CN203435210U - High-brightness light-emitting diode flashlight - Google Patents
High-brightness light-emitting diode flashlight Download PDFInfo
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- CN203435210U CN203435210U CN201320582289.3U CN201320582289U CN203435210U CN 203435210 U CN203435210 U CN 203435210U CN 201320582289 U CN201320582289 U CN 201320582289U CN 203435210 U CN203435210 U CN 203435210U
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Abstract
The utility model relates to a high-brightness light-emitting diode flashlight. The high-brightness light-emitting diode flashlight is characterized by comprising a 3V direct current power supply, a direct current-direct current boosting voltage-stabilizing circuit, a turning-on and turning-off circuit and a light-emitting component loop, wherein the direct current-direct current boosting voltage-stabilizing circuit is composed of a direct current-direct current booster voltage stabilizer IC1, an electrolytic capacitor C2, an energy storage inductor L1, a capacitor C3 and a voltage-stabilizing diode DW. The model of the selected direct current-direct current booster voltage stabilizer IC1 is MIC2297. The working current of a conventional incandescent lamp flashlight with two batteries is no less than 240mA, the consumption power of the common incandescent lamp flashlight is 4-6 times as large as that of the LED flashlight, and the brightness of the incandescent lamp flashlight is greatly inferior to the brightness of the high-brightness light-emitting diode flashlight. In order to solve the defects that the conventional incandescent lamp flashlight is large in power consumption, low in brightness and the like, the high-brightness light-emitting diode flashlight capable of lighting 8 super-high brightness white light-emitting diodes with only two No.5 alkaline batteries is provided.
Description
Technical field
The utility model belongs to electronic technology and light-emitting diode application, is about a kind of high brightness LED flashlight.
Background technology
Two traditional batteries incandescent lamp flashlight operating current >=240mA, the power that ordinary incandescent lamp flashlight consumes is approximately 4～6 times of LED flashlight, and the luminosity of incandescent lamp flashlight can not show a candle to high brightness light emitting diode LED flashlight.In addition, effective operating voltage of incandescent lamp flash-light battery is much larger than the flashlight of making of high brightness light emitting diode LED.High brightness light emitting diode LED not only has that luminous efficiency is high, energy consumption is little, and operating current is from 20mA to 60mA, and No. 5 batteries of two joints can use about six months, has greatly saved the use amount of battery.
In order to change traditional two batteries incandescent lamp flashlights, exist power consumption large, and the defects such as brightness is low, high brightness LED flashlight described in the utility model only, with No. 5 alkaline batteries of two joints or No. 5 dry cells of two joints, can be lighted 8 super brightness white light-emitting diodes.
Below describe high brightness LED flashlight described in the utility model related correlation technique content in implementation process in detail.
Utility model content
Goal of the invention and beneficial effect: two traditional batteries incandescent lamp flashlight operating current >=240mA, the power that ordinary incandescent lamp flashlight consumes is approximately 4～6 times of LED flashlight, and the luminosity of incandescent lamp flashlight can not show a candle to high brightness light emitting diode LED flashlight.In order to change traditional two batteries incandescent lamp flashlights, exist power consumption large, and the defects such as brightness is low, high brightness LED flashlight described in the utility model only, with No. 5 alkaline batteries of two joints or No. 5 dry cells of two joints, can be lighted 8 super brightness white light-emitting diodes.
The operation principle of circuit: high brightness LED flashlight is in order to cut down use amount and the installing space of components and parts, in circuit, used a 600KHz boost-voltage regulator MIC2297, its inner pulse-width modulation PWM mode of using, the voltage stabilizing output voltage that boosts is 40V.
Direct current/direct current booster voltage regulator IC1 can drive 8 super bright white light-emitting diode LED of series connection, linear regulation precision < 1%, when circuit turn-offs, current sinking is 1 μ A, input voltage is connected into 3V power supply by two joint 1.5V battery strings, connect toggle switch SK, circuit is started working, and super bright white light-emitting diode LED is lit; Disconnect toggle switch SK, super bright white light-emitting diode LED extinguishes.
It forms oscillation boosting voltage regulator circuit by direct current/direct current booster voltage regulator IC1, energy storage inductor L1, electrochemical capacitor C2 and capacitor C 3, it rises to 40V by two joint 1.5V cell voltages, for the super bright white light-emitting diode LED1～LED8 of series system provides working power, the electric current that flows through super bright white light-emitting diode LED is about 22mA.
Electrochemical capacitor C2 is filter capacitor; R1 is current sense resistor; DW is voltage stabilizing didoe, and for the protection of the power tube of direct current/direct current booster voltage regulator IC1 inside, SK is the external toggle switch of flashlight.
Technical scheme: high brightness LED flashlight, it comprises 3V DC power supply, direct current/direct current booster voltage stabilizing circuit, opens and closes circuit, light-emitting component loop, it is characterized in that:
Direct current/direct current booster voltage stabilizing circuit: it is by direct current/direct current booster voltage regulator IC1, electrochemical capacitor C2, energy storage inductor L1, capacitor C 3 and voltage stabilizing didoe DW form, the anodal VCC of the VIN pin of direct current/direct current booster voltage regulator IC1 and EN pin connection circuit, the REF pin of direct current/direct current booster voltage regulator IC1 connects the positive pole of electrochemical capacitor C2, the PGND pin connection circuit ground GND of the AGND pin of the negative pole of electrochemical capacitor C2 and direct current/direct current booster voltage regulator IC1 and direct current/direct current booster voltage regulator, the SW pin of direct current/direct current booster voltage regulator IC1 connects one end of energy storage inductor L1 and the positive pole of voltage stabilizing didoe DW, the anodal VCC of other end connection circuit of energy storage inductor L1, the OVP pin of direct current/direct current booster voltage regulator IC1 connects the negative pole of voltage stabilizing didoe DW, the COMP pin of direct current/direct current booster voltage regulator IC1 is by capacitor C 3 connection circuit ground GND,
Open and close circuit: the BRT pin of direct current/direct current booster voltage regulator IC1 connects one end of toggle switch SK, the anodal VCC of other end connection circuit of toggle switch SK;
Light-emitting component loop: it is comprised of 8 super bright white light-emitting diode LED1～LED8,8 super bright white light-emitting diode LED1～LED8 connect mutually, the positive pole of super bright white light-emitting diode LED1 connects the OVP pin of direct current/direct current booster voltage regulator IC1, the negative pole of super bright white light-emitting diode LED8 connects one end of FB pin and the current sense resistor R1 of direct current/direct current booster voltage regulator IC1, the other end connection circuit ground GND of current sense resistor R1;
The positive pole of 3V DC power supply is connected with circuit anode VCC, and the negative pole of 3V DC power supply is connected with circuit ground GND.
Accompanying drawing explanation
Accompanying drawing is the embodiment circuit working schematic diagram that the utility model provides a high brightness LED flashlight; The negative pole of 3V DC power supply is connected with circuit ground GND.
Embodiment
According to high brightness LED electric torch circuit fundamental diagram shown in the drawings and accompanying drawing explanation, and according to annexation between components and parts in the each several part circuit described in utility model content, and the components and parts technical parameter described in execution mode requires and circuit production main points are implemented to realize the utility model, below in conjunction with embodiment, correlation technique of the present utility model is further described.
The selection of components and parts and technical parameter thereof
IC1 is direct current/direct current booster voltage regulator, the MIC2297 that selects MS to produce, and employing 2.5mm * 2.5mm is square, the miniature Lead-free in Electronic Packaging of MLF-10L;
L1 is energy storage inductor, and inductance value is 10～22mH, requires the operating current >=100mA of inductance;
DW is voltage stabilizing didoe, and its voltage stabilizing value is 41V;
R1 is current sense resistor, and its resistance is that 10 Ω, power are 1W;
C1 is electrochemical capacitor, and its capacity is 100 μ F/10V; C2 is electrochemical capacitor, and its capacity is 1 μ F/10V; C3 is electric capacity, can select electric capacity of the dacron, and its capacity is 0.1 μ F;
LED1～LED8 is 8 super bright white light-emitting diodes of ￠ 5, requires technical parameter basically identical;
SK is toggle switch.
Making main points and the circuit debugging of circuit
Because of the circuit structure of high brightness LED flashlight fairly simple, as long as the electronic devices and components performance of generally selecting is intact, and the components and parts annexation in accompanying drawing is welded to specifications, physical connection line and welding quality are after careful inspection is correct, and circuit of the present utility model does not substantially need to carry out any debugging and can work;
When circuit debugging, first by the adjustable stabilized voltage power supply of output current >=0.1A, replace two joint 1.5V batteries, if output current does not reach 22mA, should first check that whether the resistance of current sense resistor R1 is normal; Whether the parameter that reexamines energy storage inductor L1 meets the requirements, also replaceable 1 energy storage inductor that operating current is larger, or select 1 slightly smaller energy storage inductor of inductance value to try it.
Claims (1)
1. a high brightness LED flashlight, it comprises 3V DC power supply, direct current/direct current booster voltage stabilizing circuit, opens and closes circuit, light-emitting component loop, it is characterized in that:
Described direct current/direct current booster voltage stabilizing circuit is by direct current/direct current booster voltage regulator IC1, electrochemical capacitor C2, energy storage inductor L1, capacitor C 3 and voltage stabilizing didoe DW form, it is the MIC2297 that MS produces that direct current/direct current booster voltage regulator IC1 selects model, the anodal VCC of the VIN pin of direct current/direct current booster voltage regulator IC1 and EN pin connection circuit, the REF pin of direct current/direct current booster voltage regulator IC1 connects the positive pole of electrochemical capacitor C2, the PGND pin connection circuit ground GND of the AGND pin of the negative pole of electrochemical capacitor C2 and direct current/direct current booster voltage regulator IC1 and direct current/direct current booster voltage regulator, the SW pin of direct current/direct current booster voltage regulator IC1 connects one end of energy storage inductor L1 and the positive pole of voltage stabilizing didoe DW, the anodal VCC of other end connection circuit of energy storage inductor L1, the OVP pin of direct current/direct current booster voltage regulator IC1 connects the negative pole of voltage stabilizing didoe DW, the COMP pin of direct current/direct current booster voltage regulator IC1 is by capacitor C 3 connection circuit ground GND,
The BRT pin of direct current/direct current booster voltage regulator IC1 in described open and close circuit connects one end of toggle switch SK, the anodal VCC of other end connection circuit of toggle switch SK;
Described light-emitting component loop is comprised of 8 super bright white light-emitting diode LED1～LED8,8 super bright white light-emitting diode LED1～LED8 connect mutually, the positive pole of super bright white light-emitting diode LED1 connects the OVP pin of direct current/direct current booster voltage regulator IC1, the negative pole of super bright white light-emitting diode LED8 connects one end of FB pin and the current sense resistor R1 of direct current/direct current booster voltage regulator IC1, the other end connection circuit ground GND of current sense resistor R1;
The positive pole of described 3V DC power supply is connected with circuit anode VCC, and the negative pole of 3V DC power supply is connected with circuit ground GND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320582289.3U CN203435210U (en) | 2013-09-22 | 2013-09-22 | High-brightness light-emitting diode flashlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320582289.3U CN203435210U (en) | 2013-09-22 | 2013-09-22 | High-brightness light-emitting diode flashlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203435210U true CN203435210U (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320582289.3U Expired - Fee Related CN203435210U (en) | 2013-09-22 | 2013-09-22 | High-brightness light-emitting diode flashlight |
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| Country | Link |
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| CN (1) | CN203435210U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103458588A (en) * | 2013-09-22 | 2013-12-18 | 周芸 | High brightness LED flashlight |
| CN104602383A (en) * | 2015-02-14 | 2015-05-06 | 吴圣铎 | Single-tube LED flashlight |
-
2013
- 2013-09-22 CN CN201320582289.3U patent/CN203435210U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103458588A (en) * | 2013-09-22 | 2013-12-18 | 周芸 | High brightness LED flashlight |
| CN104602383A (en) * | 2015-02-14 | 2015-05-06 | 吴圣铎 | Single-tube LED flashlight |
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| Date | Code | Title | Description |
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| 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: 20140212 Termination date: 20140922 |
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| EXPY | Termination of patent right or utility model |