CN216795224U

CN216795224U - Intelligent control integrated chip for audio-visual education microphone

Info

Publication number: CN216795224U
Application number: CN202122360268.4U
Authority: CN
Inventors: 董波
Original assignee: Shenzhen Jinritai Electronics Co ltd
Current assignee: Shenzhen Jinritai Electronics Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-06-21
Anticipated expiration: 2031-09-28

Abstract

The utility model discloses an intelligent control integrated chip of an audio-visual education microphone, which comprises an audio-visual education microphone transceiving circuit, a power supply circuit, a switch control circuit, a wireless transmission circuit and a power management circuit, wherein the power output end of the power supply circuit is electrically connected with the power end of the audio-visual education microphone transceiving circuit; the wireless transmission circuits are all connected with the signal transceiving ends of the audio-visual education microphone transceiving circuits. The utility model discloses an intelligent control integrated chip of an electrified education microphone, which adopts an integrated chip with an SOC2020 model as a main chip, namely realizes wireless communication with the outside, and can adjust volume and indicate working state; the power supply can provide a stable power supply, and the power input end of the power supply effectively prevents the transient large current from damaging the U1 through the protective action of the voltage regulator tube D5 and the voltage regulator tube D6.

Description

Intelligent control integrated chip for audio-visual education microphone

Technical Field

The utility model relates to the technical field of audio-visual education microphones, in particular to an intelligent control integrated chip of an audio-visual education microphone.

Background

The audio-visual education microphone is applied to places such as teaching, meeting to more and more intelligent, along with the integrated level risees, consequently its different integrated module also needs different operating voltage, for this reason, need provide stable operating voltage for it, and current audio-visual education microphone intelligent control chip is not enough of doing on this point, consequently influences its control function, in order to improve the stability of work, provides an audio-visual education microphone intelligent control integrated chip.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an intelligent control integrated chip of an electrified education microphone, which has high integration level and stable power supply, can prevent damage caused by transient large current and solves the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: an intelligent control integrated chip of an audio-visual education microphone comprises an audio-visual education microphone transceiving circuit, a power supply circuit, a switch control circuit, a wireless transmission circuit and a power management circuit, wherein the power output end of the power supply circuit is electrically connected with the power end of the audio-visual education microphone transceiving circuit; the wireless transmission circuit is connected with the signal receiving and transmitting end of the audio-visual education microphone receiving and transmitting circuit, the power output end of the power management circuit is electrically connected with the power end of the audio-visual education microphone receiving and transmitting circuit, and the switch control circuit is connected with the control end of the audio-visual education microphone receiving and transmitting circuit.

Preferably, the transceiver circuit of the electrified education microphone comprises a chip U1, a wireless transmission terminal BT-ANT1 terminal, a key switch SW1, a key switch SW2 and a display lamp LED2, wherein the wireless transmission terminal BT-ANT1 terminal is connected to pins 8 and 9 of the chip U1, the model of the chip U1 is SOC2020, the positive electrode of the key switch SW1 is connected to pin 33 of the chip U1, the negative electrode of the key switch SW1 is grounded, the positive electrode of the key switch SW2 is connected to pin 42 of the chip U1, the output end of the key switch SW2 is grounded, the input end of the display lamp LED2 is connected to pin 28 of the chip U1, and the output end of the display lamp LED2 is grounded.

Preferably, the power supply circuit adopts a power chip U3 and a power chip U4, an in pin of the power chip U3 is connected with a 4.2V power supply input, an out pin of the power chip U3 is connected with a 21 pin of the chip U1, an in pin of the power chip U4 is connected with a 4.2V power supply input, and an out pin of the power chip U4 is connected with a 6 pin of the chip U1.

Preferably, the switch control circuit comprises a field effect transistor Q1, a triode Q5 and a key switch SW6, wherein a pin 3 of the field effect transistor Q1 is connected with a 4.2V power supply input, a pin 2 of the field effect transistor Q1 is connected with a VBAT power supply end input, a pin 1 of the field effect transistor Q1 is connected with a collector of the triode Q5 and is connected to an input end of a voltage regulator tube D5, a pin 2 of the triode Q5 is grounded, a base electrode of the triode Q1 is connected with a pin 45 of a chip U1, an output end of the voltage regulator tube D5 is connected with an input end of the key switch SW6 and is connected with an output end of the voltage regulator tube D6, an output end of the key switch SW6 is grounded, and an input end of the voltage regulator tube D6 is connected with a power supply input terminal.

Preferably, the wireless transmission circuit comprises a wireless connection pin bank J1, a capacitor C12, a capacitor C30, a resistor R1, a resistor R2, a capacitor C20 and a capacitor C22, wherein a pin 4 of the wireless connection pin bank J1 is connected with an output end of the resistor R1 and an input end of the capacitor C21, a pin 3 of the wireless connection pin bank J1 is connected with an output end of a resistor R2, an input end of the resistor R2 is connected with an output end of the capacitor C20, and an input end of the capacitor C20 is connected with an input end of the resistor R1 and then connected with a pin 20 of the chip U1; the output end of the capacitor C12 is connected to the output end of the resistor R1, the input end of the capacitor C12 is connected to the AIP-R terminal input, and is connected to the input end of the capacitor C22; the output of the capacitor C30 is connected to the output of resistor R2, to the AIN-R terminal input and to the output of capacitor C22.

Preferably, the power management circuit comprises a wiring pin JACK1 and a chip U2, wherein a pin 4 of the chip U2 is connected with a pin 2 of the wiring pin JACK1 and is connected to the input end of a capacitor C6, a pin 5 of the chip U2 is connected to the input end of a resistor R21, and the output end of the resistor R21 is connected with the output end of the capacitor C6 and then is grounded; the 3-pin connection emission terminal E1 output of the chip U2, the 2-pin connection emission terminal E2 output of the chip U2, the 1 pin of the chip U2 is connected to the output end of the light-emitting diode LED1, and the input end of the light-emitting diode LED1 is connected to the 2 pin of the wiring pin bank JACK 1.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model discloses an intelligent control integrated chip of an electrified education microphone, which adopts an SOC2020 integrated chip as a main chip, namely realizes wireless communication with the outside, and can adjust volume and indicate working state; the power supply chip U3 and the power supply chip U4 process the input power supply and then output stable power supply to supply power to different integrated modules on the chip U1 so as to provide stable power supply, and the power supply input end of the power supply chip U8932 effectively prevents the transient large current from damaging the chip U1 through the protection effect of the voltage regulator tube D5 and the voltage regulator tube D6.

Drawings

FIG. 1 is a circuit diagram of an electrical microphone transceiver circuit according to the present invention;

FIG. 2 is a power supply circuit diagram of the present invention;

FIG. 3 is a circuit diagram of the switch control of the present invention;

FIG. 4 is a circuit diagram of a wireless transmission circuit according to the present invention;

FIG. 5 is a power management circuit diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, an intelligent control integrated chip for an audio-visual education microphone comprises an audio-visual education microphone transceiver circuit, a power supply circuit, a switch control circuit, a wireless transmission circuit and a power management circuit, wherein a power output end of the power supply circuit is electrically connected with a power end of the audio-visual education microphone transceiver circuit; the wireless transmission circuit is connected with the signal receiving and transmitting end of the audio-visual education microphone receiving and transmitting circuit, the power output end of the power management circuit is electrically connected with the power end of the audio-visual education microphone receiving and transmitting circuit, and the switch control circuit is connected with the control end of the audio-visual education microphone receiving and transmitting circuit.

Wherein: the audio-visual education microphone transceiving circuit comprises a chip U1, a wireless transmission terminal BT-ANT1, a key switch SW1, a key switch SW2 and a display lamp LED2, wherein the wireless transmission terminal BT-ANT1 is connected to pins 8 and 9 of the chip U1, the model of the chip U1 is SOC2020, the anode of the key switch SW1 is connected to pin 33 of the chip U1, the cathode of the key switch SW1 is grounded, the anode of the key switch SW2 is connected to pin 42 of the chip U1, the output end of the key switch SW2 is grounded, the input end of the display lamp LED2 is connected to pin 28 of the chip U1, and the output end of the display lamp LED2 is grounded.

Wherein: the power supply circuit adopts a power chip U3 and a power chip U4, an in pin of the power chip U3 is connected with a 4.2V power supply input, an out pin of the power chip U3 is connected with a 21 pin of the chip U1, an in pin of the power chip U4 is connected with a 4.2V power supply input, and an out pin of the power chip U4 is connected with a 6 pin of the chip U1.

Wherein: the switch control circuit comprises a field effect transistor Q1, a triode Q5 and a key switch SW6, wherein a pin 3 of the field effect transistor Q1 is connected with a 4.2V power supply input, a pin 2 of the field effect transistor Q1 is connected with a VBAT power supply end input, a pin 1 of the field effect transistor Q1 is connected with a collector electrode of the triode Q5 and is connected to an input end of a voltage regulator tube D5, a pin 2 of the triode Q5 is grounded, a base electrode of the triode Q1 is connected to a pin 45 of a chip U1, an output end of the voltage regulator tube D5 is connected to an input end of the key switch SW6 and is connected to an output end of the voltage regulator tube D6, an output end of the key switch SW6 is grounded, and an input end of the voltage regulator tube D6 is connected to a power supply input terminal.

Wherein: the wireless transmission circuit comprises a wireless connection pin bank J1, a capacitor C12, a capacitor C30, a resistor R1, a resistor R2, a capacitor C20 and a capacitor C22, wherein a pin 4 of the wireless connection pin bank J1 is connected with the output end of the resistor R1 and is connected to the input end of the capacitor C21, a pin 3 of the wireless connection pin bank J1 is connected to the output end of a resistor R2, the input end of the resistor R2 is connected to the output end of the capacitor C20, and the input end of the capacitor C20 is connected with the input end of the resistor R1 and then is connected to a pin 20 of the chip U1; the output end of the capacitor C12 is connected to the output end of the resistor R1, the input end of the capacitor C12 is connected to the AIP-R terminal input, and is connected to the input end of the capacitor C22; the output of the capacitor C30 is connected to the output of resistor R2, to the AIN-R terminal input and to the output of capacitor C22.

Wherein: the power management circuit comprises a patch bar JACK1 and a chip U2, wherein a pin 4 of the chip U2 is connected with a pin 2 of the patch bar JACK1 and is connected to the input end of a capacitor C6, a pin 5 of the chip U2 is connected to the input end of a resistor R21, and the output end of the resistor R21 is connected with the output end of the capacitor C6 and then is grounded; the 3-pin connection emission terminal E1 output of the chip U2, the 2-pin connection emission terminal E2 output of the chip U2, the 1 pin of the chip U2 is connected to the output end of the light-emitting diode LED1, and the input end of the light-emitting diode LED1 is connected to the 2 pin of the wiring pin bank JACK 1.

The intelligent control integrated chip of the electrified education microphone, the chip U1 is an integrated chip, wireless communication can be established with the outside through the 8 pin and 9 pin of the chip U1 connected with the wireless transmission terminal BT-ANT1, the volume is controlled through the key switch SW1, the volume is controlled through the key switch SW2, the power supply state is displayed through the display lamp LED2, meanwhile, the 4.2V power supply output is accessed through the power supply chip U3 and the power supply chip U4, and the power supply chip U3 and the power supply chip U4 process the input power supply and then output stable power supply to supply power to different integrated modules on the chip U1 so as to provide stable power supply; whether power supply is controlled by a key switch SW6yongyi of the switch control circuit or not is protected by a voltage regulator tube D5 and a voltage regulator tube D6, and the chip U1 is prevented from being damaged by transient large current.

In conclusion, the utility model discloses an intelligent control integrated chip of an electrified education microphone, which adopts an integrated chip with an SOC2020 model as a main chip, namely realizes the wireless communication with the outside, and can adjust the volume and indicate the working state; meanwhile, a power chip U3 and a power chip U4 are connected to the port of the chip, the power chip U3 and the power chip U4 process the input power and then output stable power to supply power to different integrated modules on the chip U1 so as to provide stable power supply, and the power input end of the chip U1 is effectively prevented from being damaged by transient large current through the protection effect of a voltage regulator tube D5 and a voltage regulator tube D6.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an audio-visual education programme microphone intelligent control integrated chip, includes audio-visual education programme microphone transceiver circuit, power supply circuit, on-off control circuit, wireless transmission circuit, power management circuit, its characterized in that: the power supply output end of the power supply circuit is electrically connected with the power supply end of the audio-visual education microphone transceiving circuit; the wireless transmission circuit is connected to the signal transceiving end of the audio-visual education microphone transceiving circuit, the power output end of the power management circuit is electrically connected with the power end of the audio-visual education microphone transceiving circuit, and the switch control circuit is connected to the control end of the audio-visual education microphone transceiving circuit.

2. The intelligent control integrated chip for the electrified education microphone according to claim 1, wherein: the audio-visual education microphone transceiving circuit comprises a chip U1, a wireless transmission terminal BT-ANT1 terminal, a key switch SW1, a key switch SW2 and a display lamp LED2, wherein the wireless transmission terminal BT-ANT1 terminal is connected to pins 8 and 9 of the chip U1, the model of the chip U1 is SOC2020, the anode of the key switch SW1 is connected to pin 33 of the chip U1, the cathode of the key switch SW1 is grounded, the anode of the key switch SW2 is connected to pin 42 of the chip U1, the output end of the key switch SW2 is grounded, the input end of the display lamp LED2 is connected to pin 28 of the chip U1, and the output end of the display lamp LED2 is grounded.

3. The intelligent control integrated chip for the electrified education microphone according to claim 1, wherein: the power supply circuit adopts a power chip U3 and a power chip U4, an in pin of the power chip U3 is connected with a 4.2V power supply input, an out pin of the power chip U3 is connected with a 21 pin of the chip U1, an in pin of the power chip U4 is connected with a 4.2V power supply input, and an out pin of the power chip U4 is connected with a 6 pin of the chip U1.

4. The intelligent control integrated chip for the electrified education microphone according to claim 1, wherein: the switch control circuit comprises a field effect transistor Q1, a triode Q5 and a key switch SW6, wherein a pin 3 of the field effect transistor Q1 is connected with a 4.2V power supply input, a pin 2 of the field effect transistor Q1 is connected with a VBAT power supply end input, a pin 1 of the field effect transistor Q1 is connected with a collector electrode of the triode Q5 and is connected to an input end of a voltage regulator tube D5, a pin 2 of the triode Q5 is grounded, a base electrode of the triode Q1 is connected to a pin 45 of a chip U1, an output end of a voltage regulator tube D5 is connected to an input end of the key switch SW6 and is connected to an output end of the voltage regulator tube D6, an output end of the key switch SW6 is grounded, and an input end of the voltage regulator tube D6 is connected to a power supply input terminal.

5. The intelligent control integrated chip for the electrified education microphone according to claim 1, wherein: the wireless transmission circuit comprises a wireless connection pin bank J1, a capacitor C12, a capacitor C30, a resistor R1, a resistor R2, a capacitor C20 and a capacitor C22, wherein a pin 4 of the wireless connection pin bank J1 is connected with the output end of the resistor R1 and is connected to the input end of the capacitor C21, a pin 3 of the wireless connection pin bank J1 is connected to the output end of a resistor R2, the input end of the resistor R2 is connected to the output end of the capacitor C20, and the input end of the capacitor C20 is connected with the input end of the resistor R1 and then is connected to a pin 20 of a chip U1; the output end of the capacitor C12 is connected to the output end of the resistor R1, the input end of the capacitor C12 is connected to the AIP-R terminal input, and is connected to the input end of the capacitor C22; the output of the capacitor C30 is connected to the output of resistor R2, to the AIN-R terminal input and to the output of capacitor C22.

6. The intelligent control integrated chip for the electrified education microphone according to claim 1, wherein: the power management circuit comprises a wiring pin JACK1 and a chip U2, wherein a pin 4 of the chip U2 is connected with a pin 2 of the wiring pin JACK1 and is connected to the input end of a capacitor C6, a pin 5 of the chip U2 is connected to the input end of a resistor R21, and the output end of the resistor R21 is connected with the output end of the capacitor C6 and then is grounded; the 3-pin connection emission terminal E1 output of the chip U2, the 2-pin connection emission terminal E2 output of the chip U2, the 1 pin of the chip U2 is connected to the output end of the light-emitting diode LED1, and the input end of the light-emitting diode LED1 is connected to the 2 pin of the wiring pin bank JACK 1.