CN110601302A - Charging and power conversion circuit and connector thereof - Google Patents
Charging and power conversion circuit and connector thereof Download PDFInfo
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- CN110601302A CN110601302A CN201910913991.5A CN201910913991A CN110601302A CN 110601302 A CN110601302 A CN 110601302A CN 201910913991 A CN201910913991 A CN 201910913991A CN 110601302 A CN110601302 A CN 110601302A
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 55
- 210000001503 joint Anatomy 0.000 claims abstract description 5
- 230000001960 triggered effect Effects 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 17
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 238000005299 abrasion Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 15
- 238000004891 communication Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/6608—Structural association with built-in electrical component with built-in single component
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/6608—Structural association with built-in electrical component with built-in single component
- H01R13/6616—Structural association with built-in electrical component with built-in single component with resistor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6675—Structural association with built-in electrical component with built-in electronic circuit with built-in power supply
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6683—Structural association with built-in electrical component with built-in electronic circuit with built-in sensor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
Abstract
The invention discloses a charging and power conversion circuit, which comprises: the charging and power-taking system comprises a terminal interface unit, a main control unit and a charging and power-taking unit which are electrically connected with each other, wherein the terminal interface unit is in butt joint with terminal equipment, and when external equipment is connected to the charging and power-taking unit, the main control unit is triggered to communicate with the terminal equipment through the terminal interface unit to inform the terminal equipment of converting a charging and power-taking mode, so that the external equipment charges or takes power for the terminal equipment; the external equipment comprises charging equipment and power-taking equipment. The invention also discloses a charging and power conversion connector comprising the charging and power conversion circuit, which is used for connecting the terminal equipment and the external equipment. The charging and power-taking conversion circuit and the connector thereof provided by the invention can convert the charging and power-taking mode of the terminal equipment according to the type of the external equipment, are convenient for users to use and reduce the abrasion of the interface of the terminal equipment.
Description
Technical Field
The invention relates to the field of charging and power taking devices, in particular to a charging and power taking conversion circuit and a connector thereof.
Background
With the rapid development of mobile internet, the number of mobile devices has reached an unprecedented scale. Mobile devices such as smart phones, bluetooth speakers, usb disks, mobile devices such as mobile phones and vehicle-mounted devices have become essential communication and entertainment tools for people's daily life, and peripheral accessory devices surrounding the mobile devices have also been developed rapidly.
At present, for a mobile device, there are two kinds of peripheral accessory devices connected thereto, one is a device having a charging patch or a charging plug accessory, and only a charging function of the mobile device, such as a charger, can be implemented; the other is equipment with an OTG patch cord/head accessory, which can only be used to power mobile equipment, such as a usb disk, a keyboard, a power-on flash mobile phone shell, etc. Therefore, when the mobile device is charged, the mobile device can be charged only by first pulling out the power-taking device from the port of the mobile device and then plugging in the charging wire, that is, in actual use, a user has to frequently pull out and plug in peripheral accessory devices on the mobile device to perform conversion of charging and power-taking functions, which is very inconvenient to use; frequent plugging and unplugging easily causes interface abrasion and causes damage to the adapter wire or the adapter.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the charging and power-taking conversion circuit and the connector thereof, which can automatically identify charging and power-taking equipment, change the charging and power-taking mode of terminal equipment, facilitate the use of a user and reduce the abrasion of the interface of the terminal equipment.
The charging and electricity-taking conversion circuit is characterized by comprising a terminal interface unit, a main control unit and a charging and electricity-taking unit which are electrically connected with each other, wherein the terminal interface unit is in butt joint with a terminal device, when an external device is connected to the charging and electricity-taking unit, the main control unit is triggered to communicate with the terminal device through the terminal interface unit, the terminal device is informed to convert a charging and electricity-taking mode, and the terminal device is charged or taken by the external device; the external equipment comprises charging equipment and power-taking equipment.
The charging and electricity-taking conversion connector is characterized by comprising the charging and electricity-taking conversion circuit, and further comprising a connector and a PCB (printed Circuit Board) which are connected through an FPC (Flexible printed Circuit), wherein one end of the connector is connected with the terminal equipment, and the other end of the connector is connected with the charging equipment; and a wiring terminal connected with the electricity taking equipment is led out of the PCB.
The charging and power-taking conversion circuit provided by the invention is used for connecting terminal equipment and external equipment, and the external equipment is divided into charging equipment and power-taking equipment. The charging and power-taking conversion circuit comprises a terminal interface unit, a main control unit and a charging and power-taking unit which are electrically connected with each other, wherein the terminal interface unit is in butt joint with the terminal equipment, and as the type of the terminal equipment mainly comprises an iOS system and an Android system, the interface definition of the terminal interface unit corresponds to the type of the terminal equipment. The main control unit is communicated with the terminal equipment through the terminal interface unit, and the charging and power taking unit is directly connected with the external equipment; when the external equipment is connected to the charging and power-taking unit, the iOS system or the Android system on the terminal equipment identifies the external equipment as the charging equipment or the power-taking equipment and sends an identification result to the main control unit in a signal mode, the main control unit receives the identification result and sends a charging and power-taking conversion signal to the terminal equipment according to the identification result so as to change a charging and power-taking module of the terminal equipment, namely, if the external equipment is the charging equipment, the main control unit informs the terminal equipment of converting into a charging mode, so that the external equipment can charge the terminal equipment through the charging and power-taking conversion circuit; if the external equipment is power-taking equipment, the main control unit informs the terminal equipment of converting into a power-taking mode, so that the external equipment can take power for the terminal equipment through the charging and power-taking conversion circuit; therefore, in the process of charging and taking the power of the terminal equipment, a user does not need to use a switching accessory only having a charging function or a power taking function, and the charging and power taking switching circuit with the charging and power taking functions can be realized, so that the trouble of equipping multiple switching accessories for the same terminal equipment is eliminated.
The charging and power conversion connector provided by the invention is used for connecting terminal equipment and external equipment; the charging and power conversion connector further comprises a connector, an FPC and a PCB on the basis of the charging and power conversion circuit, wherein one end of the connector is connected with a USB interface of the terminal equipment and can be suitable for the terminal equipment of an iOS or Android system, and the other end of the connector is connected with the charging equipment; the terminal interface unit of the charging and power conversion circuit is arranged in the connector, the main control unit and the charging and power unit of the charging and power conversion circuit are arranged on the PCB, and the PCB and the connector are connected through the FPC, so that various external connection modes of terminal equipment can be flexibly realized; and a wiring terminal connected with the electricity taking equipment is led out of the PCB. Therefore, after the connector is connected to the terminal equipment, no matter the charging equipment or the electricity-taking equipment, the charging or electricity-taking of the terminal equipment can be realized only by directly butting with the charging and electricity-taking conversion connector, the original special charging and electricity-taking switching accessory does not need to be frequently plugged and used alternately, the use is greatly facilitated for a user, and the abrasion of the interface of the terminal equipment is reduced.
Drawings
Fig. 1 is an application diagram of a charging-to-power conversion circuit according to an embodiment of the present invention;
fig. 2 is a schematic block diagram of a charging-power conversion circuit for an Android terminal device in the embodiment of the present invention;
fig. 3 is a circuit diagram of a charging-power conversion circuit for an Android terminal device in the embodiment of the present invention;
FIG. 4 is a circuit diagram of another implementation manner of the charging and discharging two-in-one circuit according to the embodiment of the present invention;
fig. 5 is a schematic block diagram of a charge-to-power conversion circuit for an iOS terminal device according to an embodiment of the present invention;
fig. 6 is a circuit diagram of a charge-to-power conversion circuit for an iOS terminal device according to an embodiment of the present invention;
FIG. 7 is a circuit diagram of another implementation of a second chip control circuit in an embodiment of the invention;
FIG. 8 is a circuit diagram of another implementation of a second chip control circuit in an embodiment of the invention;
fig. 9 is a schematic structural diagram of a charging-to-electric conversion connector according to an embodiment of the present invention;
fig. 10 is an exploded view of the charging-to-electric conversion connector according to the embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
An application scenario of a charging-to-power conversion circuit is shown in fig. 1. The terminal device is an iOS or Android system-based intelligent device, and includes but is not limited to a smart phone, a tablet computer, a bluetooth sound box, and the like. The external equipment is divided into charging equipment and electricity-taking equipment, and the charging equipment comprises equipment or devices which can charge the terminal equipment, such as a charger and a charger, but is not limited to a charger; the electricity-taking device comprises a USB flash disk, a keyboard, an electricity-taking flash mobile phone shell and other devices or devices for taking electricity from terminal equipment. The external equipment is connected to the terminal equipment through the charging and power conversion circuit.
The charging and power conversion circuit mainly comprises a terminal interface unit, a main control unit and a charging and power unit. The terminal interface unit is responsible for interfacing with the terminal device and has different interface definitions according to a system type (iOS or Android) of the terminal device, for example, if the terminal device is an iOS system device, the interface definition of the terminal interface matches with a lightning interface; if the terminal equipment is Android system equipment, the interface definition of the terminal interface is matched with the type-C interface standard; the main control unit is a control circuit mainly composed of a single chip microcomputer, carries out data communication with the terminal equipment through the terminal interface unit, sends data signals to the terminal equipment and receives the data signals sent by the terminal equipment, and meanwhile, is electrically connected with the charging and taking unit and can detect and control the charging and taking unit; the charging and electricity-taking unit is externally connected with external equipment, can be charging equipment or electricity-taking equipment, is internally connected with the main control unit and the terminal interface unit respectively, and when the external equipment performs charging and electricity-taking operation on the terminal equipment, current is transmitted among the terminal equipment, the terminal interface unit, the charging and electricity-taking unit and the external equipment.
The charging and power-taking mode refers to a charging mode or a power-taking mode of the terminal equipment. After a charging transfer line or a charging head accessory only having a charging function is connected through a USB port, an iOS or Android system on the terminal equipment automatically identifies the equipment and starts a charging mode; and when the device of the OTG patch cord/head accessory only having the electricity getting function is connected, the iOS or Android system on the terminal device can identify the device and start the electricity getting mode.
No matter the charging equipment or the electricity-taking equipment is used, when the charging and electricity-taking unit connected to the charging and electricity-taking conversion circuit is used, the iOS or Android system identifies the equipment and sends an identification signal to the main control unit, the main control unit sends a charging and electricity-taking conversion signal to the terminal equipment according to the identification result and informs the terminal equipment to change a charging and electricity-taking mode, so that the charging equipment or the electricity-taking equipment only needs to be in butt joint with the charging and electricity-taking unit of the charging and electricity-taking conversion circuit, and charging or electricity-taking of the terminal equipment can be achieved.
Due to the difference between the iOS and the Android systems, different standards are adopted in terms of hardware electrical characteristics, for example, the iOS system adopts a lightning interface-based data transmission and charging standard, and the Android system adopts a type-C-based data transmission and charging standard, so that the external interfaces of the two devices are inconsistent. Based on this, the specific implementation circuit provided by the charging and power conversion circuit also differs.
In an embodiment, a schematic block diagram of the charging-power conversion circuit for an Android system device is shown in fig. 2. The terminal interface unit is a type-C interface circuit; the main control unit is a first chip control circuit which is matched with the type-C interface circuit; the charging and electricity-taking unit comprises a charging and electricity-taking two-in-one circuit and a charging interface which are electrically connected.
The charging interface is used for being connected with charging equipment; the charging and electricity-taking two-in-one circuit has the functions of charging and electricity-taking, and during charging, the charging equipment is connected to the charging and electricity-taking two-in-one circuit through the charging interface; when electricity is got, the electricity getting equipment can be directly connected with the charging and getting two-in-one circuit. The first chip control circuit can change the output of the charging and electricity two-in-one circuit by performing pull-up or pull-down control on the resistor in the charging and electricity two-in-one circuit, and then the charging and electricity two-in-one circuit sends a signal to the terminal equipment through a type-C interface, so that the terminal equipment converts the charging and electricity mode.
Specifically, for an Android system device, a circuit diagram of the charging-power conversion circuit is shown in fig. 3. The type-C interface circuit J1 defines a corresponding interface for a type-C standard interface pin, A1 to A12, B1 to B12 are the numbers of the type-C internal pin positions, and the total number is 24 pins, but in actual use, a plurality of pins required can be selectively used; d1, D2, PNP, etc. are all materials or names of electronic components labeled according to circuit diagram standards, for example, PNP is a triode, and MOS transistors can also be used, and are not described herein again.
It should be noted that the pin VDD represents an input, the pin VCC represents an output, the pins a5 and B5 in the J1 correspond to the pins CC1 and CC2 in the type-C standard, and the pins CC1 and CC2 are used for selectively determining the master-slave relationship between the terminal device and the external device, and determining whether the terminal device is in the power-taking mode or the charging mode. The working process is as follows: when the charging device is connected, the VDD in the charging and electricity-taking two-in-one circuit has voltage, and meanwhile, the VIO can also output the voltage; the voltage values of pins CC1 and CC2 are changed through pull-up resistors R12 and R13, so that the terminal equipment can recognize that the voltages of pins CC1 and CC2 in the type-C interface are changed; at this time, the terminal device will switch to the charging mode, and the charging device charges the terminal device through VDD via transistor Q1 and through pins a4, B4, a9, and B9 of J1. When the power-taking equipment is connected, the pull-down resistors R15 and R16 in the charging and power-taking two-in-one circuit are connected with a GND ground wire, at the moment, the voltages of output lines CC1 and CC2 are pulled down, and the terminal equipment outputs power to the power-taking equipment through A4, A9, B4 and B9 of J1 when recognizing that either or both of the voltages of CC1 and CC2 are pulled down.
Preferably, a voltage stabilizing circuit is further connected between the charging and power-taking two-in-one circuit and the power-taking equipment. The voltage stabilizing circuit has two functions, one is capable of supplying power for the first chip control circuit, and the other is capable of supplying power for power-taking equipment or other application circuits connected to the charging and power-taking two-in-one circuit. As shown in fig. 3, the voltage regulator includes an LDO, capacitors C1 and C2, an output VCC of the voltage regulator is connected to the power-taking device to provide power for the power-taking device, and a V of the voltage regulator is connected to a VDD pin of a chip U1 to supply power to the U1.
Preferably, a charging detection circuit is arranged between the first chip control circuit and the charging interface. The charge detection circuit may detect a voltage value of the charging device. Taking a charger as an example, chargers with different specifications can provide different voltage values such as 5V, 9V or 20V, and the charging detection circuit sends the detected voltage value to the first chip control circuit to prevent the problem of overcharging. As shown in fig. 3, the output pin VDD _ TEST of the charge detection circuit is connected to the P2.4 pin of the first chip control circuit U1.
In addition, another implementation of the charging and power two-in-one circuit is shown in fig. 4. The two resistors are respectively R14 and R17, and CC1_ ON and CC2_ ON are respectively connected with a pin P1.3 and a pin P1.4 of the first chip control circuit U1, and the working process is as follows: when a charging device is connected, the VDD has voltage, the voltage values of CC1_ ON and CC2_ ON output voltages are changed through pull resistors R14 and R17, the voltage values of output lines CC1 and CC2 are changed, the terminal device recognizes that the voltage values of CC1 and CC2 are changed, the terminal device is switched into a charging mode, the charging device passes through the VDD, goes through a triode Q1 to VCC, and then enters pins A4, A9, B4 and B9 of the terminal device to be charged; when the power-taking equipment is connected, the U1 controls CC1_ ON and CC2_ ON to be at low level, pulls resistors R14 and R17, pulls the voltage of CC1 and CC2 low at the moment, and when the terminal equipment recognizes that one or two of the voltage of CC1 and CC2 are pulled low, the power is output to the power-taking equipment through pins A4, A9, B4 and B9. Compared with the implementation mode in fig. 3, the second mode of charging the two-in-one circuit can reduce the number of resistors and further reduce the cost.
A schematic block diagram of the charge-to-power conversion circuit for the iOS system device is shown in fig. 5. The terminal interface unit is a lightning plug circuit; the main control unit is a second chip control circuit matched with the lightning plug circuit for use, and the second chip control circuit comprises three implementation modes, namely a mode one, a mode two and a mode three; the charging and power-obtaining unit comprises a charging interface output circuit and a power-obtaining output interface circuit, wherein the charging interface output circuit is used for being connected with charging equipment, the power-obtaining output interface circuit is used for being connected with external equipment, and the second chip control circuit informs the terminal equipment of converting a charging and power-obtaining mode according to an input voltage value detected from the charging interface output circuit.
Specifically, a circuit diagram of the charge-to-power conversion circuit for the iOS system apparatus is shown in fig. 6. Pins 1 to 16 of the lightning plug circuit J2 correspond to communication protocol signal pins of the iOS system, respectively, wherein a pin 1 or a pin 5 in the iOS system device corresponding to a pin 3V3A, VBUS is a 5V output pin, and can supply power to the power-taking device; 3V3B is an iOS system 3.3V to 4.2V power output pin, and corresponds to an internal 1 st pin or a5 th pin of the iOS system device; d +2 and D-2 are signal pins of the USB, namely communication protocol pins; and DATA is a mobile phone communication protocol pin.
In one implementation manner of the second chip control circuit, the first control IC is U2; the pin 3V3A of U2 is connected with the pin 9 of J2, and the pin ID-H of U2 is connected with the charging interface output circuit P2. The working process is as follows: on one hand, the U2 judges whether the charging equipment is connected to the charging interface output circuit by detecting whether the voltage of the ID-H pin is 5V, and on the other hand, the U2 is connected with the Lightning plug circuit J2 through the 3V3A pin and communicates with the terminal equipment, so that the iOS system controls the terminal equipment to perform mutual conversion between a host module and a slave mode, and the charging function and the power taking function are achieved. When the charging device is connected, the charging interface output circuit P2 receives the 5V voltage from the charging device and charges the terminal device through the VBUS pin of the Lightning plug circuit. Preferably, the lighting plug circuit is connected with a voltage divider circuit, and the voltage divider circuit can determine the output current. When the power-taking device is connected, the terminal device outputs 3.3V-4.2V voltage to the power-taking interface output circuit P3 through pin 3V3B, and the power-taking device obtains power from pin 2 of P3.
The second implementation of the second chip control circuit is shown in fig. 7. Wherein the second control IC is U3. The second implementation manner of the second chip control circuit is different from the first implementation manner in that U3 is connected to the 2 nd pin, the 3 rd pin and the 9 th pin of the lightning plug circuit J2 through three pins, i.e., D-2, D +2 and DATA; the VCC pin of U3 is connected with getting electric interface output circuit for IOS system control terminal equipment carries out the mode switch, realizes charging and the function of getting electricity. Compared with the first mode, the second mode can also realize the charging and power taking functions, but the pins connected with the lightning plug circuit are different due to the adoption of different control ICs. In the actual production process, various implementation modes are beneficial to the optimization of production material preparation and production cost.
Fig. 8 shows a third implementation manner of the second chip control circuit. The third control IC is U5, and transistors and change circuits are added on the basis of the first and second modes. The 6 th pin 3V3A of the U5 is connected with the 9 th pin of Lightning, and is in charging and electricity-taking communication with terminal equipment; the 3 rd pin ID-H of U5 is connected with P2; the 4 th MOS pin of U5 is connected to a change circuit through a transistor Q4, and the change circuit is connected to the 4 th or 12 th pin of J2. When charging is needed, the ID-H pin triggers to work, the MOS pin of U5 controls the transistors Q4 and Q3 to be conducted, so that 5V voltage of the charging equipment flows to the change circuit, and the terminal equipment is charged through the Lightning plug circuit. Based on the third implementation mode of the second chip control circuit, the Lightning public protocol circuit can be cancelled, and the production and manufacturing cost is saved. The Lightning public header protocol circuit is for an iOS system and is used for a standard communication chip inside a data line/charging line, and if the circuit is not integrated inside the data line/charging line, the lighting public header protocol circuit needs to be additionally configured.
Further, in an embodiment, a schematic structural diagram of a charging-to-electric conversion adaptor is shown in fig. 9 and 10. Wherein, the FPC (1) is used for connecting a connector (3) and a PCB (2); one end of the connector is used for being connected with the terminal equipment, and the other end of the connector is connected with the charging equipment; the PCB is provided with a wiring terminal (4) connected with the electricity taking equipment in a leading-out mode, the electricity taking equipment only needs to be connected with the wiring terminal, electricity can be taken from the terminal equipment, and the implementation mode of the wiring terminal is not limited specifically. Taking a smart phone as an example, when the smart phone is used, one end of the connector is connected with the smart phone through the USB port, the other end of the connector is connected with the charger baby, and the charger baby can charge the smart phone; meanwhile, the power taking equipment is connected with a wiring terminal led out from the PCB, and power can be supplied from the mobile phone.
The connector can comprise a terminal interface (31) and a peripheral interface (32), and the terminal interface can be divided into interfaces suitable for type-C and lightning interfaces; the peripheral interface can be the female seat of type-C, lighting or magnetism inhale contact (5), is suitable for the charging equipment connection of various different interfaces.
Preferably, magnetism is inhaled the contact and also can be set up the back or the side at the PCB board, and battery charging outfit only need adsorb and inhale and can charge to terminal equipment on the contact, makes things convenient for battery charging outfit to charge convenient to use through multiple angle to terminal equipment.
The charging/power conversion circuit of the present invention is described above for helping understanding of the present invention, but the implementation manner of the present invention is not limited by the above-mentioned embodiments, and any changes, modifications, substitutions, combinations, and simplifications that do not depart from the principle of the present invention shall be equivalent replacement manners, and shall be included in the protection scope of the present invention.
Claims (10)
1. The charging and electricity-taking conversion circuit is characterized by comprising a terminal interface unit, a main control unit and a charging and electricity-taking unit which are electrically connected with each other, wherein the terminal interface unit is in butt joint with a terminal device, when an external device is connected to the charging and electricity-taking unit, the main control unit is triggered to communicate with the terminal device through the terminal interface unit, the terminal device is informed to convert a charging and electricity-taking mode, and the terminal device is charged or taken by the external device; the external equipment comprises charging equipment and power-taking equipment.
2. The charging and power-taking conversion circuit according to claim 1, wherein the terminal interface unit is a type-C interface circuit, the main control unit is a first chip control circuit, and the charging and power-taking unit comprises a charging and power-taking two-in-one circuit and a charging interface which are electrically connected, wherein the charging interface is used for being connected with the charging equipment, and the charging and power-taking two-in-one circuit can be further connected with the power-taking equipment; the first chip control circuit is used for informing the terminal equipment of converting the charging and electricity-taking mode by controlling the resistance value in the charging and electricity-taking two-in-one circuit.
3. The charging-power conversion circuit according to claim 2, wherein the charging-power two-in-one circuit comprises at least 1 pull-up resistor and at least 1 pull-down resistor, 1 output line is led out between the pull-up resistor and the pull-down resistor, and the 1 output line is connected with a first standard pin or a second standard pin of the type-C interface circuit; or, it draws the resistance to charge two unification circuits of electricity and include that 1 at least draws the resistance, draw the resistance one end with type-C interface circuit's first standard pin or second standard pin are connected, draw the resistance the other end with chip control circuit connects.
4. The charging and power-taking conversion circuit according to claim 2, wherein a voltage regulator circuit is further connected between the charging and power-taking two-in-one circuit and the power-taking device, and the voltage regulator circuit is used for supplying power to the first chip control circuit and the power-taking device.
5. The charging-to-power conversion circuit as claimed in claim 3, wherein a charging detection circuit is further connected between the charging interface and the first chip control circuit, and the charging detection circuit is configured to detect a voltage value of the charging device and send the voltage value to the first chip control circuit.
6. The charging and power-taking conversion circuit according to claim 1, wherein the terminal interface unit is a lightning plug circuit, the main control unit is a second chip control circuit, and the charging and power-taking unit comprises a charging interface output circuit and a power-taking output interface circuit, wherein the charging interface output circuit is used for being connected with the charging device, the power-taking output interface circuit is used for being connected with the power-taking device, and when an external device is connected to the charging and power-taking unit, the second chip control circuit is triggered to communicate with the terminal device through the lightning plug circuit to inform the terminal device of converting the charging and power-taking mode.
7. The charging and power-taking conversion circuit according to claim 6, wherein a voltage dividing circuit is connected to the lighting plug circuit, and the voltage dividing circuit is connected to the power-taking output interface circuit and is configured to set an output current of the power-taking output interface circuit.
8. The charging and power conversion circuit according to claim 6, wherein the second chip control circuit comprises a first control IC, and the first control IC is connected with the lighting plug circuit through one pin and connected with the charging interface output circuit through another pin; or the second chip control circuit comprises a second control IC, and the second control IC is connected with the lightning plug circuit through three pins; and is connected with the power-taking interface output circuit through another pin; or, the second chip control circuit includes a third control IC, two pins of the third control IC are respectively connected to the lightning plug circuit and the charging interface output circuit, and another pin is connected to the lightning plug circuit through at least 1 transistor.
9. A charging-power conversion connector, comprising the charging-power conversion circuit according to any one of claims 1 to 8, and further comprising a connector and a PCB board connected through an FPC, wherein one end of the connector is connected to the terminal device, and the other end of the connector is connected to the charging device; and a wiring terminal connected with the electricity taking equipment is led out of the PCB.
10. The charging-to-power conversion connector according to claim 9, wherein the connector comprises a terminal interface and a peripheral interface, the terminal interface being configured to connect with the terminal device; the peripheral interface is any one of type-C female seat, lighting female seat and magnetic attraction contact and is used for being connected with the charging equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910913991.5A CN110601302A (en) | 2019-09-25 | 2019-09-25 | Charging and power conversion circuit and connector thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910913991.5A CN110601302A (en) | 2019-09-25 | 2019-09-25 | Charging and power conversion circuit and connector thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110601302A true CN110601302A (en) | 2019-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910913991.5A Pending CN110601302A (en) | 2019-09-25 | 2019-09-25 | Charging and power conversion circuit and connector thereof |
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| Country | Link |
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| CN (1) | CN110601302A (en) |
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| CN107632949A (en) * | 2017-09-30 | 2018-01-26 | 广东欧珀移动通信有限公司 | Data wire identification circuit, method and terminal |
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| CN210577869U (en) * | 2019-09-25 | 2020-05-19 | 陈涛 | Charging and power conversion circuit and connector thereof |
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- 2019-09-25 CN CN201910913991.5A patent/CN110601302A/en active Pending
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| CN203813481U (en) * | 2014-04-11 | 2014-09-03 | 深圳市哈里通实业有限公司 | Mobile power source capable of automatically recognizing terminals to charge terminals and adapting to OTG systems of terminals |
| CN106877103A (en) * | 2017-01-03 | 2017-06-20 | 努比亚技术有限公司 | A kind of method and adapter for realizing circuit switching |
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