CN208820488U

CN208820488U - A wireless charging stand with USB charging function

Info

Publication number: CN208820488U
Application number: CN201821431136.8U
Authority: CN
Inventors: 金栋; 钟勇; 周鑫
Original assignee: Dongguan All Best Technology Ltd
Current assignee: Dongguan All Best Technology Ltd
Priority date: 2018-08-31
Filing date: 2018-08-31
Publication date: 2019-05-03
Anticipated expiration: 2028-08-31

Abstract

The utility model relates to the technical field of wireless charging, in particular to a wireless charging seat with a USB charging function, which comprises a wireless charging coil, a power input module, a MCU, an operational amplification module, a full-bridge inversion module, a low-voltage difference linear stabilization module, an input voltage induction module, a demodulator module and a USB charging module; the power input end is electrically connected with the USB charging module, and the operational amplification module is respectively electrically connected with the power input module, the input voltage induction module, the low-dropout linear stabilization module and the full-bridge inversion module; the MCU is respectively and electrically connected with the input voltage induction module and the demodulator module; the full-bridge inversion module is respectively electrically connected with the wireless charging coil and the low-voltage difference linear stabilization module. The utility model discloses a take USB to charge wireless charging seat of function can provide wireless when charging, can also provide wired charging, has greatly made things convenient for user's use.

Description

A kind of wireless charging base of band USB charge function

Technical field

The utility model relates to wireless charging technical fields, and in particular to a kind of wireless charging base of band USB charge function.

Background technique

Current wireless charger based on wireless charging, can only mainly be filled to equipment such as the mobile phones for supporting wireless charging Electricity.But general family also has the equipment for not supporting wireless charging, thus in addition to configure charger, can not give and set simultaneously It is standby to carry out wired charging and wireless charging.

Summary of the invention

In order to overcome shortcoming and defect existing in the prior art, the purpose of this utility model is to provide a kind of band USB The wireless charging base of charge function, while which is capable of providing wireless charging, moreover it is possible to provide wired charging, greatly It is convenient for users to use.

The utility model is achieved through the following technical solutions:

A kind of wireless charging base of band USB charge function, including wireless charging coil, Power Entry Module, MCU, operation are put Big module, full-bridge inverting module, low pressure difference linearity stable module, input voltage induction module, demodulator module and USB charging Module；The power input is electrically connected with USB charging module, the operational amplifying module respectively with Power Entry Module, defeated Enter voltage induced module, low pressure difference linearity stable module and the electrical connection of full-bridge inverting module；The MCU respectively with full-bridge inverting mould Block, input voltage induction module and demodulator module electrical connection；The full-bridge inverting module respectively with wireless charging electric circle and low pressure Poor linear stable module electrical connection.

Wherein, the USB charging module includes the first USB charging circuit, and the first USB charging circuit includes chip U1, resistance R40, R41, R45, capacitor C53, C54, C55, C56 and the first USB interface, pin 1, the resistance of the chip U1 One end of one end of R40, one end of capacitor C54 and capacitor C53 is connect with Power Entry Module, and the resistance R40's is another End is connect with one end of the pin 2 of chip U1 and resistance R45 respectively；The other end of the capacitor C54, resistance C53 it is another End, the other end of resistance R45, one end of resistance R41, the pin 4 of chip U1, one end of capacitor C56, capacitor C55 one end with And first the pin 4 of USB interface be grounded, the other end of the resistance R41 is connect with the pin 3 of chip U1；The capacitor C56 The other end, the other end of capacitor C55, the pin 8 of chip U1 connect with the pin 1 of the first USB interface；The chip U1's Pin 7 is connect with the pin 2 of the first USB interface, and the pin 6 of the chip U1 is connect with the pin 3 of the first USB interface.

Wherein, the USB charging module further includes the 2nd USB charging circuit, and the 2nd USB charging circuit includes chip U2, resistance R42, R43, R46, capacitor C51, C52, C57, C58 and secondary USB interface, pin 1, the resistance of the chip U2 One end of one end of R42, one end of capacitor C51 and capacitor C52 is connect with Power Entry Module, and the resistance R42's is another End is connect with one end of the pin 2 of chip U2 and resistance R46 respectively；The other end of the capacitor C51, resistance C52 the other end, The other end of resistance R46, one end of resistance R43, the pin 4 of chip U2, one end of capacitor C57, one end of capacitor C58 and The pin 4 of two USB interfaces is grounded, and the other end of the resistance R43 is connect with the pin 3 of chip U2；The capacitor C57's The other end, the other end of capacitor C58, chip U2 pin 8 connect with the pin of secondary USB interface 1；The chip U2's Pin 7 is connect with the pin 2 of secondary USB interface, and the pin 6 of the chip U2 is connect with the pin 3 of secondary USB interface.

Wherein, the chip U2 uses the chip of model SY9602.

Wherein, the chip U1 uses the chip of model SY9602.

Wherein, the wireless charging base further includes temperature sense module, the temperature sense module and full-bridge inverter and Demodulator connection.

Wherein, the MCU uses the chip of model NU1300.

The utility model has the beneficial effects that

Wired and wireless charging: the wireless charging base of the utility model can be carried out simultaneously, by being integrated with wireless charging Circle and USB charging module, can carry out wired charging and wireless charging according to the demand of the equipment of user simultaneously and take difference Charging modes, greatly facilitate the use of user.

Detailed description of the invention

Using attached drawing, the utility model is described in further detail, but the embodiment in attached drawing is not constituted to the utility model Any restrictions for those of ordinary skill in the art without creative efforts, can also be according to following attached Figure obtains other attached drawings.

Fig. 1 is the module frame chart of the utility model.

Fig. 2 is the circuit diagram of the Power Entry Module of the utility model.

Fig. 3 is the circuit diagram of the MCU of the utility model.

Fig. 4 is the circuit diagram of the operational amplifying module of the utility model.

Fig. 5 is the circuit diagram of the full-bridge inverting module of the utility model.

Fig. 6 is the circuit diagram of the low pressure difference linearity stable module of the utility model.

Fig. 7 is the circuit diagram of the input voltage induction module of the utility model.

Fig. 8 is the circuit diagram of the demodulator module of the utility model.

Fig. 9 is another circuit diagram of the demodulator module of the utility model.

Figure 10 is another circuit diagram of the demodulator module of the utility model.

Figure 11 is the circuit diagram of the first USB charging circuit of the utility model.

Figure 12 is the circuit diagram of the 2nd USB charging circuit of the utility model.

Specific embodiment

Illustrate the embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this theory Content disclosed by bright book understands other advantages and effect of the utility model easily.The utility model can also be by addition Different specific embodiments are embodied or practiced, and the various details in this specification can also be based on different viewpoints and answer With carrying out various modifications or alterations under the spirit without departing from the utility model.

It should be noted that structure depicted in this specification attached drawing, only to cooperate the revealed content of specification, So that those skilled in the art understands and reads, enforceable qualifications are not intended to limit the utility model, therefore are not had Technical essential meaning, the modification or adjustment of any structure are not influencing the effect of the utility model can be generated and institute's energy Under the purpose reached, should all still it fall in the range of the revealed technology contents of the utility model obtain and can cover.

As shown in Figures 1 to 12, a kind of wireless charging base of band USB charge function, including wireless charging coil, power input Module, MCU, operational amplifying module, full-bridge inverting module, low pressure difference linearity stable module, input voltage induction module, demodulator Module and USB charging module；The power input is electrically connected with USB charging module, the operational amplifying module respectively with Power Entry Module, input voltage induction module, low pressure difference linearity stable module and the electrical connection of full-bridge inverting module；The MCU It is electrically connected respectively with full-bridge inverting module, input voltage induction module and demodulator module；The full-bridge inverting module respectively with Wireless charging electric circle and the electrical connection of low pressure difference linearity stable module；The USB charging module includes the first USB charging circuit, described First USB charging circuit includes that chip U1, resistance R40, R41, R45, capacitor C53, C54, C55, C56 and the first USB connect Mouthful, the pin 1 of the chip U1, one end of resistance R40, one end of capacitor C54 and capacitor C53 one end and power input Module connection, the other end of the resistance R40 are connect with one end of the pin 2 of chip U1 and resistance R45 respectively；The capacitor The other end of C54, the other end of resistance C53, the other end of resistance R45, one end of resistance R41, chip U1 pin 4, capacitor The pin 4 of one end of C56, one end of capacitor C55 and the first USB interface is grounded, the other end and core of the resistance R41 The pin 3 of piece U1 connects；The other end of the capacitor C56, the other end of capacitor C55, chip U1 pin 8 with the first USB The pin 1 of interface connects；The pin 7 of the chip U1 is connect with the pin 2 of the first USB interface, the pin 6 of the chip U1 It is connect with the pin 3 of the first USB interface.

Wherein, wireless charging coil, Power Entry Module, MCU, operational amplifying module, full-bridge inverting module, low pressure difference linearity How to connect between stable module, input voltage induction module, demodulator module and USB charging module is the prior art, It is not repeating herein.

Specifically, the USB charging module further includes the 2nd USB charging circuit, the 2nd USB charging circuit includes core Piece U2, resistance R42, R43, R46, capacitor C51, C52, C57, C58 and the 2nd USB interface, pin 1, the electricity of the chip U2 One end, one end of capacitor C51 and one end of capacitor C52 of resistance R42 is connect with Power Entry Module, and the resistance R42's is another One end is connect with one end of the pin 2 of chip U2 and resistance R46 respectively；The other end of the capacitor C51, resistance C52 it is another End, the other end of resistance R46, one end of resistance R43, the pin 4 of chip U2, one end of capacitor C57, capacitor C58 one end with And the pin 4 of secondary USB interface is grounded, the other end of the resistance R43 is connect with the pin 3 of chip U2；The capacitor C57 The other end, the other end of capacitor C58, the pin 8 of chip U2 connect with the pin of secondary USB interface 1；The chip U2's Pin 7 is connect with the pin 2 of secondary USB interface, and the pin 6 of the chip U2 is connect with the pin 3 of secondary USB interface.

The wireless charging base of the present embodiment, has the effect that

The wireless charging base with USB charge function of the present embodiment, chip U1 and chip U2 are all made of model SY9602 Chip, SY9601 is the current limliting chip of a integrated Type-C agreement and BC1.2 agreement, output current limit it is adjustable, integrate The PMOS switch of maximum current limliting 3A, D+/D- support BC1.2 agreement, automatic identification apple, three magnitude mobile phones, it is ensured that give The charging of cell phone apparatus maximum power.SY9601 supports Type-C mouthfuls of outputs, and after detecting CC connection, current limiting switch is opened, And state equipment maximum output current ability.The packing forms that SY9601 is used integrate super-low impedance PMOS for ESOP8 or DFN10 Switch: conduction impedance 30m Ω, and have the function of to prevent output from flowing backward, improve the stability of the cradle charging of this implementation.

The wireless charging base with USB charge function of the present embodiment, MCU use the chip of model NU1300, NU1300 Chip meets QI certification wireless charging scheme, so that the wireless charging base of the present embodiment supports the wireless fast charge scheme of QC2.0/3.0.

Specifically, the wireless charging base further includes temperature sense module, the temperature sense module and full-bridge inverter It is connected with demodulator, to monitor temperature of the cradle in charging at any time, prevents temperature excessively high.

Finally it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than to this reality With the limitation of novel protected range, although being explained in detail referring to preferred embodiment to the utility model, this field it is general Lead to it will be appreciated by the skilled person that can be with the technical solution of the present invention is modified or equivalently replaced, without departing from this The spirit and scope of utility model technical solution.

Claims

1. A wireless charging stand with USB charging function, comprising a wireless charging coil, characterized in that: also comprising a power input module, an MCU, an operational amplifier module, a full-bridge inverter module, a low-dropout linear stabilization module, and an input voltage sensing module , a demodulator module and a USB charging module; the power input terminal is electrically connected to the USB charging module, and the operational amplifier module is respectively electrically connected to the power input module, the input voltage sensing module, the low-dropout linear stabilization module and the full-bridge inverter module. The MCU is electrically connected to the full-bridge inverter module, the input voltage sensing module and the demodulator module, respectively; the full-bridge inverter module is electrically connected to the wireless charging coil and the low-dropout linear stabilization module, respectively.

2. The wireless charging stand with USB charging function according to claim 1, wherein the USB charging module comprises a first USB charging circuit, and the first USB charging circuit comprises a chip U1, a resistor R40, R41, R45, capacitors C53, C54, C55, C56 and the first USB interface, the pin 1 of the chip U1, one end of the resistor R40, one end of the capacitor C54 and one end of the capacitor C53 are all connected to the power input module. The other end of the resistor R40 is respectively connected to the pin 2 of the chip U1 and one end of the resistor R45; the other end of the capacitor C54, the other end of the resistor C53, the other end of the resistor R45, the one end of the resistor R41, and the pin of the chip U1 4. One end of the capacitor C56, one end of the capacitor C55 and pin 4 of the first USB interface are all grounded, and the other end of the resistor R41 is connected to the pin 3 of the chip U1; the other end of the capacitor C56, the other end of the capacitor C55 The other end, the pin 8 of the chip U1 is connected to the pin 1 of the first USB interface; the pin 7 of the chip U1 is connected to the pin 2 of the first USB interface, and the pin 6 of the chip U1 is connected to the first USB interface. Pin 3 of a USB interface is connected.

3 . The wireless charging stand with a USB charging function according to claim 2 , wherein the chip U1 adopts a chip whose model is SY9602. 4 .

4. The wireless charging stand with USB charging function according to claim 1, wherein the USB charging module further comprises a second USB charging circuit, and the second USB charging circuit comprises a chip U2, a resistor R42 , R43, R46, capacitors C51, C52, C57, C58 and the second USB interface, the pin 1 of the chip U2, one end of the resistor R42, one end of the capacitor C51 and one end of the capacitor C52 are all connected to the power input module. The other end of the resistance R42 is respectively connected with the pin 2 of the chip U2 and one end of the resistance R46; Pin 4, one end of capacitor C57, one end of capacitor C58 and pin 4 of the second USB interface are all grounded, and the other end of the resistor R43 is connected to pin 3 of the chip U2; the other end of the capacitor C57, the capacitor C58 The other end, the pin 8 of the chip U2 is connected with the pin 1 of the second USB interface; the pin 7 of the chip U2 is connected with the pin 2 of the second USB interface, and the pin 6 of the chip U2 is connected to the pin 2 of the second USB interface. Pin 3 of the second USB interface is connected.

5 . The wireless charging stand with a USB charging function according to claim 4 , wherein the chip U2 adopts a chip with a model of SY9602. 6 .

6 . The wireless charging stand with USB charging function according to claim 1 , wherein the wireless charging stand further comprises a temperature sensing module, the temperature sensing module is connected to a full-bridge inverter and a demodulator. 7 . connect.

7 . The wireless charging stand with a USB charging function according to claim 1 , wherein the MCU adopts a chip with a model of NU1300. 8 .