CN214410104U - NFC unlocking circuit of electric bicycle - Google Patents
NFC unlocking circuit of electric bicycle Download PDFInfo
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- CN214410104U CN214410104U CN202120466730.6U CN202120466730U CN214410104U CN 214410104 U CN214410104 U CN 214410104U CN 202120466730 U CN202120466730 U CN 202120466730U CN 214410104 U CN214410104 U CN 214410104U
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- 239000003990 capacitor Substances 0.000 claims description 30
- 230000006698 induction Effects 0.000 claims description 7
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 239000004065 semiconductor Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 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
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Abstract
The utility model discloses an electric bicycle's NFC unblock circuit relates to the electric bicycle field, include: master control chip, electric door lock control circuit, NFC response chip and power supply circuit, power supply circuit be master control chip, electric door lock control circuit with the electricity door lock control circuit power supply, master control chip is connected to the electricity door lock control circuit with NFC response chip, NFC response chip acquires the relevant information of outside NFC equipment and transmits extremely master control chip, electricity door lock control circuit includes a plurality of resistance, a plurality of diode, two electric capacity, PMOS pipe and two triodes, through this NFC unblock circuit, no longer need carry the great physical key of volume again, carry NFC equipment such as general NFC cell-phone can, it is more convenient to use.
Description
Technical Field
The utility model belongs to the technical field of electric bicycle and specifically relates to an electric bicycle's NFC unblock circuit.
Background
Electric bicycle has very high rate of utilization and popularity in china, it needs the user to unblock through the key mostly to be the power-on mode of electric bicycle on the market at present, traditional physics key has certain limitation when using, because the key is that the range through the key bit is unblock, consequently the problem of duplicate key appears easily, in case the condition that the key loses takes place simultaneously, the user is difficult to carry out electric bicycle's unblock on the one hand, cause inconvenience for the user, on the other hand also can lead to electric bicycle's losing.
SUMMERY OF THE UTILITY MODEL
The inventor provides an electric bicycle's NFC unblock circuit to above-mentioned problem and technical demand, the technical scheme of the utility model as follows:
an NFC unlocking circuit of an electric bicycle, comprising: the NFC induction chip acquires relevant information of external NFC equipment and transmits the information to the main control chip, the electric door lock control circuit comprises a plurality of resistors, a plurality of diodes, two capacitors, a PMOS (P-channel metal oxide semiconductor) tube and two triodes, the anode of the second diode is respectively connected to the source electrode of the power circuit and the PMOS tube, the cathode of the third diode, one end of the third resistor and one end of the fourth capacitor, the anode of the third diode is respectively connected to the other end of the third resistor, the other end of the fourth capacitor, the grid electrode of the PMOS tube and one end of the fourth resistor, and the collector electrode of the first triode is connected to the other end of the fourth resistor, The emitter is grounded, and the base is connected to the I2C clock end of the main control chip through a fifth resistor;
the drain electrode of the PMOS tube is connected to the anode of a fourth diode, the cathode of the fourth diode is connected to the anode of a fifth diode and one end of a sixth resistor, the other end of the sixth resistor is connected to the configuration clock output end of the main control chip, one end of a seventh resistor and one end of a fifth capacitor, and the other end of the seventh resistor and the other end of the fifth capacitor are grounded;
the negative electrode of the fifth diode is connected to the collector of the second triode through an eighth resistor, the common end of the emitter of the second triode and the tenth resistor is connected to the negative electrode of the second diode, the common end of the ninth resistor and the tenth resistor is connected to the base of the second triode, the other end of the ninth resistor is connected to the collector of the third triode, and the emitter of the third triode is grounded, and the base of the third triode is connected to the I2C data end of the main control chip through an eleventh resistor.
The further technical scheme is that the power supply circuit comprises a resistance circuit and a power supply output circuit, and the positive pole of the battery of the electric bicycle is connected to the power supply output circuit through the resistance circuit.
The further technical scheme is that the resistance circuit comprises two resistors, one end of a twelfth resistor and one end of a thirteenth resistor are connected to the positive electrode of a battery of the electric bicycle, and the other end of the twelfth resistor and the other end of the thirteenth resistor are connected to the power output circuit.
The further technical proposal is that the power output circuit comprises two diodes, two resistors, two triodes and three capacitors, the common end of the collector electrodes of the fourteenth resistor and the fourth triode is connected to the resistor circuit, the resistor circuit is also connected to the cathode of a sixth diode, the other end of the fourteenth resistor is connected to the emitter of the fifth triode, the base electrode of the fifth triode is connected to the anode of the sixth diode, the base electrode of the fifth triode is also grounded through a fifteenth resistor, the common end of the base electrode of the fourth triode and the collector electrode of the fifth triode is respectively connected to the cathode of a seventh diode and one end of a sixth capacitor, the positive electrode of the seventh diode and the other end of the sixth capacitor are grounded, the emitter of the fourth triode is grounded through the seventh capacitor, and the emitter of the fourth triode is grounded through the eighth capacitor.
The NFC sensing chip is connected to a second analog input end of the main control chip.
The further technical scheme is that the main control chip adopts an STM8 series single chip microcomputer.
The utility model has the beneficial technical effects that: the physical key with larger volume is not needed to be carried, and the NFC equipment such as a universal NFC mobile phone and the like can be carried, so that the use is more convenient; the information is rapidly transmitted through the NFC communication circuit, and the main control chip can conveniently acquire related information.
Drawings
Fig. 1 is a schematic structural diagram of an NFC unlocking circuit according to the present application.
Fig. 2 is a circuit schematic diagram of the main control chip of the present application.
Fig. 3 is a schematic diagram of an electric door lock control circuit of the present application.
Fig. 4 is a circuit schematic of a power supply circuit of the present application.
Detailed Description
The following describes the embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1, an NFC unlocking circuit of an electric bicycle includes: the NFC induction control circuit comprises a master control chip, an electric door lock control circuit, an NFC induction chip and a power circuit, wherein the master control chip is used for controlling the whole circuit, the power circuit provides 5V power supply voltage for supplying power to the master control chip, the NFC induction chip and the electric door lock control circuit, and the master control chip is connected to the electric door lock control circuit and the NFC induction chip.
As shown in fig. 2, the main control chip adopts an STM8 series single chip microcomputer, and the main control chip comprises a plurality of ports: the I2C clock end LOCKC, the configuration clock output end LOCK, the I2C data end ACC and the second analog input end sigin respectively correspond to the 12 th port, the 14 th port, the 11 th port and the 19 th port on the main control chip.
The NFC sensing chip may be a commercially available chip, for example, the model is WS1850S, and is not limited herein, and the NFC sensing chip may acquire information of an NFC device in a hand of a user, where the NFC device includes an NFC mobile phone, an NFC bracelet, a UID card, and a CUID card.
The NFC induction chip is connected to a second analog input end sign of the main control chip and used as signal input of the NFC equipment.
As shown in fig. 3, after the main control chip obtains external NFC information through the NFC sensing chip, the electric door lock control circuit controls the power lock of the electric bicycle to achieve control of the power lock, the electric door lock control circuit includes a plurality of resistors, a plurality of diodes, a plurality of capacitors, a PMOS transistor and two triodes, the first triode Q1 and the third triode Q3 are NPN triodes, the second triode Q2 is a PNP triode, the anode of the second diode D2 is connected to the power circuit, the source of the PMOS transistor M1, the cathode of the third diode D3, one end of the third resistor R3 and one end of the fourth capacitor C4, the anode of the third diode D3 is connected to the other end of the third resistor R3, the other end of the fourth capacitor D4, the gate of the PMOS transistor M1 and one end of the fourth resistor R4, the collector of the first triode Q1 is connected to the other end of the fourth resistor R4, the emitter of the fourth resistor R4, and the ground, The base electrode is connected to an I2C clock end LOCKC of the main control chip through a fifth resistor R5;
the drain of the PMOS transistor M1 is connected to the anode of the fourth diode D4, the cathode of the fourth diode D4 is connected to the anode of the fifth diode D5 and one end of the sixth resistor R6, the other end of the sixth resistor R6 is connected to the configuration clock output LOCK of the main control chip, one end of the seventh resistor R7 and one end of the fifth capacitor C5, and the other end of the seventh resistor R7 and the other end of the fifth capacitor C5 are grounded;
the common terminal of the emitter of the second transistor Q2 and the eighth resistor R8 is connected to the cathode of the second diode D2, the cathode of the fifth diode D5 is connected to the collector of the second transistor Q2 through the eighth resistor R8, the common terminal of the ninth resistor R9 and the tenth resistor R10 is connected to the base of the second transistor Q2, the base of the second transistor Q2 is connected to the collector of the third transistor Q3 through the ninth resistor R9, and the emitter and the base of the third transistor Q3 are connected to the data terminal ACC of I2C of the master chip through the eleventh resistor R11.
As shown in fig. 4, the power supply circuit includes a resistance circuit and a power supply output circuit, and the positive electrode of the battery of the electric bicycle is connected to the power supply output circuit through the resistance circuit.
The resistor circuit comprises two resistors, one end of a twelfth resistor R12 and one end of a thirteenth resistor R13 are connected to the battery anode B of the electric bicycle, and the other end of the twelfth resistor R12 and the other end of the thirteenth resistor R13 are connected to the input end of the power output circuit.
The power output circuit comprises two diodes, two resistors, two triodes and three capacitors, the fourth triode is an NPN triode, the fifth triode is a PNP triode, the common end of the collector electrodes of a fourteenth resistor R14 and a fourth triode Q4 is connected to the resistor circuit, the resistor circuit is also connected to the cathode electrode of a sixth diode D6, the other end of a fourteenth resistor R14 is connected to the emitter electrode of a fifth triode Q5, the base electrode of a fifth triode Q5 is connected to the anode electrode of a sixth diode D6, the base electrode of the fifth triode Q5 is also grounded through a fifteenth resistor R15, the base electrode of a fourth triode Q4 and the common end of the collector electrode of the fifth triode Q5 are respectively connected to the cathode electrode of a seventh diode D7 and one end of a sixth capacitor C6, the anode electrode of the seventh diode D7 and the other end of the sixth capacitor C6 are grounded, the emitter electrode of the fourth triode Q4 is grounded through a seventh capacitor D7, the emitter of the fourth transistor Q4 is also coupled to ground through an eighth capacitor C8.
What has been described above is only a preferred embodiment of the present application, and the present invention is not limited to the above embodiments. It is to be understood that other modifications and variations directly derivable or suggested by those skilled in the art without departing from the spirit and scope of the present invention are to be considered as included within the scope of the present invention.
Claims (6)
1. An NFC unlocking circuit of an electric bicycle, comprising: the NFC induction chip acquires relevant information of external NFC equipment and transmits the information to the main control chip, the electric door lock control circuit comprises a plurality of resistors, a plurality of diodes, two capacitors, a PMOS (P-channel metal oxide semiconductor) tube and two triodes, the anode of the second diode is respectively connected to the source electrode of the power circuit and the PMOS tube, the cathode of the third diode, one end of the third resistor and one end of the fourth capacitor, the anode of the third diode is respectively connected to the other end of the third resistor, the other end of the fourth capacitor, the grid electrode of the PMOS tube and one end of the fourth resistor, and the collector electrode of the first triode is connected to the other end of the fourth resistor, The emitter is grounded, and the base is connected to the I2C clock end of the main control chip through a fifth resistor;
the drain electrode of the PMOS tube is connected to the anode of a fourth diode, the cathode of the fourth diode is connected to the anode of a fifth diode and one end of a sixth resistor, the other end of the sixth resistor is connected to the configuration clock output end of the main control chip, one end of a seventh resistor and one end of a fifth capacitor, and the other end of the seventh resistor and the other end of the fifth capacitor are grounded;
the negative electrode of the fifth diode is connected to the collector of the second triode through an eighth resistor, the common end of the emitter of the second triode and the tenth resistor is connected to the negative electrode of the second diode, the common end of the ninth resistor and the tenth resistor is connected to the base of the second triode, the other end of the ninth resistor is connected to the collector of the third triode, and the emitter of the third triode is grounded, and the base of the third triode is connected to the I2C data end of the main control chip through an eleventh resistor.
2. The NFC unlocking circuit of claim 1, wherein the power circuit comprises a resistor circuit and a power output circuit, and wherein a battery anode of the electric bicycle is connected to the power output circuit through the resistor circuit.
3. The NFC unlocking circuit of claim 2, wherein the resistor circuit comprises two resistors, one end of a twelfth resistor and one end of a thirteenth resistor are connected to a battery anode of the electric bicycle, and the other end of the twelfth resistor and the other end of the thirteenth resistor are connected to the power output circuit.
4. The NFC unlocking circuit according to claim 2, wherein the power output circuit comprises two diodes, two resistors, two transistors and three capacitors, a common terminal of collectors of a fourteenth resistor and a fourth transistor is connected to the resistor circuit, the resistor circuit is further connected to a cathode of a sixth diode, the other terminal of the fourteenth resistor is connected to an emitter of a fifth transistor, a base of the fifth transistor is connected to an anode of the sixth diode, the base of the fifth transistor is further grounded through a fifteenth resistor, a common terminal of a base of the fourth transistor and a collector of the fifth transistor is respectively connected to a cathode of a seventh diode and one terminal of a sixth capacitor, an anode of the seventh diode and the other terminal of the sixth capacitor are grounded, and an emitter of the fourth transistor is grounded through a seventh capacitor, and the emitter of the fourth triode is also grounded through an eighth capacitor.
5. The NFC unlocking circuit of claim 1, wherein the NFC sensing chip is connected to a second analog input of the master chip.
6. The NFC unlocking circuit according to any one of claims 1 to 5, wherein the master control chip adopts an STM8 series single chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120466730.6U CN214410104U (en) | 2021-03-03 | 2021-03-03 | NFC unlocking circuit of electric bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120466730.6U CN214410104U (en) | 2021-03-03 | 2021-03-03 | NFC unlocking circuit of electric bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214410104U true CN214410104U (en) | 2021-10-15 |
Family
ID=78027535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120466730.6U Active CN214410104U (en) | 2021-03-03 | 2021-03-03 | NFC unlocking circuit of electric bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214410104U (en) |
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2021
- 2021-03-03 CN CN202120466730.6U patent/CN214410104U/en active Active
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Effective date of registration: 20231228 Address after: No. 3-1, 3-2, Dongsheng Road, Anzhen Street, Xishan District, Wuxi City, Jiangsu Province, 214000 Patentee after: Tailing Technology Co.,Ltd. Address before: No.3 Dongsheng Road, anzhen street, Wuxi City, Jiangsu Province Patentee before: Taiwan bell Technology (Jiangsu) Co.,Ltd. |