CN105939036B

CN105939036B - Mobile phone data line with quick charging function

Info

Publication number: CN105939036B
Application number: CN201610391780.6A
Authority: CN
Inventors: 黄本元; 张本钢
Original assignee: Guangzhou Chengtai Electronic Technology Co ltd
Current assignee: Dongguan Changqi Electronic Technology Co ltd
Priority date: 2016-06-06
Filing date: 2016-06-06
Publication date: 2020-10-02
Anticipated expiration: 2036-06-06
Also published as: CN105939036A

Abstract

The invention provides a mobile phone data line with a quick charging function, wherein a printed circuit board is arranged on a data line head, and the circuit comprises an input module, a voltage conversion module, a mobile phone signal processing module and an output module which are electrically connected in sequence. The mobile phone data line with the quick charging function is suitable for multiple types of mobile phones, and quick charging is realized without an AC-DC adapter.

Description

Mobile phone data line with quick charging function

Technical Field

The present invention relates to electronic circuits, and particularly to a data line of a mobile phone with a fast charging function.

Background

At present, common mobile phone quick-charging chargers on the market comprise a mobile phone quick-charging charger with QC2.0, a desk type multi-port USB quick-charging charger, a wall-plugged mobile phone quick-charging charger and the like, but the chargers need to be provided with an AC-DC adapter to be plugged into 220V mains supply for charging so as to realize the quick-charging, so that when a user only carries a charging treasure or a data line outside and does not carry a charging head, the quick-charging can not be realized, and for a mobile phone which does not support the quick-charging function, the quick-charging function can not be realized.

Disclosure of Invention

The invention provides a mobile phone data line with a quick charging function, which is suitable for various mobile phones and can realize quick charging without an AC-DC adapter.

The technical scheme of the invention is realized as follows:

a mobile phone data line with a quick charging function is provided with a printed circuit board on a data line head, and the circuit comprises an input module, a voltage conversion module, a mobile phone signal processing module and an output module which are electrically connected in sequence.

Compared with the USB data line on the market, the mobile phone data line with the quick charging function provided by the invention has the advantages that the circuit control part is added at the position of the line head, the mobile phone data line can automatically adapt to all mobile phones supporting QC2.0 quick charging protocol, Samsung, apple quick charging protocol and BC2.1 protocol on the market, the quick charging is realized, a user does not need to carry an adapter with the mobile phone every time the mobile phone is taken out, and the quick charging function can be realized for the mobile phone which does not support the quick charging function.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an electronic circuit diagram of a mobile phone data line with a fast charging function according to the present invention.

Detailed Description

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 of the 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.

Referring to fig. 1, a mobile phone data line with a fast charging function is provided with a printed circuit board on a data line head, and the circuit includes an input module, a voltage conversion module, a mobile phone signal processing module and an output module which are electrically connected in sequence.

Preferably, the voltage conversion module includes a capacitor C7 bridged between the input modules, both ends of the capacitor C7 are electrically connected between

pins

2 and 4 of a boost IC (Integrated circuit), respectively, the

pins

2 and 3 of the boost IC are electrically connected, the pin 2 is electrically connected to an inductor L4, the other end of the inductor L4 is electrically connected to a drain of a Metal oxide semiconductor field effect transistor (MOS fet), and a gate of the MOS is electrically connected to pin 5 of the boost IC; the source electrode of the MOS tube is electrically connected with the boosting IC and then grounded; a pin 1 of the boost IC is electrically connected with a power supply, one end of a diode D8 is connected with the drain electrode of the MOS tube, and the other end is electrically connected with the power supply through a capacitor C18; the resistor 0805 is connected with a capacitor C18 in parallel; one end of the resistor R34 is connected with the input end, and the other end is grounded. Wherein inductance L4 can be with electric energy and magnetic field energy interconversion, after the MOS pipe switch is closed, inductance L4 converts the electric energy into magnetic field energy and saves, the inductance converts the magnetic field energy of storage into electric field energy after the MOS pipe disconnection, and this energy obtains smooth direct current voltage after the filtering with input mains voltage superpose through diode and electric capacity and provides the load, because this voltage is that input mains voltage and inductance's magnetic field energy convert the superposition back formation of electric energy so output voltage is higher than input voltage, be promptly that the process of stepping up is accomplished. The diode D8 has an isolation function, namely after the MOS tube switch is closed, the overall voltage of the diode is lower than the negative voltage, and at the moment, the diode is reversely biased to be cut off, so that the energy storage process of the inductor does not influence the normal power supply of the output end capacitor to the load; when the MOS tube is disconnected, the two types of superposed energy are supplied to the load through the diode, and the diode is conducted in the forward direction at the moment.

Preferably, the mobile phone signal processing module comprises capacitors C8 and C9 connected in parallel with the voltage conversion module; a pin 5 of the signal processing chip M8 is grounded, one end of the capacitor C9 is connected with a pin 1 of the M8, and the other end is connected with a pin 5 of the M8; the pin 3 of the M8 is connected with a power supply through a resistor R37, the pin 4 is connected with the power supply through R36, and the pin 1 is grounded through a capacitor C20;

pins

1, 6, 2, and 5 of the M8 are electrically connected to the output module, respectively.

Preferably, the output module is provided with an output elastic sheet, the output elastic sheet is provided with 1, 2, 3 and 4 pins, and the 1 pin, 6 pin, 2 pin and 5 pin of the M8 are respectively electrically connected with the 1, 2, 3 and 4 pins.

Preferably, the input module is a USB interface.

The mobile phone data line with the quick charging function is suitable for mobile phones of various brands and different styles, has high charging speed compared with a common charger in the market, and can realize the same effect as an original mobile phone charger. Compared with a desk-top quick charger and a common data line scheme (or an original charger), the charger is convenient to use and can be used without inserting the charger into 220V mains supply. After the mobile phone data line with the quick charging function provided by the invention is inserted into a 5V output port of a vehicle charger, a charger, an adapter and the like, the quick charging function of the mobile phone can be realized.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A mobile phone data line with a quick charging function is characterized in that a printed circuit board is arranged on a data line head, the circuit comprises an input module, a voltage conversion module, a mobile phone signal processing module and an output module which are electrically connected in sequence, and the mobile phone signal processing module comprises capacitors C8 and C9 which are connected with the voltage conversion module in parallel; a pin 5 of the signal processing chip M8 is grounded, one end of the capacitor C9 is connected with a pin 1 of the M8, and the other end is connected with a pin 5 of the M8; the pin 3 of the M8 is connected with a power supply through a resistor R37, the pin 4 is connected with the power supply through R36, and the pin 1 is grounded through a capacitor C20; pins 1, 6, 2, and 5 of the M8 are electrically connected to pins 1, 3, 2, and 4 of the output module, respectively.

2. The mobile phone data cable with a fast charging function as claimed in claim 1, wherein the voltage conversion module includes a capacitor C7 connected across the input module, two ends of the capacitor C7 are further electrically connected to pins 2 and 4 of the boost IC, respectively, pin 2 and pin 3 of the boost IC are electrically connected, pin 2 is electrically connected to an inductor L4, the other end of the inductor L4 is electrically connected to the drain of the MOS transistor, and the gate of the MOS transistor is electrically connected to pin 5 of the boost IC; the source electrode of the MOS tube is electrically connected with the 4 pins of the boost IC and then grounded; a pin 1 of the boost IC is electrically connected with a power supply, one end of a diode D8 is connected with the drain electrode of the MOS tube, and the other end is electrically connected with the power supply through a capacitor C18; the resistor 0805 is connected with a capacitor C18 in parallel; one end of the resistor R34 is connected with the input end of the power supply, and the other end is grounded.

3. The mobile phone data cable with the quick charging function as claimed in claim 1, wherein the output module is provided with an output elastic sheet, the output elastic sheet is provided with pins 1, 2, 3 and 4, and pins 1, 2, 6 and 5 of the M8 are respectively and correspondingly electrically connected with pins 1, 2, 3 and 4 of the output module.

4. The mobile phone data line with the quick charging function as claimed in claim 1, wherein the input module is a USB interface.