inductor L1, and a feedback end of the first conversion chip U4 is electrically connected to one end of the capacitor C5, one end of the resistor R10, and one end of the resistor R12, respectively; one end of the capacitor C19, the other end of the capacitor C5, the other end of the resistor R10, the other end of the inductor L1, and the filter capacitor are electrically connected to a first sub-voltage input end of the data conversion control circuit.

As an optional implementation manner, in the first aspect of the present invention, the second voltage converting unit includes a second converting chip U11, a capacitor C33, and a capacitor C35, where:

the voltage input end of the second conversion chip U11 and one end of the capacitor C33 are electrically connected with the voltage output end of the voltage reduction unit;

the voltage output end of the second conversion chip U11 and the capacitor C35 are electrically connected to the second sub-voltage input end of the data conversion control circuit.

As an alternative implementation, in the first aspect of the present invention, the first power supply module includes a voltage reduction unit, wherein:

the voltage input end of the voltage reduction unit is electrically connected with the second end of the switch module;

the voltage output end of the voltage reduction unit is electrically connected with the voltage input end of the second power supply sub-module and the first voltage input end of the data conversion control circuit;

the voltage reduction unit is used for reducing the direct-current voltage converted by the alternating-current and direct-current conversion module and providing the reduced direct-current voltage to the second power supply module and the data conversion control circuit;

the first power supply module further comprises a voltage boosting unit, the voltage boosting unit is arranged between the switch module and the voltage reducing unit, wherein:

the voltage boosting unit is used for boosting the direct-current voltage converted by the alternating-current and direct-current conversion module to obtain the boosted direct-current voltage, and transmitting the boosted direct-current voltage to the voltage reducing unit.

As an optional implementation manner, in the first aspect of the present invention, the voltage dropping unit includes a voltage dropping chip U12, a capacitor C56, an inductor L4, a resistor R42, a resistor R43, a resistor R45, a capacitor C58, a capacitor C59, and a capacitor C66, where:

the voltage input end of the voltage reduction chip U12, one end of the resistor R42 and one end of the capacitor C66 are electrically connected with the voltage output end of the voltage boosting unit, and the other end of the resistor R42 is electrically connected with the enabling end of the voltage reduction chip U12;

the switch end of the voltage reduction chip U12 is electrically connected to one end of the capacitor C56 and one end of the inductor L4, respectively, and the other end of the inductor L4 is electrically connected to one end of the resistor R43, one end of the capacitor C58, one end of the capacitor C59, and the voltage input end of the data conversion circuit; the voltage bootstrap end of the voltage reduction chip U12 is electrically connected with the other end of the capacitor C56;

the feedback end of the voltage reduction chip U12 is electrically connected to the other end of the resistor R43, the other end of the capacitor C58, and one end of the resistor R45.

As an optional implementation manner, in the first aspect of the present invention, the voltage boost unit includes a boost chip U8, a voltage regulator tube D3, an inductor L3, a resistor R36, a resistor R38, and a resistor R39, where:

a voltage input end/a free end of the boost chip U8, one end of the inductor L3 and one end of the resistor R36 are electrically connected with a second end of the switch module, and the other end of the resistor R36 is electrically connected with an enable end of the boost chip U8;

the switch end of the boosting chip U8 is electrically connected with the other end of the inductor L3 and the anode of the voltage-stabilizing tube D3, and the cathode of the voltage-stabilizing tube D3 is electrically connected with one end of the resistor R38 and the voltage input end of the voltage-reducing unit;

the feedback end of the boosting chip U8 is electrically connected to the other end of the resistor R38 and one end of the resistor R39.

As an optional implementation manner, in the first aspect of the present invention, the switch module includes a MOS transistor Q3, a MOS transistor Q4, a MOS transistor Q5, a MOS transistor Q6, a resistor R28, a resistor R29, a resistor R30, a resistor R31, a resistor R32, a resistor R33, a resistor R34, a resistor R35, a capacitor C42, and a capacitor C43, where:

the gate of the MOS transistor Q3 is electrically connected to the resistor R34, the drain of the MOS transistor Q3 is electrically connected to one end of the resistor R32, and the other end of the resistor R32 is electrically connected to one end of the resistor R29, one end of the capacitor C42, and the gate of the MOS transistor Q6;

the other end of the resistor R29, the other end of the capacitor C42, the source electrode of the MOS transistor Q6, one end of the resistor R30, one end of the capacitor C43 and the source electrode of the MOS transistor Q5 are electrically connected with the voltage input end of the first power supply sub-module;

the drain of the MOS transistor Q6 is electrically connected to the voltage input terminal of the signal sensing circuit and the resistor R28, the drain of the MOS transistor Q4 is electrically connected to one end of the resistor R33, and the other end of the resistor R33 is electrically connected to the other end of the resistor R30, the other end of the capacitor C43, and the gate of the MOS transistor Q5; the gate of the MOS transistor Q4 is electrically connected to the resistor R34.

As an optional implementation manner, in the first aspect of the present invention, the protocol module includes a protocol chip U4, an optical coupler U2A, and a resistor R15, where:

the communication end of the protocol chip U4 is electrically connected with the communication end of the data conversion control module, and the resistor R15 is connected with the optocoupler U2A in parallel;

the protocol chip U4 is electrically connected with the power supply circuit through the resistor R15.

As an optional implementation manner, in the first aspect of the present invention, the ac-dc conversion module includes an ac unit, a rectifying unit, and a control unit, wherein:

the voltage input end of the alternating current unit is electrically connected with the external power supply, and the voltage output end of the alternating current unit is electrically connected with the voltage output end of the rectification unit;

the controlled end of the alternating current unit is electrically connected with the control end of the control unit, and the voltage output end of the rectification unit is electrically connected with the voltage input end of the power supply module;

the control unit is used for controlling the branch where the alternating current unit is located to be switched on or switched off;

the alternating current unit is used for transmitting alternating current voltage of the external power supply to the rectifying unit when the external power supply is conducted;

and the rectifying unit is used for converting the received alternating-current voltage into direct-current voltage and providing the direct-current voltage for the power supply module.

A second aspect of the present invention discloses a multifunctional charging device, which includes a device body, and ports disposed on the device body, where the ports include a USB port, a PD port, and an HDIM port, and the multifunctional charging device further includes any one of the control circuits applied to the multifunctional charging device in the first aspect.

The third aspect of the invention discloses a control method applied to multifunctional charging equipment, wherein the method is applied to a control circuit, the control circuit comprises a signal sensing circuit and a data conversion control circuit, a first communication end of the signal sensing circuit is electrically connected with a communication end of the data conversion control circuit, and a first data end of the data conversion control circuit is electrically connected with a data end of the signal sensing circuit; the second data end of the data conversion control circuit is electrically connected with data output equipment; the second communication end of the signal induction circuit is used for being electrically connected with intelligent equipment, and the voltage input end of the signal induction circuit and the voltage input end of the data conversion control circuit are both used for being electrically connected with a power supply circuit; the method comprises the following steps:

when the intelligent equipment is detected to be accessed, the signal induction circuit sends a signal corresponding to the intelligent equipment to the data conversion control circuit;

the data conversion control circuit receives the signal sent by the signal induction circuit, determines the type of the intelligent equipment according to the received signal sent by the signal induction circuit, and executes operation matched with the type of the intelligent equipment;

The implementation of the invention has the following beneficial effects:

the invention provides a control circuit applied to multifunctional charging equipment, which comprises a signal sensing circuit and a data conversion control circuit, wherein a first communication end of the signal sensing circuit is electrically connected with a communication end of the data conversion control circuit, and a first data end of the data conversion control circuit is electrically connected with a data end of the signal sensing circuit; the second data end of the data conversion control circuit is electrically connected with the data output equipment; the second communication end of the signal induction circuit is used for being electrically connected with the intelligent equipment, and the voltage input end of the signal induction circuit and the voltage input end of the data conversion control circuit are both used for being electrically connected with the power supply circuit; the signal induction circuit is used for sending a signal corresponding to the intelligent equipment to the data conversion control circuit when the intelligent equipment is detected to be accessed; the data conversion control circuit is used for determining the type of the intelligent equipment according to the received signal sent by the signal induction circuit and executing operation matched with the type of the intelligent equipment; when the type of the intelligent equipment is used for indicating that the intelligent equipment supports data transmission, the operation matched with the type of the intelligent equipment comprises the steps of converting the data of the signal sensing circuit, transmitting the converted data to the data output equipment and/or controlling the signal sensing circuit to charge the intelligent equipment; when the type of the smart device is used for indicating that the smart device does not support data transmission, the operation matched with the type of the smart device comprises controlling the signal induction circuit to charge the smart device. Therefore, the invention sets the signal sensing circuit and the data conversion control circuit for the multifunctional charging equipment, analyzes the signal corresponding to the intelligent equipment connected with the signal sensing circuit and sent from the signal sensing circuit through the data conversion control circuit to obtain the type of the intelligent equipment, and then accurately transmits the data of the intelligent equipment to the data output equipment for output according to the type of the intelligent equipment, such as: the display is throwing the screen equipment, and/or, carries out accurate charging to smart machine, has richened charging device's intelligent function to and simplified charging device's structure, thereby be convenient for charging device's equipment, carry and reduce cost.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a control circuit applied to a multifunctional charging device according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a data conversion control module according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a data transmission module according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a signal sensing circuit according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a protocol module according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a first voltage converting unit according to an embodiment of the disclosure;

fig. 7 is a schematic structural diagram of a second voltage converting unit according to an embodiment of the disclosure;

FIG. 8 is a schematic structural diagram of a voltage reduction unit according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a boosting unit according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a switch module according to an embodiment of the disclosure;

fig. 11 is a schematic structural diagram of an ac-dc conversion module according to an embodiment of the present invention;

fig. 12 is a schematic flowchart of a control method applied to a multifunctional charging device according to an embodiment of the disclosure;

fig. 13 is a schematic structural diagram of a multifunctional charging device according to an embodiment of the present invention.

Detailed Description

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, unless explicitly stated or limited otherwise, the term "electrically connected" in the description and claims of the present invention and the above drawings is to be understood broadly, and may be, for example, a fixed electrical connection, a detachable electrical connection, or an integral electrical connection; can be mechanically and electrically connected, can be electrically connected or can be communicated with each other; either directly or indirectly through intervening media, either internally or in any other relationship. Furthermore, the terms "first," "second," and the like in the description and claims of the present invention and in the foregoing drawings are used for distinguishing between different elements and not necessarily for describing a particular sequential order, and the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusions. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Example one

Referring to fig. 1, fig. 1 is a schematic structural diagram of a control circuit applied to a multifunctional charging device according to an embodiment of the present invention. As shown in fig. 1, the control circuit applied to the multifunctional charging device includes a signal sensing circuit and a data conversion control circuit, wherein:

the first communication end of the signal induction circuit is electrically connected with the communication end of the data conversion control circuit, and the first data end of the data conversion control circuit is electrically connected with the data end of the signal induction circuit; the second data end of the data conversion control circuit is used for electrically connecting data output equipment; the second communication end of the signal induction circuit is used for being electrically connected with the intelligent equipment, and the voltage input end of the signal induction circuit and the voltage input end of the data conversion control circuit are both used for being electrically connected with the power supply circuit.

In the embodiment of the invention, the signal sensing circuit is used for sending a signal corresponding to the intelligent equipment to the data conversion control circuit when the intelligent equipment is detected to be accessed; the data conversion control circuit is used for determining the type of the intelligent equipment according to the received signal sent by the signal induction circuit and executing operation matched with the type of the intelligent equipment;

in the embodiment of the invention, when the type of the intelligent device is used for indicating that the intelligent device supports data transmission, the operation matched with the type of the intelligent device comprises the steps of converting the data of the signal sensing circuit, transmitting the converted data to the data output device, and/or controlling the signal sensing circuit to charge the intelligent device; when the type of the smart device is used to indicate that the smart device does not support data transmission, the operation matched with the type of the smart device includes controlling the signal sensing circuit to charge the smart device.

In the embodiment of the present invention, optionally, the intelligent device includes any device that needs to be charged and/or transmit data, such as a mobile phone and a computer; the data output device can comprise audio and video and picture screen projection devices, and can also be a device only outputting sound.

It can be seen that, implementing the control circuit applied to the multifunctional charging device described in fig. 1, by setting a signal sensing circuit and a data conversion control circuit for the multifunctional charging device, and analyzing a signal corresponding to the smart device accessing the signal sensing circuit sent from the signal sensing circuit through the data conversion control circuit, the type of the smart device is obtained, and then, according to the type of the smart device, the data of the smart device is accurately transmitted to the data output device for output, as follows: the display is throwing the screen equipment, and/or, carries out accurate charging to smart machine, has richened charging device's intelligent function to and simplified charging device's structure, thereby be convenient for charging device's equipment, carry and reduce cost.

In this embodiment of the present invention, optionally, the data conversion control circuit includes a data conversion control module, a protocol module, and a data transmission module, wherein:

the communication end of the data conversion control module is respectively and electrically connected with the first communication end of the signal sensing circuit and the communication end of the protocol module; a first data end of the data conversion control module is electrically connected with a data end of the signal sensing circuit, a second data end of the data conversion control module is electrically connected with a first data end of the data transmission module, and a second data end of the data transmission module is used for being electrically connected with data output equipment; the voltage feedback end of the protocol module, the voltage input end of the data conversion control module and the voltage output end of the data transmission module are electrically connected with the power supply circuit;

the data conversion control module is used for converting the data of the signal sensing circuit and controlling the data transmission module to transmit the converted data to the data output equipment when the type of the intelligent equipment is used for indicating that the intelligent equipment supports data transmission, and/or controlling the protocol module to feed back the voltage required by the intelligent equipment to the power supply circuit so as to trigger the power supply circuit to output the voltage required by the intelligent equipment and charge the intelligent equipment through the signal sensing circuit; or, when the type of the intelligent device is used for indicating that the intelligent device does not support data transmission, the control protocol module feeds back the voltage required by the intelligent device to the power supply circuit to trigger the power supply circuit to output the voltage required by the intelligent device, and the intelligent device is charged through the signal induction circuit.

In an embodiment of the present invention, optionally, the data conversion control module may be as shown in fig. 2, and fig. 2 is a schematic structural diagram of the data conversion control module disclosed in the embodiment of the present invention, and as shown in fig. 2, the data conversion control module may specifically be a data conversion chip U2, LT8711HE-QEN64; fig. 3 shows a data transmission module, and fig. 3 shows a schematic structural diagram of a data transmission module disclosed in the embodiment of the present invention, and as shown in fig. 3, the data transmission module may specifically be an HDIM data transmission chip J1 and other electronic components, where an electrical connection relationship between the HDIM data transmission chip J1 and other electronic components is shown in fig. 3; the signal sensing circuit may be as shown in fig. 4, and fig. 4 is a schematic structural diagram of a signal sensing circuit disclosed in an embodiment of the present invention, where the signal sensing circuit includes a signal sensing chip J2 and other electronic components, and an electrical connection relationship between the signal sensing chip J2 and the other electronic components is as shown in fig. 4.

In the embodiment of the present invention, optionally, as shown in fig. 5, fig. 5 is a schematic structural diagram of a protocol module disclosed in the embodiment of the present invention, and as shown in fig. 5, the protocol module includes a protocol chip U4, an optocoupler U2A, and a resistor R15, where:

the communication end of the protocol chip U4 is electrically connected with the communication end of the data conversion control module, and the resistor R15 is connected with the optocoupler U2A in parallel; the protocol chip U4 is electrically connected with the power supply circuit through a resistor R15.

Therefore, when the intelligent equipment needs to transmit data, the data transmission module can be controlled to accurately output the data of the intelligent equipment to the data output equipment; and when the intelligent equipment needs to be charged, the voltage required by the intelligent equipment can be fed back to the power supply circuit through the protocol module, so that the power supply circuit outputs accurate voltage to efficiently and accurately charge the intelligent equipment.

In an optional embodiment, the control circuit further includes a power supply circuit, and the power supply circuit includes an ac-dc conversion module and a power supply module, where:

the voltage output end of the AC-DC conversion module is electrically connected with the voltage input end of the power supply module, and the voltage input end of the AC-DC conversion module is used for being electrically connected with an external power supply; a first voltage output end of the power supply module is electrically connected with a voltage input end of the signal induction circuit, and a second voltage output end of the power supply module is electrically connected with a voltage input end of the data conversion control circuit;

the alternating current-direct current conversion module is used for converting alternating current voltage of an external power supply into direct current voltage;

and the power supply module is used for converting the direct-current voltage and providing the converted direct-current voltage for the signal sensing circuit and the data conversion control circuit.

In this optional embodiment, optionally, the power supply module includes a switch module, a first power supply module and a second power supply module, wherein:

the first end of the switch module is electrically connected with the voltage output end of the alternating current-direct current conversion module, the second end of the switch module is electrically connected with the voltage input end of the first power supply sub-module, and the third end of the switch module is electrically connected with the voltage input end of the signal induction circuit; the voltage output end of the first power supply sub-module is electrically connected with the voltage input end of the second power supply sub-module and the first voltage input end of the data conversion control circuit; the voltage output end of the second power supply sub-module is electrically connected with the second voltage input end of the data conversion control circuit;

the switch module is used for controlling the connection or disconnection with the alternating current-direct current conversion module according to the power supply requirements of other modules;

the first power supply module is used for converting the direct-current voltage when the switch module is communicated with the alternating-current and direct-current conversion module and supplying the converted direct-current voltage to the data conversion control circuit and the second power supply module;

In this optional embodiment, optionally, the second power supply module includes a first voltage conversion unit and a second voltage conversion unit, where:

the voltage input end of the first voltage conversion unit and the voltage input end of the second voltage conversion unit are electrically connected with the first voltage output end of the first power supply module; the voltage output end of the first voltage conversion unit is electrically connected with the first sub-voltage input end of the data conversion control circuit, and the voltage output end of the second voltage conversion unit is electrically connected with the second sub-voltage input end of the data conversion control circuit; the first voltage conversion unit is used for reducing the direct-current voltage converted by the first power supply module to obtain a reduced first direct-current voltage and supplying the first direct-current voltage to the data conversion control circuit; the second voltage conversion unit is used for reducing the direct-current voltage converted by the first power supply module to obtain a reduced second direct-current voltage and providing the second direct-current voltage to the data conversion control circuit; wherein the first direct current voltage and the second direct current voltage are not equal.

In this optional embodiment, optionally as shown in fig. 6, fig. 6 is a schematic structural diagram of a first voltage conversion unit disclosed in the embodiment of the present invention, and as shown in fig. 6, the first voltage conversion unit includes a first conversion chip U4, an inductor L1, a capacitor C5, a capacitor C18, a capacitor C19, a resistor R10, a resistor R12, and a filter capacitor, where:

a voltage input end VIN of the first conversion chip U4 and one end of the capacitor C18 are electrically connected to a voltage output end of the voltage reduction unit, a switch end SW of the first conversion chip U4 is electrically connected to one end of the inductor L1, and a feedback end FB of the first conversion chip U4 is electrically connected to one end of the capacitor C5, one end of the resistor R10, and one end of the resistor R12, respectively; one end of the capacitor C19, the other end of the capacitor C5, the other end of the resistor R10, the other end of the inductor L1 and the filter capacitor are electrically connected with a first sub-voltage input end of the data conversion control circuit. As shown in fig. 6, the filter capacitor includes capacitors C21-C31, which are used to filter the voltage input to the data conversion control circuit, so as to improve the stability of the voltage, and thus improve the working stability of the data conversion control circuit; further, as shown in fig. 6, an anti-interference device FB3 is disposed between the inductor L2 and the first sub-voltage input terminal of the data conversion control circuit, and is configured to filter out high-frequency noise and spike interference of the voltage converted by the first voltage conversion unit, absorb electrostatic pulses, and further provide a stable and accurate voltage for the data conversion control circuit.

In this optional embodiment, optionally, as shown in fig. 7, fig. 7 is a schematic structural diagram of a second voltage conversion unit disclosed in the embodiment of the present invention, and as shown in fig. 7, the second voltage conversion unit includes a second conversion chip U11, a capacitor C33, and a capacitor C35, where:

a voltage input end VIN of the second conversion chip U11 and one end of the capacitor C33 are electrically connected with a voltage output end of the voltage reduction unit; the voltage output end VO of the second conversion chip U11 and the capacitor C35 are electrically connected to the second sub-voltage input end of the data conversion control circuit. Further, as shown in fig. 5, an anti-interference device FB6 and a voltage regulator tube D2 are arranged between the voltage output terminal VO of the second conversion chip U11 and the first sub-voltage input terminal of the data conversion control circuit, wherein the connection relationship between the anti-interference device FB6 and the voltage regulator tube D2 and other components is as shown in fig. 7, so that the anti-interference device FB6 is arranged to filter high-frequency noise and spike interference of the voltage converted by the second voltage conversion unit, absorb electrostatic pulses, and further provide stable and accurate voltage for the data conversion control circuit; and by arranging the voltage regulator tube D2, the occurrence situation that the reverse voltage of the data conversion circuit flows into the second conversion chip U11 to cause burning of the second conversion chip U11 can be reduced.

In another alternative embodiment, the first power supply module includes a voltage reduction unit, wherein a voltage input terminal of the voltage reduction unit is electrically connected to the second terminal of the switch module; the voltage output end of the voltage reduction unit is electrically connected with the voltage input end of the second power supply sub-module and the first voltage input end of the data conversion control circuit;

the voltage reduction unit is used for reducing the direct-current voltage converted by the alternating-current and direct-current conversion module and providing the direct-current voltage to the second power supply module and the data conversion control circuit; the first power supply module further comprises a voltage boosting unit, the voltage boosting unit is arranged between the switch module voltage reducing units, wherein:

and the voltage boosting unit is used for boosting the direct-current voltage converted by the alternating-current and direct-current conversion module to obtain the boosted direct-current voltage and transmitting the boosted direct-current voltage to the voltage reducing unit.

Therefore, in the optional embodiment, after the alternating-current/direct-current conversion module rectifies the alternating-current voltage of the external power supply into the direct-current voltage, the direct-current voltage is further reduced, so that stable and reliable working voltage is provided for the data conversion control circuit, and the normal work of the data conversion control circuit is facilitated; and before the voltage is reduced, the direct current voltage is boosted firstly, so that the occurrence condition that the circuit cannot work normally due to the fact that the converted direct current voltage is too low can be reduced, the normal work of the circuit is ensured, and the applicability of the circuit is improved.

In this optional embodiment, optionally as shown in fig. 8, fig. 8 is a schematic structural diagram of a voltage reduction unit disclosed in the embodiment of the present invention, and as shown in fig. 8, the voltage reduction unit includes a voltage reduction chip U12, a capacitor C56, an inductor L4, a resistor R42, a resistor R43, a resistor R45, a capacitor C58, a capacitor C59, and a capacitor C66, where:

a voltage input end VIN of the voltage reduction chip U12, one end of a resistor R42 and one end of a capacitor C66 are electrically connected with a voltage output end of the voltage boosting unit, and the other end of the resistor R42 is electrically connected with an enable end EN of the voltage reduction chip U12;

the switch end SW of the voltage reduction chip U12 is electrically connected to one end of the capacitor C56 and one end of the inductor L4, respectively, and the other end of the inductor L4 is electrically connected to one end of the resistor R43, one end of the capacitor C58, one end of the capacitor C59, and the voltage input end of the data conversion circuit; the voltage bootstrap terminal BS of the voltage reduction chip U12 is electrically connected with the other end of the capacitor C56; the feedback terminal FB of the buck chip U12 is electrically connected to the other end of the resistor R43, the other end of the capacitor C58, and one end of the resistor R45.

In this optional embodiment, optionally as shown in fig. 9, fig. 9 is a schematic structural diagram of a voltage boosting unit disclosed in the embodiment of the present invention, and as shown in fig. 9, the voltage boosting unit includes a voltage boosting chip U8, a voltage regulator tube D3, an inductor L3, a resistor R36, a resistor R38, and a resistor R39, where:

the voltage input end/suspension end VIN/NC of the boosting chip U8, one end of the inductor L3 and one end of the resistor R36 are electrically connected with the second end of the switch module, and the other end of the resistor R36 is electrically connected with the enabling end EN of the boosting chip U8; a switch end SW of the boosting chip U8 is electrically connected with the other end of the inductor L3 and the anode of the voltage-regulator tube D3, and the cathode of the voltage-regulator tube D3 is electrically connected with one end of the resistor R38 and the voltage input end VIN of the voltage-reducing unit; the feedback terminal FB of the boost chip U8 is electrically connected to the other end of the resistor R38 and one end of the resistor R39.

In this optional embodiment, optionally, as shown in fig. 10, fig. 10 is a schematic structural diagram of a switch module disclosed in the embodiment of the present invention, as shown in fig. 10, the switch module includes a MOS transistor Q3, a MOS transistor Q4, a MOS transistor Q5, a MOS transistor Q6, a resistor R28, a resistor R29, a resistor R30, a resistor R31, a resistor R32, a resistor R33, a resistor R34, a resistor R35, a capacitor C42, and a capacitor C43, where:

the grid electrode of the MOS transistor Q3 is electrically connected with the resistor R34, the drain electrode of the MOS transistor Q3 is electrically connected with one end of the resistor R32, and the other end of the resistor R32 is electrically connected with one end of the resistor R29, one end of the capacitor C42 and the grid electrode of the MOS transistor Q6; the other end of the resistor R29, the other end of the capacitor C42, the source electrode of the MOS transistor Q6, one end of the resistor R30, one end of the capacitor C43 and the source electrode of the MOS transistor Q5 are electrically connected with the voltage input end of the first power supply sub-module; the drain electrode of the MOS transistor Q6 is electrically connected with the voltage input end of the signal sensing circuit and the resistor R28 respectively, the drain electrode of the MOS transistor Q4 is electrically connected with one end of the resistor R33, and the other end of the resistor R33 is electrically connected with the other end of the resistor R30, the other end of the capacitor C43 and the grid electrode of the MOS transistor Q5 respectively; the gate of the MOS transistor Q4 is electrically connected to the resistor R34.

In another optional embodiment, the ac-dc conversion module includes an ac unit, a rectifying unit, and a control unit, wherein:

the voltage input end of the alternating current unit is electrically connected with an external power supply, and the voltage output end of the alternating current unit is electrically connected with the voltage output end of the rectification unit;

the alternating current unit is used for transmitting alternating current voltage of an external power supply to the rectifying unit when the alternating current unit is conducted;

and the rectifying unit is used for converting the received alternating voltage into direct voltage and providing the direct voltage for the power supply module.

In this optional embodiment, optionally, as shown in fig. 11, fig. 11 is a schematic structural diagram of an ac-dc conversion module disclosed in an embodiment of the present invention, and as shown in fig. 11, electronic components included in each of an ac unit, a rectifying unit, and a control unit in the ac-dc conversion module and an electrical connection relationship between each of the electronic components are as shown in fig. 11.

Therefore, in the optional embodiment, the control unit controls the conduction of the alternating current unit, so that the alternating current voltage of the external power supply is transmitted to the rectifying unit to be rectified and converted into the direct current voltage, and stable and reliable voltage is provided for the signal sensing circuit and the data conversion control circuit, so that the intelligent device is stably charged and/or data is transmitted.

The working principle of the control circuit applied to the multifunctional charging equipment in the embodiment of the invention is as follows:

in the embodiment of the invention, when the charging device is inserted into an external power supply (such as a mains supply), the alternating current unit transmits alternating current voltage of the mains supply to the rectifying unit under the control of the control unit, the rectifying unit rectifies the alternating current voltage of the mains supply to convert the rectified alternating current voltage into direct current voltage, such as 5V-20V, supplies the converted direct current voltage to Q3-Q6 of the switching module, supplies the converted direct current voltage to the signal sensing chip J2 (TYPE-C) through the switching module, so that the signal sensing chip J2 works normally, supplies the boosted direct current voltage to the boosting chip U8 to boost the direct current voltage, supplies the boosted voltage to the voltage reduction chip U12 to reduce the voltage, obtains stable 5V voltage, supplies the stable 5V voltage to the data transmission chip J1, the first conversion chip U4 and the second conversion chip U11, converts the voltage into 1.2V voltage through the first conversion chip U4, converts the voltage into 3.3V voltage through the second conversion chip U11, and supplies the voltage to the data conversion control chip U2 (LT 1 HE-QFN 64) so that the data conversion control chip U2 works; when the signal sensing chip J2 detects that the intelligent device is inserted, the signal sensing chip J2 transmits a signal corresponding to the intelligent device to the data conversion control chip U2 through the communication end UCC1 or UCC2, the data conversion control chip U2 judges the type of the intelligent device according to the signal, when the type of the intelligent device is used for indicating that the intelligent device supports data transmission, the audio data of the intelligent device and/or the picture/video data of the intelligent device are/is acquired through the audio data end DP-AUX +, DP-AUX-, and/or the picture/video data of the intelligent device are/is acquired through the picture/video data end USB D +, USB D-, and the received data are converted, then the converted data are transmitted to the data output device through the data end SCL and SDA through the data transmission chip J1, and/or the data conversion control chip U2 controls the protocol chip U4 through the communication end DCC1 to feed back the voltage required by the intelligent device to the rectifying unit so as to trigger the rectifying unit to output the voltage required by the intelligent device, and then the voltage is provided to the intelligent device for charging the intelligent device; or, when the type of the intelligent device is used for indicating that the intelligent device does not support data transmission, the data conversion control chip U2 feeds back the voltage required by the intelligent device to the rectifying unit through the communication terminal DCC1 control protocol chip U4 to trigger the rectifying unit to output the voltage required by the intelligent device, and the voltage is provided to the signal induction chip J2 through the switch module Q5 and Q6, so as to charge the intelligent device, thereby enriching the intelligent function of the charging device, and simplifying the structure of the charging device, thereby facilitating the assembly, carrying and reducing the cost of the charging device.

Example two

Referring to fig. 12, fig. 12 is a schematic flowchart illustrating a control method applied to a multifunctional charging device according to an embodiment of the present invention. The method is applied to a control circuit, wherein the control circuit comprises a signal sensing circuit and a data conversion control circuit, a first communication end of the signal sensing circuit is electrically connected with a communication end of the data conversion control circuit, and a first data end of the data conversion control circuit is electrically connected with a data end of the signal sensing circuit; the second data end of the data conversion control circuit is used for electrically connecting data output equipment; the second communication end of the signal induction circuit is used for being electrically connected with the intelligent equipment, and the voltage input end of the signal induction circuit and the voltage input end of the data conversion control circuit are both used for being electrically connected with the power supply circuit; as shown in fig. 12, the method includes the steps of:

101. when detecting that the intelligent equipment is accessed, the signal induction circuit sends a signal corresponding to the intelligent equipment to the data conversion control circuit.

102. The data conversion control circuit receives the signal sent by the signal induction circuit, determines the type of the intelligent equipment according to the received signal sent by the signal induction circuit, and executes operation matched with the type of the intelligent equipment.

In the embodiment of the invention, when the type of the intelligent device is used for indicating that the intelligent device supports data transmission, the operation matched with the type of the intelligent device comprises the steps of converting the data of the signal sensing circuit, transmitting the converted data to the data output device, and/or controlling the signal sensing circuit to charge the intelligent device; when the type of the smart device is used to indicate that the smart device does not support data transmission, the operation matched with the type of the smart device includes controlling the signal induction circuit to charge the smart device.

It should be noted that, for the related descriptions of the signal sensing circuit, the data conversion control circuit and the power supply circuit, please refer to the description of the related contents in the first embodiment, which is not described herein again.

It can be seen that, in the implementation of the control method applied to the multifunctional charging device described in fig. 12, the signal sensing circuit and the data conversion control circuit are arranged for the multifunctional charging device, and the data conversion control circuit analyzes the signal, which is sent from the signal sensing circuit and corresponds to the intelligent device accessing the signal sensing circuit, to obtain the type of the intelligent device, and then the data of the intelligent device is accurately transmitted to the data output device for output according to the type of the intelligent device, for example: throw screen equipment and/or, carry out accurate charging to smart machine, richened charging device's intelligent function to and simplified charging device's structure, thereby be convenient for charging device's equipment, carry and reduce cost.

In an optional embodiment, the method may further comprise the steps of:

when the type of the intelligent equipment is used for indicating that the intelligent equipment supports data transmission, the data conversion control circuit acquires the current residual electric quantity of the intelligent equipment and the data transmission quantity of the intelligent equipment and determines the transmission speed required by the data of the intelligent equipment;

the data conversion control circuit determines the consumed electric quantity in unit time of data of the intelligent equipment transmitted at the transmission speed, and determines the transmission duration required by the intelligent data according to the data transmission quantity of the intelligent equipment and the transmission speed required by the data of the intelligent equipment;

the data conversion control circuit analyzes whether the current residual electric quantity of the intelligent equipment can meet the data transmission requirement of the intelligent equipment or not according to the determined electric quantity consumed in unit time and the determined transmission time length, and when the current residual electric quantity of the intelligent equipment cannot meet the data transmission requirement of the intelligent equipment, the charging voltage required by the intelligent equipment is determined according to the current residual electric quantity of the intelligent equipment, the data transmission quantity of the intelligent equipment, the determined transmission time length and the electric quantity consumed in unit time;

and the data conversion control circuit feeds back the required charging voltage to the power supply circuit through the protocol module so as to trigger the power supply voltage to provide the required charging voltage for the signal induction circuit and charge the intelligent equipment.

Therefore, according to the optional embodiment, when the current remaining power of the intelligent device does not meet the data transmission requirement of the intelligent device, the charging voltage required by the intelligent device is determined automatically according to the current remaining power of the intelligent device, the data transmission quantity of the intelligent device, the determined transmission time and the consumed power in unit time, so that the determination accuracy and reliability of the charging voltage required by the intelligent device can be improved, the condition that enough power meets the requirement of high-speed data transmission is ensured, and the success probability of high-speed data transmission of the intelligent device is improved.

In this alternative embodiment, determining the required transmission speed of the data of the smart device includes:

the data conversion control circuit collects sound signals output by a user in the current environment, analyzes the sound signals of the user and obtains frequency spectrum information of the sound signals of the user, wherein the sound signals comprise audio signals, tone signals, decibels and the like, and the frequency spectrum information of the audio signals comprises a frequency spectrum range and a center frequency point;

the data conversion control circuit determines the transmission urgency of the data of the intelligent equipment according to the frequency spectrum information and acquires the transmission purpose of the data of the intelligent equipment, wherein the transmission purpose comprises but is not limited to one or more of work purpose, entertainment purpose and body-building purpose;

the data conversion control circuit determines the transmission speed required by the data of the intelligent equipment according to the transmission urgency of the data, the frequency spectrum range and the center frequency point of the audio signal and the transmission purpose of the data.

In this alternative embodiment, a higher urgency indicates a higher required transmission speed.

Therefore, in the optional embodiment, the transmission speed of the data is determined together by combining the frequency spectrum range of the audio signal output by the user, the center frequency point, the transmission urgency of the data and the transmission purpose of the data, and the determination accuracy and reliability of the transmission speed of the data can be improved, so that the determination accuracy and reliability of the charging voltage required by the intelligent device are further improved, and the success probability of high-speed data transmission of the intelligent device is further improved.

EXAMPLE III

Referring to fig. 13, fig. 13 is a schematic structural diagram of a multifunctional charging device according to an embodiment of the present invention, where the multifunctional charging device is capable of simultaneously charging an intelligent device and/or transmitting audio/video and image data. The multifunctional charging device comprises a device body, and ports arranged on the device body, wherein the ports comprise a USB port, a PD port, an HDIM port, and a control circuit applied to the multifunctional charging device, and are used for executing the control method applied to the multifunctional charging device as described in embodiment two. The USB port and the PD port are used for charging, and the HDIM port is used for transmitting audio and video and picture data.

It should be noted that, for a detailed description of the control circuit applied to the multifunctional charging device, please refer to a detailed description of the relevant data in the first embodiment, and for a detailed description of the control method applied to the multifunctional charging device, please refer to a detailed description of the relevant data in the second embodiment, which is not described again in this embodiment.

It can be seen that, implementing the electronic device described in fig. 13 can obtain the type of the intelligent device by setting the signal sensing circuit and the data conversion control circuit for the multifunctional charging device, and analyzing the signal corresponding to the intelligent device accessing the signal sensing circuit and sent from the signal sensing circuit through the data conversion control circuit, and then accurately transmitting the data of the intelligent device to the data output device for output according to the type of the intelligent device, for example: throw screen equipment and/or, carry out accurate charging to smart machine, richened charging device's intelligent function to and simplified charging device's structure, thereby be convenient for charging device's equipment, carry and reduce cost.

The control circuit, the control method and the charging device applied to the multifunctional charging device disclosed in the embodiments of the present invention are described above in detail, and the principle and the implementation of the present invention are explained in this document by applying specific embodiments, but the foregoing preferred embodiments are not intended to limit the present invention, and the above description of the embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application range without departing from the spirit and scope of the present invention, and therefore, the protection scope of the present invention is subject to the scope defined by the claims.

Claims

1. The utility model provides a control circuit who is applied to multi-functional battery charging outfit which characterized in that, control circuit includes signal induction circuit and data conversion control circuit, wherein:

a first communication end of the signal sensing circuit is electrically connected with a communication end of the data conversion control circuit, and a first data end of the data conversion control circuit is electrically connected with a data end of the signal sensing circuit; the second data end of the data conversion control circuit is electrically connected with data output equipment;

2. The control circuit applied to the multifunctional charging device of claim 1, wherein the data conversion control circuit comprises a data conversion control module, a protocol module and a data transmission module, wherein:

3. The control circuit applied to the multifunctional charging device according to claim 1, wherein the control circuit further comprises the power supply circuit, the power supply circuit comprises an ac/dc conversion module and a power supply module, wherein:

the power supply module is used for converting the direct-current voltage and providing the converted direct-current voltage for the signal induction circuit and the data conversion control circuit;

wherein, alternating current-direct current conversion module includes interchange unit, rectifier unit and the control unit, wherein:

4. The control circuit applied to the multifunctional charging device according to claim 3, wherein the power supply module comprises a switch module, a first power supply module and a second power supply module, wherein:

the voltage output end of the first power supply sub-module is electrically connected with the voltage input end of the second power supply sub-module and the first voltage input end of the data conversion control circuit;

the switch module is used for controlling the AC/DC conversion module to be disconnected or connected according to the power supply requirements of other modules;

the first power supply sub-module is configured to convert the dc voltage when the switch module is turned on with the ac-dc conversion module, and provide the converted dc voltage to the data conversion control circuit and the second power supply sub-module;

5. The control circuit applied to a multifunctional charging device according to claim 3, wherein the second power supply module comprises a first voltage conversion unit and a second voltage conversion unit, wherein:

wherein the first DC voltage and the second DC voltage are not equal.

6. The control circuit applied to the multifunctional charging device according to claim 5, wherein the first voltage conversion unit comprises a first conversion chip (U4), an inductor (L1), a capacitor (C5), a capacitor (C18), a capacitor (C19), a resistor (R10), a resistor (R12) and a filter capacitor, wherein:

a voltage input end of the first conversion chip (U4) and one end of the capacitor (C18) are electrically connected with a voltage output end of the voltage reduction unit, a switch end of the first conversion chip (U4) is electrically connected with one end of the inductor (L1), and a feedback end of the first conversion chip (U4) is electrically connected with one end of the capacitor (C5), one end of the resistor (R10) and one end of the resistor (R12) respectively; one end of the capacitor (C19), the other end of the capacitor (C5), the other end of the resistor (R10), the other end of the inductor (L1) and the filter capacitor are electrically connected with a first sub-voltage input end of the data conversion control circuit;

the second voltage conversion unit comprises a second conversion chip (U11), a capacitor (C33) and a capacitor (C35), wherein:

the voltage input end of the second conversion chip (U11) and one end of the capacitor (C33) are electrically connected with the voltage output end of the voltage reduction unit;

the voltage output end of the second conversion chip (U11) and the capacitor (C35) are electrically connected with the second sub-voltage input end of the data conversion control circuit.

7. The control circuit applied to the multifunctional charging device according to any one of claims 4 to 6, wherein the first power supply module comprises a voltage reduction unit, wherein:

the boosting unit is used for boosting the direct-current voltage converted by the alternating-current and direct-current conversion module to obtain the boosted direct-current voltage and transmitting the boosted direct-current voltage to the voltage reduction unit;

wherein, the voltage reduction unit comprises a voltage reduction chip (U12), a capacitor (C56), an inductor (L4), a resistor (R42), a resistor (R43), a resistor (R45), a capacitor (C58), a capacitor (C59) and a capacitor (C66), wherein:

the voltage input end of the voltage reduction chip (U12), one end of the resistor (R42) and one end of the capacitor (C66) are electrically connected with the voltage output end of the voltage boosting unit, and the other end of the resistor (R42) is electrically connected with the enabling end of the voltage reduction chip (U12);

the switch end of the voltage reduction chip (U12) is electrically connected with one end of the capacitor (C56) and one end of the inductor (L4) respectively, and the other end of the inductor (L4) is electrically connected with one end of the resistor (R43), one end of the capacitor (C58), one end of the capacitor (C59) and the voltage input end of the data conversion circuit; the voltage bootstrap end of the voltage reduction chip (U12) is electrically connected with the other end of the capacitor (C56);

the feedback end of the voltage reduction chip (U12) is electrically connected with the other end of the resistor (R43), the other end of the capacitor (C58) and one end of the resistor (R45);

wherein, the boost unit includes boost chip (U8), stabilivolt (D3), inductance (L3), resistance (R36), resistance (R38), resistance (R39), wherein:

the voltage input end/suspension end of the boost chip (U8), one end of the inductor (L3) and one end of the resistor (R36) are electrically connected with the second end of the switch module, and the other end of the resistor (R36) is electrically connected with the enabling end of the boost chip (U8);

the switch end of the boosting chip (U8) is electrically connected with the other end of the inductor (L3) and the anode of the voltage stabilizing tube (D3), and the cathode of the voltage stabilizing tube (D3) is electrically connected with one end of the resistor (R38) and the voltage input end of the voltage reduction unit;

and the feedback end of the boosting chip (U8) is electrically connected with the other end of the resistor (R38) and one end of the resistor (R39).

8. The control circuit applied to the multifunctional charging device of any one of claims 4 to 6, wherein the switch module comprises a MOS transistor (Q3), a MOS transistor (Q4), a MOS transistor (Q5), a MOS transistor (Q6), a resistor (R28), a resistor (R29), a resistor (R30), a resistor (R31), a resistor (R32), a resistor (R33), a resistor (R34), a resistor (R35), a capacitor (C42) and a capacitor (C43), wherein:

the grid electrode of the MOS transistor (Q3) is electrically connected with the resistor (R34), the drain electrode of the MOS transistor (Q3) is electrically connected with one end of the resistor (R32), and the other end of the resistor (R32) is electrically connected with one end of the resistor (R29), one end of the capacitor (C42) and the grid electrode of the MOS transistor (Q6);

the other end of the resistor (R29), the other end of the capacitor (C42), the source electrode of the MOS tube (Q6), one end of the resistor (R30), one end of the capacitor (C43) and the source electrode of the MOS tube (Q5) are electrically connected with the voltage input end of the first power supply sub-module;

the drain electrode of the MOS tube (Q6) is electrically connected with the voltage input end of the signal sensing circuit and the resistor (R28) respectively, the drain electrode of the MOS tube (Q4) is electrically connected with one end of the resistor (R33), and the other end of the resistor (R33) is electrically connected with the other end of the resistor (R30), the other end of the capacitor (C43) and the grid electrode of the MOS tube (Q5) respectively; the gate of the MOS tube (Q4) is electrically connected with the resistor (R34).

9. A multifunctional charging apparatus comprising an apparatus body, ports provided on the apparatus body, the ports including a USB port, a PD port and an HDIM port, characterized in that the multifunctional charging apparatus further comprises a control circuit applied to the multifunctional charging apparatus as claimed in any one of claims 1 to 13.

10. The control method is applied to a control circuit, wherein the control circuit comprises a signal sensing circuit and a data conversion control circuit, wherein a first communication end of the signal sensing circuit is electrically connected with a communication end of the data conversion control circuit, and a first data end of the data conversion control circuit is electrically connected with a data end of the signal sensing circuit; the second data end of the data conversion control circuit is electrically connected with data output equipment; the second communication end of the signal induction circuit is used for being electrically connected with intelligent equipment, and the voltage input end of the signal induction circuit and the voltage input end of the data conversion control circuit are both used for being electrically connected with a power supply circuit; the method comprises the following steps: