CN210634685U - Motorcycle sound box with voltage stabilizing circuit - Google Patents
Motorcycle sound box with voltage stabilizing circuit Download PDFInfo
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- CN210634685U CN210634685U CN201921853976.8U CN201921853976U CN210634685U CN 210634685 U CN210634685 U CN 210634685U CN 201921853976 U CN201921853976 U CN 201921853976U CN 210634685 U CN210634685 U CN 210634685U
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Abstract
The utility model discloses a motorcycle stereo set with voltage stabilizing circuit, receive main control circuit, voltage stabilizing circuit and power amplifier circuit including the bluetooth audio frequency, the bluetooth audio frequency is received main control circuit and is included main control chip, conversation microphone and bluetooth receiving antenna, main control chip's tenth pin and eleventh pin are connected with the positive pole and the negative pole of conversation microphone respectively, the twenty-fifth pin of main control chip passes through n type network and bluetooth receiving antenna connection, voltage stabilizing circuit includes voltage stabilizing chip, first diode, eighth electric capacity, second diode and fourteenth resistance, the first pin of voltage stabilizing chip is connected with the input of battery through first diode. The utility model discloses a motorcycle stereo set with voltage stabilizing circuit makes this stereo set reliability improve greatly in adding voltage stabilizing circuit.
Description
Technical Field
The utility model relates to a stereo set circuit, in particular to motorcycle stereo set with voltage stabilizing circuit.
Background
With the development of the motorcycle industry and the improvement of the living standard of people, the motorcycle becomes one of the main tools for people to ride instead of walk, and the luxury, comfort, convenience and applicability of the motorcycle become a fashion pursuit of motorcycle riders. The existing motorcycle sound equipment is exposed to the sun and rain or the aging phenomenon easily appears in the circuit, the phenomenon that the voltage stabilization situation is poor is appeared in the aging of the circuit easily in the circuit, and a new technical scheme is necessary to be provided for solving the defects in the prior art.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a motorcycle stereo set with voltage stabilizing circuit makes this stereo set reliability improve greatly in adding voltage stabilizing circuit.
In order to solve the technical problem, the utility model discloses a technical scheme does:
the motorcycle sound with the voltage stabilizing circuit comprises a Bluetooth audio receiving main control circuit, a voltage stabilizing circuit and a power amplifier circuit, wherein the Bluetooth audio receiving main control circuit comprises a main control chip, a call microphone and a Bluetooth receiving antenna, a tenth pin and an eleventh pin of the main control chip are respectively connected with the anode and the cathode of the call microphone, a twenty-fifth pin of the main control chip is connected with the Bluetooth receiving antenna through an n-type network, the voltage stabilizing circuit comprises a voltage stabilizing chip, a first diode, an eighth capacitor, a second diode and a fourteenth resistor, the first pin of the voltage stabilizing chip is connected with the input end of a battery through the first diode, the second pin of the voltage stabilizing chip is connected with the twenty-second pin of the main control chip through the second diode and the fourteenth resistor in sequence, a third pin of the voltage stabilizing chip is connected with an earthing terminal, and the thirteenth pin and the fourteenth pin of the main control chip are respectively connected with the left sound channel control input end and the left sound channel control input end of the The left channel control input is connected.
Further, the power amplifier circuit includes power amplifier chip, left loudspeaker and right loudspeaker, the second pin of power amplifier chip is connected with the collecting electrode of first triode through nineteenth resistance, the projecting pole and the earthing terminal of first triode are connected, the base of first triode is connected with the eighteenth pin of power amplifier chip.
Furthermore, the n-type network comprises a first inductor, a second inductor and a third inductor, a twenty-fifth pin of the main control chip is connected with the bluetooth receiving antenna through the first inductor, and two ends of the first inductor are respectively connected with the grounding end through the second inductor and the third inductor.
Further, the model of the voltage stabilizing chip is 78M 05.
By adopting the technical scheme, the main control chip of the Bluetooth audio receiving main control circuit is connected into the voltage stabilizing circuit, the voltage stabilizing chip of the voltage stabilizing circuit is a three-terminal anode voltage stabilizer, the voltage stabilizing chip adopts built-in current limiting, when the stable voltage is pressurized to the control chip, the Bluetooth audio receiving main control circuit can be protected from being damaged by overload output, and the Bluetooth audio receiving main control circuit is added into the voltage stabilizing circuit, so that the reliability of the sound box is greatly improved.
Drawings
Fig. 1 is a circuit connection diagram of the present invention.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, the utility model discloses a motorcycle sound with voltage regulator circuit, including bluetooth audio frequency receiving main control circuit 1, voltage regulator circuit 2 and power amplifier circuit 3, bluetooth audio frequency receiving main control circuit 1 includes main control chip U1, conversation microphone MIC and bluetooth receiving antenna BT1, the tenth pin and the eleventh pin of main control chip U1 are connected with the positive pole and the negative pole of conversation microphone MIC respectively, the twenty-fifth pin of main control chip U1 is connected with bluetooth receiving antenna BT1 through n type network, voltage regulator circuit 2 includes voltage stabilization chip U2, first diode Q1, eighth electric capacity C8, second diode Q2 and fourteenth electric resistance R14, the first pin of voltage stabilization chip U2 is connected with the input end of battery through first diode Q1, the second pin of voltage stabilization chip U2 loops through second diode Q2 and fourteenth electric resistance R14 and is connected with the twenty-second pin of main control chip U1, the third pin of the voltage stabilizing chip U2 is connected to the ground, the thirteenth pin and the fourteenth pin of the main control chip U1 are connected to the left channel control input DACL and the right channel control input DACR of the power amplifier circuit 3, respectively, and the voltage stabilizing chip U2 is 78M 05. Because the main control chip U1 of the Bluetooth audio receiving main control circuit 1 is connected into the voltage stabilizing circuit 2, the voltage stabilizing chip U2 of the voltage stabilizing circuit 2 is a three-terminal anode voltage stabilizer, the voltage stabilizing chip U2 adopts built-in current limiting, when stable voltage is pressurized into the control chip, the Bluetooth audio receiving main control circuit 1 can be protected from being damaged by overload output, and the Bluetooth audio receiving main control circuit is added into the voltage stabilizing circuit 2, so that the reliability of the sound is greatly improved.
The power amplifier circuit 3 includes power amplifier chip U3, left loudspeaker L and right loudspeaker R, the second pin of power amplifier chip U3 is connected with first triode Q1's collecting electrode through nineteenth resistance R19, first triode Q1's projecting pole is connected with the earthing terminal, first triode Q1's base and power amplifier chip U3's eighteenth pin are connected, the silence control signal that the base of first triode Q1 of this department passes through the main control chip output can control left loudspeaker L and right loudspeaker R and get into the silence state at any time, increase the functionality of this circuit.
The n-type network comprises a first inductor L1, a second inductor L2 and a third inductor L3, a twenty-fifth pin of the main control chip U1 is connected with the Bluetooth receiving antenna BT1 through the first inductor L1, two ends of the first inductor L1 are respectively connected with a grounding end through the second inductor L2 and the third inductor L3, and the n-type network circuit is additionally arranged to effectively remove impurities from signals, so that voice signals processed by the main control chip are clearer.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (4)
1. The utility model provides a motorcycle stereo set with voltage stabilizing circuit, receives master control circuit, voltage stabilizing circuit and power amplifier circuit including the bluetooth audio frequency, its characterized in that: the Bluetooth audio receiving main control circuit comprises a main control chip, a talking microphone and a Bluetooth receiving antenna, the tenth pin and the eleventh pin of the main control chip are respectively connected with the anode and the cathode of the communication microphone, the twenty-fifth pin of the main control chip is connected with the Bluetooth receiving antenna through an n-type network, the voltage stabilizing circuit comprises a voltage stabilizing chip, a first diode, an eighth capacitor, a second diode and a fourteenth resistor, the first pin of the voltage stabilizing chip is connected with the input end of the battery through a first diode, the second pin of the voltage stabilizing chip is connected with the twenty-second pin of the main control chip through a second diode and a fourteenth resistor in turn, and a thirteenth pin and a fourteenth pin of the main control chip are respectively connected with a left sound channel control input end and a left sound channel control input end of the power amplification circuit.
2. The motorcycle audio with voltage stabilizing circuit of claim 1, wherein: the power amplifier circuit includes power amplifier chip, left loudspeaker and right loudspeaker, the second pin of power amplifier chip is connected with the collecting electrode of first triode through nineteenth resistance, the projecting pole and the earthing terminal of first triode are connected, the base of first triode is connected with the eighteenth pin of power amplifier chip.
3. The motorcycle audio with voltage stabilizing circuit of claim 1, wherein: the n-type network comprises a first inductor, a second inductor and a third inductor, wherein a twenty-fifth pin of the main control chip is connected with the Bluetooth receiving antenna through the first inductor, and two ends of the first inductor are respectively connected with the grounding end through the second inductor and the third inductor.
4. The motorcycle audio with voltage stabilizing circuit of claim 1, wherein: the model of the voltage stabilization chip is 78M 05.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921853976.8U CN210634685U (en) | 2019-10-30 | 2019-10-30 | Motorcycle sound box with voltage stabilizing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921853976.8U CN210634685U (en) | 2019-10-30 | 2019-10-30 | Motorcycle sound box with voltage stabilizing circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210634685U true CN210634685U (en) | 2020-05-29 |
Family
ID=70797636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921853976.8U Active CN210634685U (en) | 2019-10-30 | 2019-10-30 | Motorcycle sound box with voltage stabilizing circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210634685U (en) |
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2019
- 2019-10-30 CN CN201921853976.8U patent/CN210634685U/en active Active
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