CN211046528U - Full-automatic-power-off Bluetooth headset control circuit and TWS Bluetooth headset system - Google Patents
Full-automatic-power-off Bluetooth headset control circuit and TWS Bluetooth headset system Download PDFInfo
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- CN211046528U CN211046528U CN201922306441.5U CN201922306441U CN211046528U CN 211046528 U CN211046528 U CN 211046528U CN 201922306441 U CN201922306441 U CN 201922306441U CN 211046528 U CN211046528 U CN 211046528U
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Abstract
The utility model discloses a be full of TWS bluetooth headset control circuit of back auto-power-off, control circuit includes: the Bluetooth module comprises a positive input interface, a GND interface, an MOS tube Q1 and a triode Q2, wherein the source electrode of the MOS tube Q1 is connected with the positive input interface, the drain electrode of the MOS tube Q1 is connected with a VUSB port of the Bluetooth module, the grid electrode of the MOS tube Q1 is connected with a resistor R7, the other end of the resistor R7 is connected with the collector electrode of the triode Q2, the emitter electrode of the triode Q2 is grounded, the base electrode of the triode Q2 is connected with the positive input interface through a capacitor C17, and the base electrode of the triode Q2 is connected with a PWREN port of the Bluetooth module; the utility model discloses can realize being connected with the box that charges when the box that charges is full of automatic disconnection bluetooth headset after being charged to the bluetooth headset of placing in it, can reduce the power consumption to the box that charges, improve the time of endurance of the box that charges, improve the live time, let the consumer have good use experience.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a TWS bluetooth headset's control circuit specifically is full of TWS bluetooth headset control circuit of back auto-power-off.
[ background of the invention ]
The TWS Bluetooth headset system comprises a rechargeable charging box and a TWS Bluetooth headset, wherein the charging box is used for accommodating and charging the TWS Bluetooth headset; when the charging box charges for the TWS Bluetooth headset, the Bluetooth chip needs to manage charging (namely the Bluetooth chip is in a starting state and consumes energy), and after the charging box charges for the TWS Bluetooth headset in the prior art, the Bluetooth chip is still in the starting state, so that the power consumption can be increased, and the endurance time of the charging box is reduced.
The utility model discloses it is not enough to solve prior art and research and propose promptly.
[ Utility model ] content
The to-be-solved technical problem of the utility model is to provide a TWS bluetooth headset control circuit who is full of back auto-power-off, can realize being full of the automatic disconnection bluetooth headset after the electricity and being connected of the box that charges, can reduce the consumption to the box that charges, improves the time of endurance of the box that charges.
In order to solve the technical problem, the control circuit of the TWS Bluetooth headset capable of automatically powering off after being fully charged comprises a Bluetooth module, a touch module, a charging module, a loudspeaker and a battery, wherein the battery is used for supplying power to the Bluetooth module and the touch module, the charging module comprises a positive input interface, a GND interface, a MOS tube Q1 and a triode Q2, the source electrode of the MOS tube Q1 is connected with the positive input interface, the drain electrode of the MOS tube Q1 is connected with a VUSB port of the Bluetooth module, the grid electrode of the MOS tube Q1 is connected with a resistor R7, the other end of the resistor R7 is connected with the collector electrode of the triode Q2, the emitter electrode of the triode Q2 is grounded, the base electrode of the triode Q2 is connected with the VUSB input interface through a capacitor C5, the base electrode of the triode Q2 is connected with a PWREN port of the Bluetooth module, the base electrode of the triode Q2 is also grounded through a resistor R9 connected in series, the base electrode of the triode Q2 is connected with the positive input interface of the MOSFET Q17 and the positive resistor RKR 8658, the drain electrode of the DAC 1 is connected with a drain electrode of the Bluetooth module, the DAC 368653, and the DAC 368653, the drain electrode of the DAC resistor RKR 1 is connected with the DAC 368653, the DAC 1, the DAC resistor RKR 1, and the DAC 1, the DAC resistor RKR 1 is connected with the DAC module.
According to the TWS Bluetooth headset control circuit capable of automatically powering off after being fully charged, the resistance value of the resistor R4 is 510K omega, the resistance value of the resistor R5 is 270K omega, the resistor R5 is grounded, and the resistor R4 is connected with the positive input interface.
According to the TWS Bluetooth headset control circuit capable of automatically powering off after being fully charged, the resistance value of the resistor R6 is 1M omega, and the resistance value of the resistor R7 is 1K omega.
According to the TWS Bluetooth headset control circuit capable of automatically powering off after being fully charged, the resistance value of the resistor R8 is 100K omega, and the resistance value of the resistor R9 is 39K omega.
The TWS bluetooth headset control circuit capable of automatically powering off after being fully charged as described above, the touch module includes a touch chip and a touch pad, a VDD port of the touch chip is connected to the positive electrode of the battery, a TOG port and a VSS port of the touch chip are grounded, a Q port of the touch chip is connected to a PWRKEY port of the bluetooth module, an I port of the touch chip is connected to the touch pad, and the I port of the touch chip is grounded through a capacitor C15 connected in series.
In the TWS bluetooth headset control circuit capable of automatically powering off after being fully charged, the model of the touch chip is TTP233D _ GB 6.
The TWS Bluetooth headset control circuit capable of automatically powering off after being fully charged comprises a Bluetooth chip, wherein the Bluetooth chip is BT 8802A.
The utility model discloses a TWS bluetooth headset system, including bluetooth headset and with bluetooth headset assorted box that charges, bluetooth headset contain control circuit, the box that charges have with bluetooth headset's anodal input interface connection's anodal output interface, the box that charges have with bluetooth headset's GND interface connection's GND interface.
Compared with the prior art, the utility model has the advantages of as follows:
1. the utility model discloses can realize being connected with the box that charges when the box that charges is full of automatic disconnection bluetooth headset after being charged to the bluetooth headset of placing in it, can reduce the power consumption to the box that charges, improve the time of endurance of the box that charges, improve the live time, let the consumer have good use experience.
2. The utility model discloses a bluetooth headset's positive pole input interface and GND interface and the positive pole output interface and the GND interface switch-on of box that charges after, the electric capacity C17 of the module that charges through resistance R9, when resistance R9's voltage reaches 0.5 ~ 0.7V, triode Q2 can switch on, and then draw MOS pipe Q1's G utmost point low, make MOS pipe Q1 switch on, then positive pole input interface (5V) can lead directly to bluetooth module's VUSB this moment, and through resistance R8 and resistance R9 partial pressure, let triode Q2 always lead to, and then make triode Q2 keep the on-state, just so can realize lasting charging function; the Bluetooth module judges whether charging is finished or not by detecting the change of charging current, after the charging is completed, PWREN (IO) of the Bluetooth module is set to 0 by programming, a triode Q2 is cut off, so that an MOS (metal oxide semiconductor) tube Q1 is also cut off, at the moment, a positive electrode input interface (5V) and VUSB of the Bluetooth module are disconnected due to the cut-off of the MOS tube Q1, the disconnected charging function is realized, then the Bluetooth module executes shutdown operation by detecting the voltage value of a VUSB port, further the connection with a charging box is disconnected, and the Bluetooth module is automatically shut down; after taking out the bluetooth headset from the charging box, the touch module can be triggered, and the power-on can be realized by detecting the POWKEY function of the bluetooth module.
[ description of the drawings ]
The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:
fig. 1 is a block diagram of a control circuit of the present invention;
fig. 2 is a schematic circuit diagram of the bluetooth headset control circuit of the present invention;
fig. 3 is a schematic circuit diagram of the bluetooth module of the control circuit of the bluetooth headset of the present invention;
fig. 4 is a schematic circuit diagram of the touch module of the bluetooth headset control circuit of the present invention;
fig. 5 is a schematic circuit diagram of a charging module of the control circuit of the bluetooth headset of the present invention;
fig. 6 is a schematic circuit diagram of a microphone module of the bluetooth headset control circuit according to the present invention;
fig. 7 is a schematic circuit diagram of a signal lamp module of the bluetooth headset control circuit of the present invention;
fig. 8 is a schematic circuit diagram of a battery protection module of the control circuit of the bluetooth headset of the present invention;
fig. 9 is a schematic circuit diagram of a filter module of a speaker of the bluetooth headset control circuit according to the present invention;
fig. 10 is a schematic circuit diagram of a control circuit of the charging box of the present invention.
[ detailed description ] embodiments
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 10, the TWS bluetooth headset control circuit capable of automatically powering off after being fully charged of the present embodiment includes a bluetooth module, a touch module, a charging module, a speaker, and a battery, wherein the battery is used for supplying power to the bluetooth module and the touch module, the charging module includes a positive input interface, a GND interface, a MOS tube Q1 and a triode Q2, a source of the MOS tube Q1 is connected to the positive input interface, a drain of the MOS tube Q1 is connected to a VUSB port of the bluetooth module, a gate of the MOS tube Q1 is connected to a resistor R7, the other end of the resistor R7 is connected to a collector of the triode Q2, an emitter of the triode Q2 is grounded, a base of the triode Q2 is connected to the input interface through a capacitor C17, a base of the triode Q2 is connected to a PWREN port of the bluetooth module, a base of the triode Q2 is also grounded through a resistor R9 connected in series, a base of the triode Q2 is connected to the input interface with a charging terminal of the bluetooth module, a charging terminal of the TWS bluetooth module is connected to a DAC 94, a charging terminal of the charging module, a DAC 94, a drain of the charging module is connected to a DAC 94, a charging terminal of the bluetooth module, a charging module, a DAC # 867 is connected to a charging terminal of the bluetooth module, a charging terminal of the charging module, a DAC # 867 is connected to a charging terminal of the bluetooth module, a charging terminal of the charging module, a charging terminal of the bluetooth module, a DAC # 867 is connected to a charging terminal of the bluetooth module, a charging terminal of the bluetooth module, a charging terminal of the charging.
The working principle of the present invention will now be briefly described:
the utility model discloses a bluetooth headset's positive pole input interface and GND interface and the positive pole output interface and the GND interface switch-on of box that charges after, the electric capacity C17 of the module that charges through resistance R9, when resistance R9's voltage reaches 0.5 ~ 0.7V, triode Q2 can switch on, and then draw MOS pipe Q1's G utmost point low, make MOS pipe Q1 switch on, then positive pole input interface (5V) can lead directly to bluetooth module's VUSB this moment, and through resistance R8 and resistance R9 partial pressure, let triode Q2 always lead to, and then make triode Q2 keep the on-state, just so can realize lasting charging function; the Bluetooth module judges whether charging is finished or not by detecting the change of charging current, after the charging is completed, PWREN (IO) of the Bluetooth module is set to 0 by programming, a triode Q2 is cut off, so that an MOS (metal oxide semiconductor) tube Q1 is also cut off, at the moment, a positive electrode input interface (5V) and VUSB of the Bluetooth module are disconnected due to the cut-off of the MOS tube Q1, the disconnected charging function is realized, then the Bluetooth module executes shutdown operation by detecting the voltage value of a VUSB port, further the connection with a charging box is disconnected, and the Bluetooth module is automatically shut down; after taking out the bluetooth headset from the charging box, the touch module can be triggered, and the power-on can be realized by detecting the POWKEY function of the bluetooth module.
In this embodiment, the resistance of the resistor R4 is 510K Ω, the resistance of the resistor R5 is 270K Ω, the resistor R5 is grounded, and the resistor R4 is connected to the positive input interface;
in this embodiment, the resistance of the resistor R6 is 1M Ω, and the resistance of the resistor R7 is 1K Ω.
In this embodiment, the resistance of the resistor R8 is 100K Ω, and the resistance of the resistor R9 is 39K Ω; through the voltage division effect of the resistor R4 and the resistor R5, the voltage of the resistor R9 is maintained between 0.5V and 0.7V, the triode Q2 is conducted, the G pole of the MOS tube Q1 is pulled down, the MOS tube Q1 is conducted, at the moment, the positive input interface (5V) can be directly communicated with the VUSB of the Bluetooth module, the voltage is divided through the resistor R8 and the resistor R9, the triode Q2 is always conducted, and the triode Q2 is kept in a conducting state.
As shown in fig. 4, the touch module includes a touch chip and a touch pad, a VDD port of the touch chip is connected to the positive electrode of the battery, a TOG port and a VSS port of the touch chip are grounded, a Q port of the touch chip is connected to a PWRKEY port of the bluetooth module, an I port of the touch chip is connected to the touch pad, and the I port of the touch chip is grounded through a serially connected capacitor C15; the model of the touch chip is TTP233D _ GB 6.
The Bluetooth module comprises a Bluetooth chip, and the model of the Bluetooth chip is BT 8802A.
The control circuit of the present embodiment includes a microphone module (fig. 6), a signal lamp module (fig. 7), a battery protection module (fig. 8), and a filter module of a speaker (fig. 9), in addition to the above-mentioned bluetooth module, touch module, charging module, speaker, and battery. Since the microphone module, the signal lamp module, the battery protection module, and the filter module of the speaker adopt the conventional technologies, the description of the present embodiment is omitted.
The utility model discloses still protect a TWS bluetooth headset system, including bluetooth headset and with bluetooth headset assorted box that charges, bluetooth headset contain and adopt above the control circuit, the box that charges have the anodal output interface with bluetooth headset's positive input interface connection, the box that charges have the GND interface with bluetooth headset's GND interface connection, the box circuit schematic diagram that charges in this embodiment is shown as figure 10.
The technical content of the present invention is further described by the embodiments only, so that the reader can understand it more easily, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation according to the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.
Claims (8)
1. The TWS Bluetooth headset control circuit capable of automatically powering off after being charged is characterized by comprising a Bluetooth module, a touch module, a charging module, a loudspeaker and a battery, wherein the battery is used for supplying power to the Bluetooth module and the touch module, the charging module comprises a positive electrode input interface, a GND interface, an MOS tube Q1 and a triode Q2, the source electrode of the MOS tube Q1 is connected with the positive electrode input interface, the drain electrode of the MOS tube Q1 is connected with a VUSB port of the Bluetooth module, the grid electrode of the MOS tube Q1 is connected with a resistor R7, the other end of the resistor R7 is connected with the collector electrode of the triode Q2, the emitter electrode of the triode Q2 is grounded, the base electrode of the triode Q2 is connected with the positive electrode input interface through a capacitor C17, the base electrode of the triode Q2 is connected with the PWREN port of the Bluetooth module, the base electrode of the triode Q2 is further grounded through a resistor R9 connected in series, the base electrode of the triode Q2 is connected with the positive electrode resistor RKR 8653 of the Bluetooth module, the drain electrode of the DAC 368653 is connected with the Bluetooth module, the drain electrode of the DAC 368653, and the DAC 36867, the drain electrode of the Bluetooth module is connected with the touch module, and the DAC 36867.
2. The control circuit of a TWS Bluetooth headset capable of being automatically powered off after being fully charged of claim 1, wherein a resistance value of a resistor R4 is 510K Ω, a resistance value of a resistor R5 is 270K Ω, the resistor R5 is grounded, and the resistor R4 is connected with the positive input interface.
3. A TWS bluetooth headset control circuit that powers off automatically after being fully charged as claimed in claim 1, wherein the resistance of the resistor R6 is 1M Ω and the resistance of the resistor R7 is 1K Ω.
4. A TWS bluetooth headset control circuit that powers off automatically after being fully charged as claimed in claim 1, wherein the resistance of the resistor R8 is 100K Ω and the resistance of the resistor R9 is 39K Ω.
5. The circuit of claim 1, wherein the touch module comprises a touch chip and a touch pad, a VDD port of the touch chip is connected to an anode of the battery, a TOG port and a VSS port of the touch chip are grounded, a Q port of the touch chip is connected to a PWRKEY port of the bluetooth module, an I port of the touch chip is connected to the touch pad, and the I port of the touch chip is grounded through a series capacitor C15.
6. A TWS Bluetooth headset control circuit that powers off automatically after being fully charged as recited in claim 5 wherein the touch chip is TTP233D _ GB 6.
7. A TWS bluetooth headset control circuit that powers down automatically after being fully charged as claimed in claim 1 wherein the bluetooth module includes a bluetooth chip model number BT 8802A.
A TWS Bluetooth headset system comprising a Bluetooth headset and a charging box adapted to the Bluetooth headset, the Bluetooth headset comprising a control circuit according to any one of claims 1 to 7, the charging box having a positive output port connected to a positive input port of the Bluetooth headset, the charging box having a GND port connected to a GND port of the Bluetooth headset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922306441.5U CN211046528U (en) | 2019-12-20 | 2019-12-20 | Full-automatic-power-off Bluetooth headset control circuit and TWS Bluetooth headset system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922306441.5U CN211046528U (en) | 2019-12-20 | 2019-12-20 | Full-automatic-power-off Bluetooth headset control circuit and TWS Bluetooth headset system |
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| Publication Number | Publication Date |
|---|---|
| CN211046528U true CN211046528U (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922306441.5U Active CN211046528U (en) | 2019-12-20 | 2019-12-20 | Full-automatic-power-off Bluetooth headset control circuit and TWS Bluetooth headset system |
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|---|---|
| CN (1) | CN211046528U (en) |
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