CN201466971U - Special power supply circuit of motorcycle display instrument - Google Patents
Special power supply circuit of motorcycle display instrument Download PDFInfo
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- CN201466971U CN201466971U CN2009201211894U CN200920121189U CN201466971U CN 201466971 U CN201466971 U CN 201466971U CN 2009201211894 U CN2009201211894 U CN 2009201211894U CN 200920121189 U CN200920121189 U CN 200920121189U CN 201466971 U CN201466971 U CN 201466971U
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Abstract
The utility model relates to a special power supply circuit of a motorcycle display instrument, which consists of two groups of power supplies, wherein in the first group of the power supplies, a 7805 three-terminal regulator IC7 outputs a constant voltage of plus 5 V, in the second group of the power supplies, an LM317 three-terminal regulator outputs a variable voltage from plus 3 .5 V to plus 5.5 V, the external electrical components of the 7805 three-terminal regulator IC7 include a diode D1, a capacitor C1, a capacitor C2, a capacitor C3 and a capacitor C4, and the external electrical components of the LM317 three-terminal regulator IC8 include a diode D2, a resistor R3, a resistor R4, a capacitor C5, a diode D3, a resistor R5, a transistor Q1, a resistor R1, a resistor R2 and a capacitor C6. The utility model provides power supply for a singlechip, a vehicle speed sensor, a drive circuit, a nixie tube display and a small square light display in the digital display instrument of the motorcycle.
Description
Technical field
The utility model relates to a kind of power circuit, refers in particular to a kind of motorcycle Displaying Meter power source special circuit.
Background technology
At present, the motorcycle instrument major part on the market is the mechanical pointer instrument, and it is liquid crystal display (LCD) instrument that small part is arranged.The odometer fractional part of mechanical pointer instrument rotates the rotation that drives instrument inside counting gear by the motorcycle flexible axle and counts.The total kilometrage number that gear write down is to do artificial change, as long as instrument is opened, and handsetting gear, the total kilometrage number will be changed.This shortcoming is a potential hidden danger to motorcycle producer.Because the three guarantees phase of motorcycle is by purchasing the car time and the distance travelled number is determined.Regulation according to country: buy by oneself from the car, motorcycle in 1 year or distance travelled to be no more than 6000Km be the three guarantees term of validity.This shortcoming of mechanical pointer instrument causes tremendous loss and no small trouble might for motorcycle producer.The mileage of mechanical pointer instrument shows, oil level shows, engine speed shows it is to be made of mechanical gauge outfit, the machinery gauge outfit mainly is made up of parts such as copper coil and hairsprings, therefore resistance to shock is poor, this also is a machinery instrument short main cause in useful life, gauge outfit is made of metal, and also can consume a large amount of raw material metals every year therefore.And the weight of instrument is also heavier, and this also can increase the cost of transportation of instrument.Because being the swing by pointer, the demonstration of mechanical pointer instrument shows that therefore, its accuracy and intuitive are not high yet.The application of motorcycle LCD instrument has overcome a lot of not enough places of mechanical pointer instrument, but the LCD of liquid crystal display instrument has it self weak point.LCD itself is very " enervated " just, is subjected to the influence of ambient temperature, humidity easily, and cost is also higher.It is made of liquid crystal, transparency electrode, glass flake etc., and resistance to shock is also relatively poor.The useful life of LCD is not long yet, generally uses 50,000 hours.In case liquid crystal display displays form and size moulding just can not be made any change, to give exploitation and produce diversified motorcycle instrument and bring very big difficulty, this also is a reason not used in a large number of motorcycle LCD instrument up to the present.Therefore, need exploitation motorcycle digital Displaying Meter.Power circuit is the important part of motorcycle digital Displaying Meter, needs to give single-chip microcomputer, vehicle speed sensor, drive circuit, charactron demonstration, the demonstration of little side's lamp that power supply is provided.
The utility model content
The purpose of this utility model is to provide a kind of motorcycle Displaying Meter power source special circuit, and it provides power supply for single-chip microcomputer, vehicle speed sensor, drive circuit, charactron demonstration, the demonstration of little side's lamp in the motorcycle digital Displaying Meter.
For achieving the above object, the solution that the utility model is taked is: a kind of motorcycle Displaying Meter power source special circuit, it is made up of two groups of power supplys, first group of power supply is by constant+5V voltage of 7805 three terminal regulator IC7 output, second group of power supply by one+3.5V of LM317 three terminal regulator IC8 output to+5.5V variable voltage, between the input of 7805 three terminal regulator IC7 and the diode D1 and connect capacitor C 1 and capacitor C 2, the output of 7805 three terminal regulator IC7 also connects capacitor C 3 and capacitor C 4, the negative terminal of capacitor C 1, capacitor C 2 other ends, the voltage stabilizing end of 7805 three terminal regulator IC7, the negative terminal of capacitor C 3, capacitor C 4 other end ground connection, the input of LM317 three terminal regulator IC8 and output cross-over connection diode D2, the voltage stabilizing terminating resistor R3 of LM317 three terminal regulator IC8, resistance R 4, capacitor C 5 anodes, diode D3 anode, resistance R 5, resistance R 3 another termination triode Q1 collector electrodes, triode Q1 base stage connecting resistance R1, resistance R 2, diode D3 negative terminal, resistance R 5 other ends, the output of capacitor C 6 positive termination LM317 three terminal regulator IC8, resistance R 2 other ends, triode Q1 emitter, resistance R 4 other ends, capacitor C 5 negative terminals, capacitor C 6 negativing ending groundings.
First group of power supply is by constant+5V voltage of 7805 three terminal regulator IC7 output, power supply is provided for respectively single-chip microcomputer, vehicle speed sensor, drive circuit in the motorcycle digital Displaying Meter, second group of power supply provides power supply for respectively the charactron demonstration in the motorcycle digital Displaying Meter, the demonstration of little side's lamp by one+3.5V to 5.5V of LM317 three terminal regulator IC8 output variable voltage.Because it is different that the motorcycle digital Displaying Meter operates in the needed display brightness of day and night, need very high brightness daytime, and to night, brightness is too high can to influence the scenery that human pilot is observed the place ahead, thereby influences safe driving.Therefore, need instrument automatically brightness to be dropped to suitable degree at night in the driving.When driving a vehicle night, (backlight signal, SIGNAL), just conducting of triode Q1 makes the lower voltage of LM317 three terminal regulator IC8 output, thereby reduces charactron and little side's lamp display brightness, reaches the purpose of safe driving as long as a dozen Kaiyuan City's light are wanted.
Description of drawings
Fig. 1 is a motorcycle Displaying Meter power source special circuit electrical connection diagram.
Embodiment
Below in conjunction with embodiment and accompanying drawing thereof the utility model is remake description.
Referring to Fig. 1, a kind of motorcycle Displaying Meter power source special circuit, it is made up of two groups of power supplys, first group of power supply is by constant+5V voltage of 7805 three terminal regulator IC7 output, second group of power supply by one+3.5V of LM317 three terminal regulator IC8 output to+5.5V variable voltage, between the input of 7805 three terminal regulator IC7 and the diode D1 and connect capacitor C 1 and capacitor C 2, the output of 7805 three terminal regulator IC7 also connects capacitor C 3 and capacitor C 4, the negative terminal of capacitor C 1, capacitor C 2 other ends, the voltage stabilizing end of 7805 three terminal regulator IC7, the negative terminal of capacitor C 3, capacitor C 4 other end ground connection, the input of LM317 three terminal regulator IC8 and output cross-over connection diode D2, the voltage stabilizing terminating resistor R3 of LM317 three terminal regulator IC8, resistance R 4, capacitor C 5 anodes, diode D3 anode, resistance R 5, resistance R 3 another termination triode Q1 collector electrodes, triode Q1 base stage connecting resistance R1, resistance R 2, diode D3 negative terminal, resistance R 5 other ends, the output of capacitor C 6 positive termination LM317 three terminal regulator IC8, resistance R 2 other ends, triode Q1 emitter, resistance R 4 other ends, capacitor C 5 negative terminals, capacitor C 6 negativing ending groundings.
Claims (1)
1. motorcycle Displaying Meter power source special circuit, it is characterized in that: it is made up of two groups of power supplys, first group of power supply is by constant+5V voltage of 7805 three terminal regulators (IC7) output, second group of power supply by one+3.5V of LM317 three terminal regulator (IC8) output to+5.5V variable voltage, between the input of 7805 three terminal regulators (IC7) and the diode (D1) and connect electric capacity (C1) and electric capacity (C2), the output of 7805 three terminal regulators (IC7) also connects electric capacity (C3) and electric capacity (C4), the negative terminal of electric capacity (C1), electric capacity (C2) other end, the voltage stabilizing end of 7805 three terminal regulators (IC7), the negative terminal of electric capacity (C3), electric capacity (C4) other end ground connection, the input of LM317 three terminal regulator (IC8) and output cross-over connection diode (D2), the voltage stabilizing terminating resistor (R3) of LM317 three terminal regulator (IC8), resistance (R4), electric capacity (C5) anode, diode (D3) anode, resistance (R5), another termination triode (Q1) collector electrode of resistance (R3), triode (Q1) base stage connecting resistance (R1), resistance (R2), diode (D3) negative terminal, resistance (R5) other end, the output of the positive termination LM317 three terminal regulator (IC8) of electric capacity (C6), resistance (R2) other end, triode (Q1) emitter, resistance (R4) other end, electric capacity (C5) negative terminal, electric capacity (C6) negativing ending grounding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201211894U CN201466971U (en) | 2009-05-29 | 2009-05-29 | Special power supply circuit of motorcycle display instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201211894U CN201466971U (en) | 2009-05-29 | 2009-05-29 | Special power supply circuit of motorcycle display instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201466971U true CN201466971U (en) | 2010-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201211894U Expired - Fee Related CN201466971U (en) | 2009-05-29 | 2009-05-29 | Special power supply circuit of motorcycle display instrument |
Country Status (1)
| Country | Link |
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| CN (1) | CN201466971U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820794A (en) * | 2012-08-27 | 2012-12-12 | 杭州电子科技大学 | Power supply circuit using ultrasonic scalpel mainframe to output electric energy |
| CN103037587A (en) * | 2012-12-26 | 2013-04-10 | 上海航空电器有限公司 | Light adjustment control circuit capable of eliminating interference of control signal end |
| CN103557502A (en) * | 2013-10-12 | 2014-02-05 | 奇瑞汽车股份有限公司 | Control circuit of automobile LED daytime running lamp |
| CN103856033A (en) * | 2012-11-28 | 2014-06-11 | 海洋王（东莞）照明科技有限公司 | Diode protection circuit |
-
2009
- 2009-05-29 CN CN2009201211894U patent/CN201466971U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820794A (en) * | 2012-08-27 | 2012-12-12 | 杭州电子科技大学 | Power supply circuit using ultrasonic scalpel mainframe to output electric energy |
| CN102820794B (en) * | 2012-08-27 | 2015-05-20 | 杭州电子科技大学 | Power supply circuit using ultrasonic scalpel mainframe to output electric energy |
| CN103856033A (en) * | 2012-11-28 | 2014-06-11 | 海洋王（东莞）照明科技有限公司 | Diode protection circuit |
| CN103037587A (en) * | 2012-12-26 | 2013-04-10 | 上海航空电器有限公司 | Light adjustment control circuit capable of eliminating interference of control signal end |
| CN103037587B (en) * | 2012-12-26 | 2017-06-06 | 上海航空电器有限公司 | A kind of adjusting control circuit for eliminating control signal end interference |
| CN103557502A (en) * | 2013-10-12 | 2014-02-05 | 奇瑞汽车股份有限公司 | Control circuit of automobile LED daytime running lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20110529 |