CN102300361B - LED (light emitting diode) electric torch manufactured by one battery - Google Patents
LED (light emitting diode) electric torch manufactured by one battery Download PDFInfo
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- CN102300361B CN102300361B CN201110145407XA CN201110145407A CN102300361B CN 102300361 B CN102300361 B CN 102300361B CN 201110145407X A CN201110145407X A CN 201110145407XA CN 201110145407 A CN201110145407 A CN 201110145407A CN 102300361 B CN102300361 B CN 102300361B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention belongs to the technical fields of electronic technique and LED (light emitting diode) applications, and relates to an LED electric torch manufactured by one battery. The LED electric torch consists of a 1.5V battery, a direct-current power supply filter circuit, a self-oscillation boosting-type switch power supply, an open switch, a closed circuit and light emitting element LEDs; the model of a direct-current conversion direct-current boosting-type IC (integrated circuit) is MAX757; the light emitting element LEDs are six high-white light emitting diodes; and the operation current of a traditional incandescent lamp electric torch of two batteries is much greater than that of the electric torch manufactured by an LED, the power consumed by a common incandescent lamp electrictorch is 7-9 times that of the LED electric torch, and the luminous brightness of the common incandescent lamp electric torch is worse than that of the LED electric torch. According to the invention,six ultrahigh white light emitting diodes can be lighted up only using a No.5 alkaline battery or a No.5 common battery, and the electric torch is much suitable for night lighting of household life, camping, travelling and the like.
Description
Technical field
The invention belongs to electronic technology and LED applied technical field, is the LED flashlight of making about a kind of of one batteries.
Background technology
Two traditional batteries incandescent lamp flashlight general work electric current 〉=240mA, and the flashlight operating current of making of LED only has 60mA, the power that the ordinary incandescent lamp flashlight consumes is 7～9 times of LED flashlight power approximately, and luminous brightness also is not so good as the brightness of LED flashlight.In addition, effective operating voltage of incandescent lamp flash-light battery is much larger than the flashlight of making of LED.
To exist power consumption big in order to overcome two traditional batteries incandescent lamp flashlights, and the defective that brightness is low, the miniature flashlight of making of LED of the present invention only uses No. 5 alkaline batteries of a joint or No. 5 common batteries of a joint, just can light 6 super brightness white light-emitting diodes, and after about 12 minutes, can close complete automatically, No. 5 common batteries of one joint generally can use more than 16 days, were applicable to very much at home, camped, night lighting such as out on tours.The flashlight of making of super brightness white light-emitting diode LED of the present invention is a kind of energy-saving and environmental protection, economic, practical technical scheme, and what core parts adopted in the circuit is the MAX757 integrated circuit.
Below describe the correlation technique content that LED flashlight that usefulness one batteries of the present invention makes relates in detail in manufacturing process.
Summary of the invention
Goal of the invention and beneficial effect: two traditional batteries incandescent lamp flashlight operating currents are much larger than the flashlight operating current of making of LED, the power that the ordinary incandescent lamp flashlight consumes is 7～9 times of LED flashlight power approximately, and luminous brightness is also not as the LED flashlight.The miniature flashlight of making of LED of the present invention only uses No. 5 alkaline batteries of a joint or No. 5 common batteries of a joint, just can light 6 super brightness white light-emitting diodes, is applicable to very much the house, camps, night lighting such as out on tours.Making flashlight with LED is a kind of energy-saving and environmental protection, economic, practical technical scheme, and what core parts adopted in the circuit is the MAX757 integrated circuit.
Technical characterictic: with the LED flashlight that a batteries is made, be made up of 1.5V battery, DC power supply filter circuit, self-oscillation booster switcher power supply, open circuit and shut-off circuit and light-emitting component LED, its feature comprises:
Self-oscillation booster switcher power supply is by DC converting direct current integrated circuit (IC) 1 and energy storage inductor L1, Schottky diode D1 and capacitor C 5 are formed, its connection features is: the end of connecting resistance R2 after 1 pin of DC converting direct current integrated circuit (IC) 1 links to each other with 4 pin, 6 pin of DC converting direct current integrated circuit (IC) 1 and the other end of resistance R 2, the end of potentiometer RP, the positive pole of the negative pole of Schottky diode D1 and electrochemical capacitor C5 links to each other, the negative pole connection circuit ground GND of 7 pin of DC converting direct current integrated circuit (IC) 1 and electrochemical capacitor C5,2 pin of DC converting direct current integrated circuit (IC) 1 connect the other end of potentiometer RP, one end of resistance R 1 and an end of capacitor C 2, the other end connection circuit ground GND of the other end of resistance R 1 and capacitor C 2,3 pin of DC converting direct current integrated circuit (IC) 1 connect an end of capacitor C 3 and an end of resistance R 3, the other end connection circuit ground GND of the other end of capacitor C 3 and resistance R 3,8 pin of DC converting direct current integrated circuit (IC) 1 connect the end of energy storage inductor L1 and the positive pole of Schottky diode D1, the anodal VCC of a termination circuit of inductance L 1;
The model of DC converting DC boosting integrated circuit (IC) 1 is MAX757;
The connection features of open circuit and shut-off circuit is: 6 pin of a termination DC converting direct current integrated circuit (IC) 1 of resistance R 5, the end of another termination push-button switch AN1 of resistance R 5, the end of the other end of push-button switch AN1, push-button switch AN2 links to each other with 5 pin of DC converting direct current integrated circuit (IC) 1, connection circuit ground GND behind the other end series resistor R6 of push-button switch AN2;
Light-emitting component LED is 6 white light-emitting diode LED1～LED6, its connection features is: the positive pole of 3 white light-emitting diode LED1, LED3 and LED5 is with the end of connecting resistance R7,6 pin of another termination DC converting direct current integrated circuit (IC) 1 of resistance R 7, the negative pole of 3 white light-emitting diode LED1, LED3 and LED5 connects the positive pole of 3 white light-emitting diode LED2, LED4 and LED6 respectively, and the negative pole of 3 white light-emitting diode LED2, LED4 and LED6 is with connection circuit ground GND.
The composition of other circuit and the connection features between the components and parts thereof
The connection features of timing circuit is: an end of capacitor C 4 links to each other with 5 pin of an end of resistance R 4 with DC converting direct current integrated circuit (IC) 1, the other end connection circuit ground GND of the other end of capacitor C 4 and resistance R 4.
1.5V the positive pole of battery links to each other with the anodal VCC of circuit.
1.5V the negative pole of battery links to each other with circuit ground GND.
The operation principle of circuit: DC converting direct current integrated circuit (IC) 1 is formed self-oscillatory booster switcher power supply with energy storage inductor L1, Schottky diode D1 and capacitor C 5 etc., the cell voltage of one joint 1.5V can be risen to 3.9V, for 6 white light-emitting diode LED1～LED6 of series-parallel system provide working power.Resistance R 7 is current-limiting resistance, flows through the about 20mA of electric current of every LED of white, load total current≤60mA.
The monostable trigger of DC converting direct current integrated circuit (IC) 1 inside and output stage MOSFET field effect transistor and external circuit are formed the pulse-width modulation circuit of peak limiting electric current, the operating frequency of its Switching Power Supply determines that by the ratio of input voltage and output voltage and the inductance value of power output and energy storage inductor L1 its frequency is about 180kHz.Output voltage determines that by the ratio of feedback potentiometer RP and resistance R 1 wherein potentiometer RP is used for regulating the height of output voltage, and capacitor C 2 is for exchanging shunt capacitance.
5 pin of DC converting direct current integrated circuit (IC) 1 are former to be used for detecting battery low-voltage.When cell voltage is down to the 1.24V reference voltage of DC converting direct current integrated circuit (IC) 1 inside, the open-drain of inner field effect transistor, 1 pin that output 4 pin of DC converting direct current integrated circuit (IC) 1 are about to turn-off DC converting direct current integrated circuit (IC) 1 is pulled to low level, makes DC converting direct current integrated circuit (IC) 1 stop output.Because the cell voltage in the circuit has only 1.5V, so changing it into timing automatic closes complete, that is: when pushing button switch AN1, capacitor C 4 is charged to output voltage close to DC converting direct current integrated circuit DC converting direct current integrated circuit (IC) 1 rapidly through resistance R 5, make the comparator upset of DC converting direct current integrated circuit (IC) 1 inside, then 1 foot of DC converting direct current integrated circuit (IC) 1 is pulled to high level by resistance R 4, so DC converting direct current integrated circuit (IC) 1 is started working, 6 white light-emitting diode LED1～LED6 are lighted.When unclamping key switch AN1, capacitor C 4 just begins through resistance R 4 discharges, approximately through 12 minutes, the both end voltage of capacitor C 4 drops to the reference voltage that is lower than DC converting direct current integrated circuit (IC) 1 inside, comparator output uprises, 1 pin current potential step-down of DC converting direct current integrated circuit (IC) 1, then DC converting direct current integrated circuit (IC) 1 stops output, and 6 white light-emitting diode LED1～LED6 extinguish.If the sensation timing is short partially, can suitably increase the resistance of resistance R 6.If think to close the light of finishing flashlight at any time, can click key switch AN2, capacitor C 4 is discharged rapidly through resistance R 6,6 white light-emitting diode LED1～LED6 extinguish at once.
Description of drawings
Embodiment
Circuit working schematic diagram and description of drawings according to the LED flashlight of making of a batteries shown in the accompanying drawing 1, and according to the annexation between the components and parts in the described each several part circuit of summary of the invention, and the components and parts technical parameter described in the execution mode requires to implement to realize the present invention; Below be that example is elaborated with a batteries.
The selection of components and parts and technical parameter thereof
IC1 is the DC converting DC voltage booster circuit, and its model is selected U.S. Maxim (U.S. letter) MAX757 that company produces for use, and this integrated circuit has 8 pins, is DIP dual inline type Plastic Package;
L1 is the energy storage inductor coil, and inductance value is 22mH, requires the operating current 〉=100mA of inductance;
D1 is Schottky diode, parameters selection operating current 〉=1A;
Resistance uses metalfilmresistor, and power is 1/8W, and the resistance of resistance R 1 is: 10K Ω; The resistance of resistance R 2 is 1M Ω; The resistance of resistance R 3 is 10k Ω; The resistance of resistance R 4 is 10M Ω; The resistance of resistance R 5 is 10k Ω; The resistance of resistance R 6 is 10k Ω; The resistance of resistance R 7 is that 3.3 Ω, power are 1/2W; RP potentiometer, its resistance are 22k Ω;
C1, C5 are electrochemical capacitor, and its capacity is respectively 100 μ F/10V, 47 μ F/10V; C2, C3, C4 are electric capacity of the dacron, and its capacity all is 0.1 μ F;
LED1～LED6 is ￠ 5 super brightness white light-emitting diodes, requires technical parameter consistent as far as possible;
AN1, AN2 are one pole push-button switch open in usual.
The making of circuit and debugging
Very simple because of the circuit structure of the LED flashlight made of a batteries, make than being easier to, it is general that the physical connection of components and parts is correct as long as the components and parts performance of use is intact, circuit does not need to debug just can operate as normal.
Because DC converting direct current integrated circuit (IC) 1 is the COMS device, when welding, electric iron should be taked the measure of antistatic, otherwise is easy to damage the COMS device.Require wiring short, more as far as possible, to reduce unnecessary line loss.
In circuit debugging, a batteries can be earlier with the adjustable stabilized voltage supply replacement of output current 〉=0.8A, and Schottky diode D1 cuts and can not use the ordinary silicon rectifier diode, otherwise the effect of boosting is bad and conversion efficiency will reduce significantly.Do not reach 60mA if find the electric current of output, whether the resistance that should detect resistance R 7 earlier changes, or directly with resistance R 7 short circuits; Whether the parameter that reexamines inductance coil L1 is normal, can change 1 operating current inductance coil of some greatly, or select 1 slightly smaller inductance coil of inductance value to try it.
The adjustment of circuit output voltage: should make the both end voltage of resistance R 7 at 180～200mV, the loaded work piece electric current is equivalent to the electric current of 56～60mA, if the excessive resistance that should suitably adjust potentiometer RP of electric current.
Claims (3)
1. LED flashlight of making of a batteries, it is made up of 1.5V battery, DC power supply filter circuit, self-oscillation booster switcher power supply, open circuit and shut-off circuit and light-emitting component (LED), and its feature comprises:
Described self-oscillation booster switcher power supply is by DC converting direct current integrated circuit (IC1) and energy storage inductor (L1), Schottky diode (D1) and the 5th electrochemical capacitor (C5) are formed, the 1st pin of DC converting direct current integrated circuit (IC1) and the 4th pin connect an end of second resistance (R2), the other end of the 6th pin of DC converting direct current integrated circuit (IC1) and second resistance (R2), one end of potentiometer (RP), the positive pole of the negative pole of Schottky diode (D1) and the 5th electrochemical capacitor (C5) links to each other, the negative pole connection circuit ground (GND) of the 7th pin of DC converting direct current integrated circuit (IC1) and the 5th electrochemical capacitor (C5), the 2nd pin of DC converting direct current integrated circuit (IC1) connects the other end of potentiometer (RP), one end of one end of first resistance (R1) and second electric capacity (C2), the other end connection circuit ground (GND) of the other end of first resistance (R1) and second electric capacity (C2), the 3rd pin of DC converting direct current integrated circuit (IC1) connects an end of the 3rd electric capacity (C3) and an end of the 3rd resistance (R3), the other end connection circuit ground (GND) of the other end of the 3rd electric capacity (C3) and the 3rd resistance (R3), the 8th pin of DC converting direct current integrated circuit (IC1) connects an end of energy storage inductor (L1) and the positive pole of Schottky diode (D1), a termination circuit positive pole (VCC) of energy storage inductor (L1);
The model of described DC converting DC boosting integrated circuit (IC1) is MAX757;
The 6th pin of one termination DC converting direct current integrated circuit (IC1) of the 5th resistance (R5) in described open circuit and the shut-off circuit, one end of another termination first push-button switch (AN1) of the 5th resistance (R5), one end of the other end of first push-button switch (AN1), second push-button switch (AN2) links to each other with the 5th pin of DC converting direct current integrated circuit (IC1), and the other end of second push-button switch (AN2) is connected in series connection circuit ground (GND), the 6th resistance (R6) back;
Described light-emitting component (LED) is 6 white light-emitting diodes (LED1～LED6), first white light-emitting diode (LED1), the positive pole of the 3rd white light-emitting diode (LED3) and the 5th white light-emitting diode (LED5) connects an end of the 7th resistance (R7), the 6th pin of another termination DC converting direct current integrated circuit (IC1) of the 7th resistance (R7), first white light-emitting diode (LED1), the negative pole of the 3rd white light-emitting diode (LED3) and the 5th white light-emitting diode (LED5) connects second white light-emitting diode (LED2) respectively, the positive pole of Sibai look light-emitting diode (LED4) and the 6th white light-emitting diode (LED6), second white light-emitting diode (LED2), the negative pole connection circuit ground (GND) of Sibai look light-emitting diode (LED4) and the 6th white light-emitting diode (LED6).
2. the LED flashlight made of usefulness one batteries according to claim 1, it is characterized in that: an end of the 4th electric capacity (C4) in the timing circuit links to each other the other end connection circuit ground (GND) of the other end of the 4th electric capacity (C4) and the 4th resistance (R4) with an end of the 4th resistance (R4) with the 5th pin of DC converting direct current integrated circuit (IC1).
3. the LED flashlight made of usefulness one batteries according to claim 1, it is characterized in that: the positive pole of 1.5V battery links to each other with circuit anode (VCC), and the negative pole of 1.5V battery links to each other with circuit ground (GND).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110145407XA CN102300361B (en) | 2011-06-01 | 2011-06-01 | LED (light emitting diode) electric torch manufactured by one battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110145407XA CN102300361B (en) | 2011-06-01 | 2011-06-01 | LED (light emitting diode) electric torch manufactured by one battery |
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| Publication Number | Publication Date |
|---|---|
| CN102300361A CN102300361A (en) | 2011-12-28 |
| CN102300361B true CN102300361B (en) | 2013-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110145407XA Expired - Fee Related CN102300361B (en) | 2011-06-01 | 2011-06-01 | LED (light emitting diode) electric torch manufactured by one battery |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103391673A (en) * | 2013-08-20 | 2013-11-13 | 吴建堂 | Boosted type LED flashlight provided with one battery |
| CN103458588A (en) * | 2013-09-22 | 2013-12-18 | 周芸 | High brightness LED flashlight |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5432427A (en) * | 1993-11-23 | 1995-07-11 | Chiang; Chih-Cheng | Battery charging control system |
| CN101364741A (en) * | 2007-08-09 | 2009-02-11 | 鸿富锦精密工业（深圳）有限公司 | Mobile phone charger |
| CN201845967U (en) * | 2010-11-23 | 2011-05-25 | 黄勇 | Multipurpose time-delay power socket manufactured by time-base circuit |
| CN202077244U (en) * | 2011-06-01 | 2011-12-14 | 刘喆 | Light-emitting diode (LED) flashlight manufactured by one battery |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7265503B2 (en) * | 2004-04-08 | 2007-09-04 | International Rectifier Corporation | Applications of halogen convertor control IC |
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2011
- 2011-06-01 CN CN201110145407XA patent/CN102300361B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5432427A (en) * | 1993-11-23 | 1995-07-11 | Chiang; Chih-Cheng | Battery charging control system |
| CN101364741A (en) * | 2007-08-09 | 2009-02-11 | 鸿富锦精密工业（深圳）有限公司 | Mobile phone charger |
| CN201845967U (en) * | 2010-11-23 | 2011-05-25 | 黄勇 | Multipurpose time-delay power socket manufactured by time-base circuit |
| CN202077244U (en) * | 2011-06-01 | 2011-12-14 | 刘喆 | Light-emitting diode (LED) flashlight manufactured by one battery |
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| CN102300361A (en) | 2011-12-28 |
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