CN201479124U - Novel radio - Google Patents
Novel radio Download PDFInfo
- Publication number
- CN201479124U CN201479124U CN200920139313XU CN200920139313U CN201479124U CN 201479124 U CN201479124 U CN 201479124U CN 200920139313X U CN200920139313X U CN 200920139313XU CN 200920139313 U CN200920139313 U CN 200920139313U CN 201479124 U CN201479124 U CN 201479124U
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Abstract
The utility model discloses a novel radio which comprises a power supply, a power amplifier, a power amplifier power supply control circuit, a single-chip microcomputer, an FM module, an FM module power supply control circuit, a volume control circuit and a sound output circuit, and has the advantages that because a radio circuit adopts the combination of the FM module and the single-chip microcomputer, the circuit structure is quite simple and has quite strong anti-interference capability, so the computer does not shut down and the programs are not disorder because of the high-voltage and high-frequency interference of an ignition coil, the radio signal can be accurately received no matter in the running state or in the static state, the radio frequency is locked and the channels are not tripped; and after being installed on a motorcycle, the radio can still be used normally in the adverse use environment of the motorcycle.
Description
Technical field
The utility model relates to a kind of broadcast receiver, specifically is a kind of broadcast receiver that is used for motorcycle.
Background technology
Because the design feature of motorcycle self makes that the power supply AC ripple of motorcycle battery is big, scope range of the fluctuation of voltage is big, and the ignition coil high voltagehigh frequency of motorcycle disturbs, and also has a strong impact on the normal use of electrical equipment.Common receiver circuit is all discrete component and constitutes, its circuit structure complexity, and element is debugged trouble more, and antijamming capability is relatively poor.Problems such as therefore, existing broadcast receiver can use under common environment normally, but is installed to when using on the motorcycle, will occur crashing, and the program entanglement can't be received the radio station, receives the platform instability, and hum is big can't normally be used at all.
The utility model content
It is better that the purpose of this utility model provides a kind of interference free performance, the late model radio that can normally use on motorcycle.
The technical solution of the utility model is such: a kind of late model radio, comprise power supply, the power amplifier part, power amplifier part power control circuit, single-chip microcomputer, the FM module, FM modular power source control circuit, volume control circuit and sound out-put circuit, the output of above-mentioned power supply connects the power end of above-mentioned power amplifier part power control circuit respectively, the power end of the power end of above-mentioned single-chip microcomputer and above-mentioned FM modular power source control circuit, the output of above-mentioned single-chip microcomputer connects the trigger end of above-mentioned power amplifier part power control circuit respectively, the trigger end of above-mentioned FM modular power source control circuit and the trigger end of above-mentioned FM module, the output of above-mentioned power amplifier part power control circuit connects the power end of above-mentioned power amplifier part and the power end of above-mentioned volume control circuit respectively, the output of above-mentioned FM modular power source control circuit connects the power end of above-mentioned FM module, the output of above-mentioned volume control circuit connects the input of above-mentioned power amplifier part, and the output of above-mentioned power amplifier part connects the input of tut output circuit.
Above-mentioned power supply draws the storage battery from motorcycle.
Be connected with power supply stabilization circuit between the power end of the power end of the output of above-mentioned power supply and above-mentioned power amplifier part power control circuit, the power end of above-mentioned single-chip microcomputer and above-mentioned FM modular power source control circuit.
Be connected with the MP3 input-switching circuit between the output of above-mentioned FM module and the input of above-mentioned volume control circuit.
After adopting such scheme, a kind of late model radio of the present utility model, beneficial effect is: because the radio reception circuit adopts FM module and single machine combination, its circuit structure is comparatively simple, antijamming capability is stronger, can not disturb the situation that deadlock or program entanglement occur because of the ignition coil high voltagehigh frequency, no matter still can both accurately must receive radio signals in the process of moving in inactive state, and the pinning frequency of radio station prevents that it from the treadmill phenomenon occurring, broadcast receiver of the present utility model is installed on the motorcycle, in the abominable environment for use of motorcycle, still can normally uses.
Description of drawings
Fig. 1 is a circuit block diagram of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
A kind of late model radio of the present utility model, as shown in Figure 1, comprise power supply 1, power supply stabilization circuit 2, power amplifier part 3, power amplifier part power control circuit 4, single-chip microcomputer 5, FM module 6, FM modular power source control circuit 7, volume control circuit 8, sound out-put circuit 9 and MP3 input-switching circuit 10, power supply 1 draws the storage battery from motorcycle, the output of power supply 1 connects the input of power supply stabilization circuit 2, the output of power supply stabilization circuit 2 connects the power end of power amplifier part power control circuit 4 respectively, the power end of the power end of single-chip microcomputer 5 and FM modular power source control circuit 7, the output of single-chip microcomputer 5 connects the trigger end of power amplifier part power control circuit 4 respectively, the trigger end of FM modular power source control circuit 7 and the trigger end of FM module 6, the output of power amplifier part power control circuit 4 connects the power end of power amplifier part 3 and the power end of volume control circuit 8 respectively, the output of FM modular power source control circuit 7 connects the power end of FM module 6, the output of volume control circuit 8 connects the input of power amplifier part 3, the output of power amplifier part 3 connects the input of sound out-put circuit 9, and MP3 input-switching circuit 10 is connected between the input of the output of FM module 6 and volume control circuit 8.
During work, power supply 1 provides a stable working power for whole receiver circuit after power supply stabilization circuit 2 voltage stabilizings, single-chip microcomputer 5 output triggering signals are given FM module 6, FM module 6 is started working, send search instruction by single-chip microcomputer 5 again and give FM module 6, after FM module 6 searches frequency of radio station, pinning this frequency by single-chip microcomputer 5 and FM module 6 just begins to search for once more up to following subcommand, this moment, FM module 6 output audio signals were given volume control circuit 8, this receiver circuit can insert MP3 by MP3 input-switching circuit 10, the audio signal of MP3 output is also delivered to volume control circuit 8, size by volume control circuit 8 control volumes, by volume control circuit 8 this audio signal is delivered to power amplifier part 3 and carry out the audio frequency amplification, deliver to sound out-put circuit 9 at last.
As shown in Figure 2, supply voltage is imported through diode D1, the voltage stabilizing circuit of being made up of triode Q1, triode Q2, triode Q3, resistance R 1, resistance R 2 resistance R 3, resistance R 4, resistance R 5, resistance R 6, capacitor C 1, capacitor C 25, capacitor C 26 and voltage-stabiliser tube Z1 provides a stable operating voltage for circuit again, and the voltage stabilizing circuit output 3.7V voltage of being made up of triode Q5, resistance R 14, voltage-stabiliser tube Z2 and capacitor C 7 is given single-chip microcomputer IC2 (single-chip microcomputer 5 among Fig. 1) standby voltage again.
During use, when pressing start key K6, the 3rd pin output low level of single-chip microcomputer IC2, triode Q4 conducting, relay J 1 adhesive, volume control chip IC1 and the 4 energising work of power amplifier chip IC, the 12nd pin of while single-chip microcomputer IC2 is output low level also, triode Q6 conducting, FM module I C3 (the FM module 6 among Fig. 1) energising work, this moment, entire circuit was in an operating state, when pressing when upwards searching platform button K4, single-chip microcomputer IC2 exports one group of data command and gives FM module I C3, FM module I C3 enters search condition, after searching frequency of radio station, single-chip microcomputer IC2 and FM module I C3 pin frequency just to begin to search for once more up to following subcommand, this moment FM module I C3 the 4th, the audio signal of 5 pin output is coupled to volume control chip IC1 through capacitor C 13 and capacitor C 14, volume control section is divided by volume control chip IC1, capacitor C 2, capacitor C 3, capacitor C 9, capacitor C 27, capacitor C 10, capacitor C 4, capacitor C 8, diode D3, diode D4, button K1, button K2, resistance R 8 and resistance R 9 are formed, short time presses the button K1, thereby can carry out the size of the plus-minus control volume of volume during K2, this audio signal is exported by the 6th pin of volume control chip IC1 again, after capacitor C 9 couplings, enter MP3, radio receiver signal switches socket 11, after capacitor C 24 is coupled once more, be input to power amplifier chip IC 4 and carry out the audio frequency amplification, again through capacitor C 22, output to earphone socket 12 or loudspeaker 13 after the C23 coupling.
When by shutdown button K5, the 3rd pin of single-chip microcomputer IC2, the 12nd pin output high level, triode Q4 and triode Q6 end, relay J 1 disconnects, volume control chip IC1 and 4 outages of power amplifier chip IC are not worked, simultaneously FM module I C3 also cuts off the power supply and does not work, single-chip microcomputer IC2 enter holding state up to next time start rework again.
Claims (4)
1. late model radio, it is characterized in that: comprise power supply, the power amplifier part, power amplifier part power control circuit, single-chip microcomputer, the FM module, FM modular power source control circuit, volume control circuit and sound out-put circuit, the output of above-mentioned power supply connects the power end of above-mentioned power amplifier part power control circuit respectively, the power end of the power end of above-mentioned single-chip microcomputer and above-mentioned FM modular power source control circuit, the output of above-mentioned single-chip microcomputer connects the trigger end of above-mentioned power amplifier part power control circuit respectively, the trigger end of above-mentioned FM modular power source control circuit and the trigger end of above-mentioned FM module, the output of above-mentioned power amplifier part power control circuit connects the power end of above-mentioned power amplifier part and the power end of above-mentioned volume control circuit respectively, the output of above-mentioned FM modular power source control circuit connects the power end of above-mentioned FM module, the output of above-mentioned volume control circuit connects the input of above-mentioned power amplifier part, and the output of above-mentioned power amplifier part connects the input of tut output circuit.
2. a kind of late model radio according to claim 1 is characterized in that: above-mentioned power supply draws the storage battery from motorcycle.
3. a kind of late model radio according to claim 1 is characterized in that: be connected with power supply stabilization circuit between the power end of the output of above-mentioned power supply and the power end of above-mentioned power amplifier part power control circuit, above-mentioned single-chip microcomputer and the power end of above-mentioned FM modular power source control circuit.
4. a kind of late model radio according to claim 1 is characterized in that: be connected with the MP3 input-switching circuit between the output of above-mentioned FM module and the input of above-mentioned volume control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920139313XU CN201479124U (en) | 2009-07-01 | 2009-07-01 | Novel radio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920139313XU CN201479124U (en) | 2009-07-01 | 2009-07-01 | Novel radio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201479124U true CN201479124U (en) | 2010-05-19 |
Family
ID=42415379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920139313XU Expired - Fee Related CN201479124U (en) | 2009-07-01 | 2009-07-01 | Novel radio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201479124U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104768101A (en) * | 2014-12-29 | 2015-07-08 | 青岛歌尔声学科技有限公司 | Audio multiplexing circuit, audio multiplexing system and audio multiplexing method |
| CN110556109A (en) * | 2019-09-19 | 2019-12-10 | 雷沃工程机械集团有限公司 | Intelligent radio control system and method for excavator |
-
2009
- 2009-07-01 CN CN200920139313XU patent/CN201479124U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104768101A (en) * | 2014-12-29 | 2015-07-08 | 青岛歌尔声学科技有限公司 | Audio multiplexing circuit, audio multiplexing system and audio multiplexing method |
| CN104768101B (en) * | 2014-12-29 | 2018-08-24 | 青岛歌尔声学科技有限公司 | Audio-frequency multiplex circuit and system |
| CN110556109A (en) * | 2019-09-19 | 2019-12-10 | 雷沃工程机械集团有限公司 | Intelligent radio control system and method for excavator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20140701 |
|
| EXPY | Termination of patent right or utility model |